Golden queen mining

golden queen mining

The Company engaged Mine Development Associates, Reno, Nevada (“MDA”) to update the geological model from first principles and to provide updated. Das Jahr war bislang das erfolgreichste der GOLDEN QUEEN MINING- Aktie, hier konnten sich die Aktionäre über einen Kursgewinn von 20,9% freuen. Golden Queen Mining Co. Aktie (WKN / ISIN CAJ) - Aktueller Kurs, Charts und Nachrichten. Derzeit keine aktuellen Daten verfügbar. Nachrichten von ausgesuchten Anstehende boxkämpfe, die sich im Speziellen mit diesem Unternehmen befassen. Momentan liegen keine aktuellen Meldungen vor. Alle Nachrichten, die dieses Unternehmen betreffen. Nachrichten von casino-filmtheater Quellen, die sich im Speziellen mit diesem Unternehmen befassen Alle: Energie und Rohstoffe Land: Ich mache dich über Nacht berühmt, und wenn es ein Jahr dauert. Zur Aktie Bvb gegen porto Queen Mining. Kennzahlen Golden Queen Mining Aktie. Kontakt Impressum Werben Presse Sitemap. Zertifikate sportal bg Golden Queen Mining. Kontakt - Impressum - Werben - Presse mehr anzeigen. The AMEC QP has fully relied upon and disclaims responsibility for information anstehende boxkämpfe by GQM staff and experts retained by GQM for information relating to the environmental studies performed and approvals and permits obtained for the Project. Operating costs are described in sub-section Swath plots check for local bias by visual comparison of how well the estimated model grades follows Cl ergebnis model grades. Poker gratis ohne anmeldung hole collars were located by Quality Surveying. The remainder of drill logs recorded measured recoveries for each cored interval. The low-grade zone has a minimum composite-length of 20 ft, two 10 ft composites. Support equipment such golden queen mining a grader, a water truck and tracked dozers and a wheel dozer will be used for road and bench maintenance, dust control and work in the waste rock disposal areas. The work was done to assess the surface and subsurface geotechnical conditions to support the design for the Phase 1 and Phase 2 heap leach pads, the foundations for the crushing-screening plant, the foundations for the workshop-warehouse, for site runoff control, colonel von ryans express stream to identify suitable soils for use as low-permeability soil liner material. Rock codes were incorporated in the analyses to identify changes in gold values that could be fruit action slot to vein mineralization. GQM em halbfinale live stream plans to process and sell leached and rinsed residues from the heap leach operation for a range of uses to local and regional markets.

Additional drilling is warranted to test the subsurface extent of the Alphson zone. The Bobtail Vein and Hope Vein systems project southeast into an area covered by recent alluvium.

Additional drilling may increase the resource on these two veins. Southern end of the Golden Queen Footwall Vein. A core hole drilled in the early s encountered sporadic 0.

The silicification appears to be nearly horizontal and may represent pervasive silicification above a higher grade, structurally controlled feeder zone.

The exploration programs completed to date are appropriate to the style of the deposits and prospects within the Project. The exploration and research work supports the interpretations of the orogenesis of the deposits.

The Project retains significant exploration potential, and additional work is planned after the start of production. The geotechnical and hydrological studies completed to date support a feasibility level engineering study and mine plan.

The drilling database consists of surface and underground drill hole samples as well as underground cross-cut channel samples. All underground cross-cut channel samples were labelled and treated as drill holes.

All un-assayed intervals missing samples were set to null values and not used in the resource estimation. Twenty RC holes were drilled for a total of 6, ft.

The RC holes were concentrated in Szones 2 and 4 on the northern limit of the mineralized zones. The general location and orientation of the RC holes is shown in Figure A syndicate headed by GFA acquired most of the properties in and completed extensive exploration programs until ordered to cease operations by Order L of the War Production Board in Additional channel samples were collected by various operators on other vein systems Karma since the district was discovered.

Information from an additional 97 underground channel samples totalling 6, Rosario and Shell-Billiton drilled 52 RC holes totalling 11, ft.

The first round of exploration drilling ended in and the Project was placed on care and maintenance from to GQM added RC holes for a total of , ft.

Drilling was restarted in and carried on until During this second period of drilling, an additional RC drill holes for a total of , ft.

GQM collected information from an additional 97 underground cross-cut channel samples totalling 6, GQM drilled a total of 6, ft. Nine drill holes were collared in the North-west Pit area, and the remaining 11 were drilled in the East Pit area.

This drill program was based on recommendations made by AMEC to increase the drill density in these two areas. RC drilling was completed wet with water injection to control dust emissions.

AMEC did not observe the drilling in the field. Based upon the discrepancies between the collar survey orientations and the downhole surveys at East Pit performed by Golder, AMEC believes there is significant uncertainty in the true orientation of the drill holes at Soledad Mountain.

Because the lengths of the drill holes are relatively short, the risk of a significant error in the location of mineralized intercepts is low.

AMEC calculated the theoretical cumulative downhole deviation as a result of a 6. Drilling methods are described here from information compiled by MRA MRDI reports that information on contractors and drill-rigs used for the first RC holes drilled from to was not available.

Drill bits ranging from 4. Samples reportedly were collected at the drill rig at 5 ft. According to GQM staff, drilling was carried out with water injection to control dust emissions.

This required use of a rotating wet splitter. MRDI inspected five drill sites near the Level portal and found that the plastic bags in which rig duplicate samples had been stored had decayed, ruining the sample, or that samples had been destroyed during subsequent road work.

As a result, very few rig duplicate samples were preserved in a condition that permitted check sampling. RC samples were not weighed at the time they were collected; therefore, sample recovery could not be determined.

Twelve surface diamond drill holes were drilled from to by several contractors. Information is not available concerning drill-rigs utilized.

From onwards, surface diamond drilling has been carried out by McFeron and Marcus Exploration, Inc. All core was HQ 2.

Underground core drilling was done, starting in , by Boart Longyear Company using LM75 drill rigs. Core boxes are in good condition and stored in a secure, well-organized fashion on wooden shelves.

The core was either split mechanically or sawed. Three quarters of the core was collected for assaying, and one quarter was retained for reference.

Core logs were reviewed for all 59 holes to check core recovery through zones of mineralization. Recovery was not recorded for core holes Only general comments regarding recovery were made for holes DDH rather than recording actual measuremen ts for each drill run.

The remainder of drill logs recorded measured recoveries for each core interval. The number of mineralized intervals with poor core recovery is relatively small for the 43 core holes for which recovery information is available.

MRDI reports that recovery appears to have been adequate to meet industry standards for holes 22 and onward. Records are substandard for the earliest 16 holes, however, and the impact of poor recovery in these holes is expected to be insignificant on Mineral Reserve estimates.

Only three of the 16 drill holes lie within the Mineral Reserve pit and two of the drill holes are supported by nearby RC drill holes or cross cut data within ft.

Channels are 6 inch wide and 1 inch deep and generally at least 5 ft. The technique of sampling employed by GFA is unknown, but it appears that a 2 in by 6 in board was used as a guide and the channel was cut with hand chisels until the board fit neatly within the channel.

Channels of this size should have produced a sample weighing about 33 lb to 35 lb per 5 ft. Samples reportedly were assayed at the mill laboratory on site.

Information on sample preparation and assay method is not available. In and , GQM carried out a program of re-sampling those cross-cuts that were channel-sampled by GFA, and a program of channel sampling other cross-cuts that either had not been previously sampled or where results for previous sampling were not available in a usable form.

GQM staff used a pneumatic hammer to cut horizontal channels from 2 inch to 3 inch wide and 5 feet long. An attempt was made to closely duplicate original channels cut by GFA, but this was not always possible because markings of the original channels did not survive or were illegible.

In these cases, the locations of the original channels were relocated using map linens of sample locations and underground survey markers.

Rock chips were collected on a canvas sheet. Samples weighing about 32 lb were produced from GQM channels. All channels inspected were relatively consistent in width and depth.

Additional channel samples were cut by GQM in to provide check information. The log accurately describes core observed by MRDI in core boxes.

Rock Quality Designation RQD was not measured prior to splitting core for any holes other than the five geotechnical holes. Core logging data and procedures met industry standards at the time.

Samples from RC drill holes were sieved, washed and either mounted on chip boards or retained in plastic chip trays. Chips were logged at the office with a binocular microscope, and observations were recorded on logs.

Parameters recorded were lithology, alteration, mineralization, oxidation and structural features such as intensity of fracturing and brecciation.

Logs were inspected for 20 drill holes, representing three percent of the total number of reverse-circulation drill holes. The quality of logging was professional, although the visual similarity between rhyolite porphyry, silicified pyroclastics and flow-banded rhyolites was a source of error in interpretations by different geologists logging the same drill chips.

GQM resolved errors in interpretation prior to modelling for the feasibility study. Logging of reverse-circulation holes is adequate for a feasibility study.

Samples from reverse-circulation drill holes were sieved, washed and retained in plastic chip trays. Drill-hole collar locations were surveyed relative to the historical mine grid by DeWalt Corporation, Bakersfield, California.

The accuracy of collar surveys for all drill holes was checked by MRDI by plotting drill-hole collar elevations on a digital topographic map contour interval of 10 ft and checking drill collar elevations against the topographic elevation.

A total of 26 drill holes were found to have collar elevations greater than 10 ft above or below the topographic elevation. Local systematic errors, such as groups of drill holes with errors corresponding to the same direction in error relative to the topographic elevation, were found.

Discrepancies in the horizontal location of collars range from 25 ft to as much as ft. One group of 14 RC drill holes targeting the Queen Esther Vein had a systematic error in which drill collars were located from 20 ft to 50 ft southwest of the correct location.

The collar positions of GQ and GQ were checked in the field and were found to be reasonable relative to the portal of the level.

The collar for GQ could not be found and most likely was destroyed by later road work. The positions of underground cross-cut channel samples were located by GQM by using historical transit surveys of underground workings.

The location of cross-cut channel samples was corrected by GQM if the elevation of those samples were tied to incorrect portal elevations.

Two drill holes were completed in a vertical orientation. Total depths for the drill holes ranged between 90 ft and ft.

Drill hole collars were located by Quality Surveying, Inc. Total depths for the drill holes ranged between ft and ft. Drill hole collars were located by Quality Surveying.

While the new surveyed orientations agree with the down-hole surveys for drill hole GQ, the differences in orientation for drill holes GQ and GQ remain significant Table It is not expected that this will have a significant effect on Mineral Resources since drill hole GQ is bracketed by three additional RC drill holes within 72 ft and GQ is supported by a RC drill hole and a nearby cross cuts within 80 ft.

Down-hole surveys were not performed for holes drilled before This correction has produced a more reasonable interpretation of the location of veins and surrounding stockwork mineralization, as confirmed by comparisons between the location of veins in RC holes, core holes and underground workings.

The absence of down-hole surveys for RC holes should not materially affect resource estimation, given the average correction used and the fact that vein intercepts as found by RC drilling agree reasonably well with the locations of veins as indicated by underground cross-cut channel sampling and core drilling.

Future RC drill holes should be surveyed with a gyroscopic instrument or Reflex Maxi-bore, which will allow collection of dip and azimuth information inside the drill pipe.

Golder was contracted by GQM to complete down-hole surveys on the drilling. All of the holes in the Northwest Pit area were blocked and down-hole surveys were not completed Fahringer and Benson, Three of the 11 drill holes completed in the East Pit area were surveyed down-hole by Golder; the remaining 10 were blocked Fahringer and Benson, The 2DVA uses three flux-gate magnetometers to measure the magnetic field in the direction of each of the three axes.

Three piezoelectric accelerometers measure the acceleration due to gravity. These accelerometers are oriented along the same axis as the magnetometers.

The probe transmits magnetic field strength, magnetic orientation, and probe tilt and azimuth. The data are depth-encoded and transmitted through the wireline as a digital data stream, and are captured, decoded and displayed on a field computer.

RC samples were drilled wet and not weighed at the time they were collected; therefore, sample recovery could not be determined and therefore assessed.

Recovery was not recorded for core holes DDH The remainder of drill logs recorded measured recoveries for each cored interval.

MRDI reported that recovery appeared to have been adequate to meet industry standards for holes 22 and onward. RC samples were drilled wet and not weighed at the time they were collected; therefore, sample recovery could not be determined.

The RC and core drill holes completed by GQM were designed to confirm the geology, thickness and grade of gold and silver mineralization along historically-known, steeply dipping, mineralized structures.

Mineralized zones are regular in shape and generally conform to the orientation of the moderate to high angle structures. Where possible, drill holes were designed to intersect mineralization at right angles.

However, due to surface disturbance concerns, cost, and time, drill pads were designed to host multiple drill holes at variable dips. Therefore reported mineralized intercepts are generally longer than the true thickness of the mineralization.

Drilling done to support geotechnical and hydrological studies is described in Section 9. Twenty reverse circulation holes were drilled as condemnation holes in the area of the Phase 1 heap leach pad in Holes ranged in depth from 98 m ft to m ft.

Chips were logged and samples analyzed for gold and silver by Barringer Laboratories Inc. Only minor gold and silver values were recorded.

Exploration drilling done in the s confirms that there is no mineral potential in the area where the workshop-warehouse and the crushing-screening plant will be located.

In the opinion of the AMEC QP, the quantity and quality of the lithological, geotechnical, and collar and down-hole survey data collected in the exploration and drill campaigns completed by GQM, and the verification performed by GQM on legacy drill data are sufficient to support Mineral Resource and Mineral Reserve estimation as follows: GQM RC chip and core logging meets industry standards for exploration of an oxide gold and silver deposit.

Collar surveys and re-surveys of legacy drill hole collar locations have been performed using industry-standard instrumentation.

No down-hole surveys were performed before AMEC does not consider the absence of down-hole surveys to be a significant concern since the dips in these holes were adjusted to the average dip deviation, locations of mineralization is known based on underground workings, and drilling since has down-hole surveys.

Recoveries from GQM core drill programs are acceptable. Core recoveries from GFA are unknown. Geotechnical logging of drill core meets industry standards for planned open pit operations.

Drill orientations are generally appropriate for the mineralization style, and have been drilled at orientations that are optimal for the orientation of mineralization for most of the deposit area.

No material factors were identified with the data collection from the exploration programs that could affect Mineral Resource or Mineral Reserve estimation.

Based upon the discrepancies between the surveyed collar orientations and down- hole surveys at East Pit performed by Golder, AMEC believes there is significant uncertainty in the true orientation of the RC drill holes.

AMEC finds the RC drill sampling procedures to be adequate and consistent with industry standard practice. Drilling methods are described herein from information compiled by MRA Information on contractors and drill rigs utilized for the first reverse-circulation holes drilled from to was not available.

Since , reverse-circulation holes were drilled by Hackworth Drilling Company and P. Samples reportedly were collected at the drill rig at five-foot intervals.

According to GQM staff, drilling was carried out with water injection to reduce dust emissions. MRDI inspected five drill sites near the Level portal and found that the plastic bags in which rig duplicates were stored had decayed, ruining the sample, or that samples had been destroyed during subsequent road work.

As a result, very few rig duplicates are preserved in a condition that would permit check sampling. RC samples were not weighed at the time they were collected; therefore, sample recovery could not be evaluated.

Best practice requires collection of duplicates for at least one of every 20 samples, recording the fractional split taken as a sample and measuring the entire weight of each sample interval.

AMEC did not observe any of the sampling conducted during the drill campaign. Harris Drilling reports that RC cuttings were returned from the bit face, back up through the drill pipe, and into a cyclone on the surface to reduce velocity.

The cuttings then passed from the cyclone into a wet splitter below the cyclone, and the sample split was deposited into bags or five gallon buckets in five foot intervals.

Sample bags were marked and organized by the GQM geologist attending the drill rig. The weight of samples reported as received by the assay laboratory ranged between 2 and 4.

AMEC finds the to and the RC drill sampling procedures to be adequate and consistent with industry standard practice. Information is not available concerning drill rigs utilized.

Underground core drilling was conducted, starting in , by Boart Longyear Company using LM drill rigs. Core from holes drilled by GQM was inspected at a storage warehouse at the mine site.

Core logs were reviewed for all 59 holes to check for poor recoveries through zones of mineralization. Only general comments regarding recovery were made for holes DDH rather than recording actual measurements for each drill run.

MRDI found the following mineralized intervals to be coincident with poor core recovery: The number of mineralized intervals with poor core recovery is relatively small for the 43 core holes that have recovery information.

Recovery appears to have been adequate to meet industry standards for holes 22 and later. Records are substandard for the earliest 16 holes, however, and the impact of poor recovery in these holes cannot be assessed.

No core drilling was conducted during this campaign. GFA cross cut sampling is described in Section GQM cross cut sampling is described in Section Process development and metallurgical test programs are described in detail in Section No density samples were collected during the drilling campaign.

It is possible, but not certain that this sample preparation protocol was used for routine mine samples. Numeric entries usually had two places after the decimal place and rarely, three e.

No supporting documentation, such as assay certificates, is known to exist. More recent sample preparation procedures consist of crushing samples to approximately 10 mesh, then riffle splitting a sample of approximately to g, which is then pulverized in a ring-and-puck type pulveriser.

These procedures generally meet industry standards for sample preparation in this type of gold and silver deposit.

More recent assaying consists of either one or two assay-ton charges with either a gravimetric or atomic absorption finish.

The commercial assay laboratory performing the work varies over time, as summarized in Table Hence 2AT refers to a 2 assay-ton charge.

Many of the high-grade drill samples have been assayed twice: Where the fire assay value superseded the AA finish value, the fire assay value was entered into the assay database.

AMEC finds the sample preparation and assay methodology for gold and silver samples collected from to to be adequate for Mineral Resource and Mineral reserve estimation.

Fifty rig duplicates, selected at random by MRDI from available splits of RC samples stored on site, were re-submitted to Barringer Laboratory under new sample numbers Figure These selected samples were from 28 different drill holes.

Both these sets covered samples from various drill holes between GQ and GQ, but no effort was made to select matching identical drill-hole intervals for the two sets of data and, it so happens, no drill-hole interval was represented in both groups.

Results of the 50 rig duplicates averaged 0. The agreement is within acceptable limits and suggests that no significant bias exists in the drilling sample splits selected for assay.

Since many barren intervals were included, the effect of selection bias is considered to be low. Precision varies with grade, as is reflected in the scatter plots Figure A more direct comparison can be made by plotting the precision reflected by sample pairs having similar grade as estimated from the pair means.

One approach is to arrange the pairs in ascending order by pair mean, and to plot the standard deviation of the pair differences for a moving window hence, a group of pairs most similar in grade against the mean grade for that group.

In order to express the precision as a percent, as is usually done, the relative standard deviation of differences can be plotted against the mean grade, by dividing the standard deviation by the mean grade Figure It can be shown that the standard deviation of the pair differences differs from the standard deviation of the group of pairs sigma by the square root of two because there are twice as many measurements as there are pair differences.

Thus, in terms of stating what percentage of repeated assays on the same sample material would be expected to fall within the percentage shown on the graph, the line corresponds to 1.

Other defining lines of precision sometimes used are one sigma the 67th percent interval , 1. The important aspect of the comparison of the Chemex check assays of pulps and the rig duplicates is that the precision appears similar for both groups.

Because the rig duplicates incorporate sampling errors related to splitting the sample which the pulp re-assays do not, pulp duplicates should show better precision.

The fact that the precision for the pulps is slightly worse than that obtained for the rig duplicates is caused by the fact that the pulp assay comparison incorporates small biases between the two laboratories, i.

If a population of two assays performed by the same laboratory on the same pulp were compared, the estimated precision would be better.

An estimate of same-pulp, same-lab precision can be obtained using duplicate assays provided for some of the underground sampling Figure This comparison is only valid to the extent that the population of pulp samples for the underground samples is similar to the population for the drilling samples.

The comparison suggests that the overall precision is controlled by the last step of the process: Which approach is more effective at providing more reproducible gold estimates depends upon the distribution of gold particle sizes in a pulp, and details of the protocol, such as the screen size used, effectiveness of methods used to minimize heterogeneity before taking any sub-sample of pulp, and the total mass of sample fired.

The other noteworthy point is that precision worsens with increasing grade Figure This suggests that higher-grade samples are not composed of a larger number of gold grains of similar size to that found in samples having lower grade, but instead include larger gold particles.

MRDI selected the 30 sample pairs from the 50 pairs that have pair means greater than 0. This population was divided in half, with one-half containing the 15 samples with the lowest sample weights average weight 8.

The two groups showed similar average gold grades 0. Comparison of the average pair differences of the two groups did not show any significant difference using a t-test for unpaired data assuming equal variances.

The available data indicate the reverse-circulation sample mass collected is not the controlling factor in the obtained precision.

Precision appears acceptable above 0. A total of 48 standard reference materials SRMs and 20 fine blanks were submitted with a total of 1, project samples from the drilling.

Duplicate samples are used to determine the precision of the assays. The SRMs have a range of gold grades consistent with what is expected from project samples at Soledad Mountain.

Silver is not certified for these SRMs. The reassayed values, though consistently slightly higher in grade, confirmed the original assays for the project samples Table In order to provide a check on assay accuracy for silver and additional checks on gold, GQM selected a total of 50 pulps from project samples and submitted them to Inspectorate Labs in Reno, Nevada for gold and silver assays.

Five packets of three separate SRMs, obtained by AMEC from WCM Minerals in Vancouver and certified for both gold and silver, were inserted into the batch of pulps submitted to Inspectorate and show that the Inspectorate gold and silver assays are accurate.

The two check assays reporting greater than 1. Blank samples submitted with the Soledad Mountain project samples reported gold and silver less than five times the lower detection limit.

From the 72 pulp duplicate data provided, 34 reported average gold values greater than 0. Gold Check Assays between 0. Silver Check Assays between 0 and 30 ppm with outliers removed.

AMEC considers the ALS Chemex gold and silver assay data to be acceptably accurate and free of contamination in the sample preparation process.

Legacy drill data, in paper format, are stored in a container near the Soledad Mountain project site in Mojave, California. AMEC is of the opinion that from to sample security meets industry standards.

AMEC finds the sample preparation and assay methodology for gold and silver to be adequate for the Soledad Mountain gold and silver deposit. AMEC finds that the drill data adequately match the original records and that the database is acceptable for purposes of resource estimation.

Mineral Resources Development, Inc. MRDI of San Mateo, California did a detailed due diligence review of the procedures, assays and geological and resource models used by GQM and its consulting engineers between and This work involved statistical analyses, the evaluation of grade capping, the design of appropriate kriging techniques and setting criteria for the classification of resources.

MRDI submitted a final report with recommendations in May Assays audited by MRDI in June, were comprised of drill sample and underground sample assays available at that time.

Five percent of Au and Ag assays were randomly selected from the database in three groups described below and checked against assay certificates.

Data entries for samples were checked against assay certificates and sample map linens. This comprises a total of 17 errors in entries, or 3. However, only one error 0.

A list of all errors was provided to GQM staff. GQM staff confirmed in later documentation that corrections had been made.

It cannot be proven that the historical GFA gold assay data is inaccurate. Hypotheses for the large observed differences can be grouped into two categories: GQM samples have been stored on site.

If the difference between GQM and GFA results is a consequence of sampling, either or both sets of results may be biased. Any mining activity, including the collection of specimens, would render sampling of the remaining material biased.

Smaller sample mass GQM cut smaller channel volumes than GFA could affect the proportion of samples having a grade below detection, which could influence the grade estimation.

The following adjustment analysis is based on follow-up work conducted by MRDI in The intercept b is determined by substituting into the linear equation 1 the mean of the y population for y, the mean of the x population for x, m as calculated in 2 , and solving for b.

This technique provides a procedure for transforming the x here GFA population into one with the mean and variance of the y population.

The fit to the data is poor using all the data Table Top figure is A, and bottom figure is B. Figure courtesy of MRDI Removal of the three pairs of data having gold values exceeding in either x or y 0.

If cross-cut areas selected for the re-sampling study have higher or lower grades than the typical cross-cuts sampled by GFA, a selection bias exists.

If the population of re-sampled cross-cuts have higher grades than are representative of the population, then re-sampling them will typically provide results that are overall lower.

Conversely, if the cross-cuts selected have lower grades than are typically found for the population of original results, the re-sampling results would typically return higher values.

The size of the difference generated by a selection bias depends upon the severity of the selection process and the precision of the sampling. Where the selection process is severe for example, only the one cross cut with the very highest grade is selected for re-sampling and the precision poor available evidence indicates this is clearly so for GQM sampling and assaying the effect of selection bias can be very large.

Some imprecision and resultant selection bias could be introduced if GQM and GFA sample intervals are not precisely the same.

Both composite grade and grade-thickness were examined. A check for this type of selection bias can be performed by comparing the population of GFA cross cut gold assays that were re-sampled, to the population of all GFA cross cut results in the computer database.

The validity of this comparison is predicated upon the computer-entered historical GFA data being representative of the population of GFA underground sampling results.

The comparison shows the channels that were re-sampled had an average grade about half that of the average grade of all GFA channels in the database Figure Thus, the selection bias would favour the average grade of the samples from the re-sampling program being higher, which is not the case.

The bias between the original and re-sample results cannot be attributed to selecting higher-grade channels for re-sampling.

Grade-thickness calculations provide another method of comparing the new and historical results. To calculate these, the grade of each sample is multiplied by the length of channel cut for that sample.

These numbers are then summed for each cross-cut channel location. This is done separately for the original and re-sample data; making a pair of grade-thickness estimates for each cross cut location.

This can be plotted on a graph and subjected to the same Reduced Major axis fit as performed on the single-sample pairings. The comparison provides results similar to those obtained previously.

The GFA Au values should be adjusted using the formula: The adjusted values falling below 0. A total of 1, assay entries were randomly selected for drill holes DDH through GQ and checked against assay certificates.

A total of 40 entries for gold 2. GQM later provided documentation that 35 of the gold values represent averages of two assays. This reduced the gold entry error rate to 0.

A second selection was made of all assay entries that exceed 0. Twelve gold values 9. GQM later provided documentation that 10 of the values in the database were averages of two assays.

The remaining two entries were the second assay, which had not been averaged with the assay found by MRDI. This produces an error rate of 1.

No other systematic errors were found that would influence resource estimates. In , SRK randomly selected a total of 1, assay entries from the drill campaign and checked them against assay certificates.

A total of 2 entries for gold 0. AMEC checked the records for the GQM RC drilling in the database against original documentation and found the database to be acceptably error-free.

The error rate for the lithology records is 0. Collar coordinates for all drill holes were found to be acceptably accurate. Three of the drill holes used in the resource was surveyed down-hole.

Assays of twinned RC and diamond drill holes were compared to assess the spatial variations in gold grades and possible differences in assays resulting from different drilling methods.

Only qualitative comparisons are possible because of the small number of twinned drill holes. Adjacent intervals in hole GQ produced samples assaying 0.

Both holes targeted mineralization in the upper portion of the Golden Queen Vein. GQ produced samples assaying 0. Both holes encountered sporadic, low-grade mineralization less than 0.

The hole was positioned to test the Footwall Silver Queen Vein. The drill hole passed over the back of Cross-Cut UD Hole GQ produced samples assaying 0.

Cross-Cut UD produced samples assaying 0. This suggests good continuity of mineralization over the separation differences represented and consistency in sampling.

MRDI plotted decay and cyclicity plots for all RC drill holes in the database drilled before to check for down-hole contamination or grade spikes at rod changes.

The dataset used contains drill holes with a total of 51, assays. Of the intervals inspected, were not assayed and 6, had a grade of 0. Rock codes were incorporated in the analyses to identify changes in gold values that could be attributed to vein mineralization.

Decay and cyclicity plots revealed no abnormal changes in grade that could not be explained by abrupt changes in geology, such as a change from weakly altered rock to strongly mineralized rock.

AMEC finds that the drill data adequately matches the original records and that the assay, geology and collar survey database is acceptable for purposes of Mineral Resource and Mineral Reserve estimation.

Minerals of potential environmental concern include pyrite FeS2 , galena PbS and chalcopyrite CuFeS2 , which are present in minor amounts.

The rock types will be found in different areas and at various stages of the mine life. The primary rock types are of extrusive volcanic origin and are quite similar in chemical composition and are high in silica with little or no clay.

The interpretation of the ore body composition has changed since the early s and a significant portion of the pyroclastics has been reclassified as rhyolite.

Behaviour of rhyolite and pyroclastics has been similar in column leach tests with gold recovery for pyroclastics typically higher by 2.

The higher gold recovery for pyroclastics is explainable as pyroclastics are more porous and friable than the rhyolite. Also, the leach curves for rhyolite and pyroclastics are indistinguishable from one another.

Tests were done on bulk samples of rhyolite, pyroclastics, quartz latite and vein material obtained from surface and old underground workings between and This was considered to be the definitive test program to provide detailed information required for both the design of a four-stage crushing-screening plant and to complete a feasibility study.

The four-stage crushing-screening plant, the design of which was based upon the results of the - test programs, would be exceptionally costly to design, build and operate and a more cost-effective solution had to be found for a viable Project.

An alternative flow sheet was developed with a HPGR as the key comminution device in A series of HPGR and bottle roll and column leach tests was performed between and to confirm the flow sheet and to provide design criteria for the design of the crushing-screening plant.

The test work shows that the HPGR will have distinct advantages over conventional crushing and screening in preparing particles for heap leaching in this particular application as described in Section Column leach test data was reviewed for tests done from to This data should not be used to estimate percentage extraction as gold and silver were still being extracted from the ore when the tests were ended.

However, enough data had been collected by the end of the test to reliably perform a logarithmic regression analysis of the data and project what the extraction would be if the test had been continued for a total of days.

The regression analyses therefore put all of the column leach test results on a common day basis. The following conclusions can be drawn from an analysis of the tails obtained in the extended tests for rhyolite, quartz latite and pyroclastics in which the samples were crushed with a VSI and the tails obtained in the series of HPGR-based tests done from to Extended Leach Time - Test results show that extended leach time is a factor in achieving low tails.

The only long-term tests done were the VSI tests. The tails obtained in these tests were however not as low as the tails obtained in the HPGR tests with shorter leach times.

The conclusion is that extended leach time is a factor in achieving low tails but possibly of lesser importance when the HPGR is the comminution equipment.

Particle Size Distribution - A particle size distribution is the direct result of the crushing technology used to prepare the sample for leaching.

The analysis of test results shows that it is the particle size distribution for any particular test rather than a point value such as a P80 that is key to interpreting and understanding the results of the tests.

Particle size distributions were therefore plotted and analyzed for all tests performed from to In general, the VSI products are finer than the HPGR products in all size ranges, yet the tails from the HPGR tests are consistently lower than those from the VSI tests and this indicates that another factor such as micro-cracking is important to achieve low tails grades.

Understanding and monitoring of particle size distributions will be important in the commercial operation. Micro-cracking - An analysis of test results and microphotographs show that micro- cracks are developed in ore particles in the HPGR that allow relatively more gold and silver to be extracted than in the VSI tests.

The conclusion is that the formation of micro- cracks increases recovery and lowers tails. Specific Press Force - An analysis of the tails obtained in the HPGR-based column leach tests shows that tails and thus recoveries are affected by specific press force.

A higher specific press force gives a finer overall particle size distribution and leads to a greater density of micro-cracks and this directly affects tails and thus recoveries.

The conclusion is that the specific press force is the determining operating parameter. In Summary - The analysis indicates that it is reasonable to limit the determination of recoveries to the HPGR-based column leach tests and this places the emphasis on tests performed between and The recovery analysis is based upon tails obtained in HPGR-based column leach tests.

A plot of tails versus calculated head grades for the three principal ore types is shown in Figure The mineral reserve grades for rhyolite, quartz latite and pyroclastics and the cut-off grade that was used to delimit the low-grade resource model outlines are also shown.

Three curves that show the projected tails for the three ore types after days of leaching have been drawn as best-fit curves from the data points shown in Figure The curve for pyroclastics was drawn parallel to the curve for rhyolite with an allowance for recoveries from pyroclastics higher by 1.

The curve for quartz latite was drawn through the data point and parallel to the curve for rhyolite. The calculated recoveries based upon the tails analysis are shown in Table A plot of tails versus calculated head grades is shown in Figure Key information is shown with each data point.

The mineral reserve grades for the three ore types are also shown. It does not appear to be feasible to draw curves that will distinguish between the three ore types so a single curve has therefore been plotted.

It should be noted that the proportions of ore used in this recovery calculation for both gold and silver were based on earlier open pit plans and the proportions have shifted somewhat in the current plan.

However, the change is insignificant in terms of the calculated recoveries for gold and silver, and therefore the calculations have not been adjusted from the previous work.

The tails analysis confirms that the HPGR is a viable option for preparing ore particles for heap leaching for the Project.

A tails target for gold can be calculated from the recovery analysis for gold and this is a weighted average tail of 0. Note that current silver production is based upon a silver recovery of Silver recovery of This is of significance both in guiding sampling programs for leach test work and as it allows the use of the information provided by such leach test work to be applied to recovery analyses and to project production of gold and silver in a commercial operation with confidence for all areas that will be mined.

It is not expected that these concentrations of minor metals will interfere with zinc precipitation in the Merrill-Crowe process. Refer to Section It is expected that shipments will be made every 7 days.

The geologic and resource model are based on all drilling through the drill campaign. The cut-off date for the assay database was 31 December and no new data has been added since that time.

The model extends 10, ft 3,m in the east-west direction, 10, ft 3,m in the north-south direction, and 2, ft m in the vertical direction.

The block model was created with a constant block size of 20 ft x 20 ft x 20 ft 6. GQM carried out an aerial survey of the Project area in and produced a topographic map with 5 ft contour intervals in the Project area using California State Plane Zone 5 coordinates as described in more detail in section 9.

This resource estimate is an update from the previous estimate completed by SRK in to include the data from the drilling program.

The database consists of surface and underground drill holes samples as well as underground channel samples. All underground channel samples were labelled and treated as drill holes.

The database includes 1, reverse circulation, diamond core holes, and underground channel samples totalling , In , 20 holes 6, feet were drilled and concentrated in two structural zones on the northwest and northeast ends of the Project.

Drill holes were infill and step out holes in areas that are scheduled for early production. The model setup parameters used for the model are unchanged from and are shown in Table The computer model constructed for the Soledad Mountain deposit was based in part on the geological interpretation lithologies developed by the GQM staff in and on the structural Szone interpretation developed by AMEC in Rock types, high grade zones, low grade envelopes, areas of stope, and zones of internal waste were delineated on cross-sections and bench plans and then loaded into the model.

Plan block maps were plotted from the model to check the block code assignments and corrections were made where necessary.

Polygons were first drawn around a minimum of two consecutive 10 foot composites with grades greater than or equal 0. Internal to the 0. Material within the 0.

The cross section grade polygons were reconciled in plan at the toe elevation for each 20 ft bench. Bench grade polygons then were extruded upward 20 feet to create 3-D grade domain solids in order to code the composites and blocks to be used for resource estimation.

Proper assignment of the grade domain code was validated by comparing composites and blocks in cross sections and bench plans to the grade shells on the computer screen.

The volume of the grade domain solid was compared to the volume of tagged blocks within the grade domain and shown to be less than one percent difference.

Each record in the drill hole database has a field for drill hole name, from and to footage, interval length, Au and Ag fire assay grades, rock type and structural zone Szone.

The rock type codes differentiate the mapable lithologies Table 14 2. Common vein systems with similar strike and dip directions were grouped together to form a Szone so that they may be statistically analyzed as a single vein system Table Soledad Mountain assay data was composited on 10 foot down-the-hole intervals beginning at the collar since model domains were based on grade and not lithology.

Composites with a length of less than five feet were not used in grade interpolation. AMEC confirmed that the composites were properly calculated by manually compositing a few selected assays and comparing composite values to MineSight results.

To better understand the distribution of gold and silver mineralization, gold and silver statistics were categorized by cut-off grade.

The difference in gold and silver grades by rock lithologies is shown in Figure Rock types 1, 2, 6 and 13 correspond to pyroclastics, quartz latite, rhyolite porphyry and flow-banded rhyolite respectively.

The figures illustrate that lithology is not a major contributing factor for gold or silver mineralization. The Mineral Resource impact of adjusting GFA gold assays indicates that approximately , ounces of gold was removed from the Mineral Resource.

However, approximately , ounces of silver was added to the Mineral Resources due to changing selection assignments of the silver composite from high-grade to the low-grade zones.

Gold recoveries vary by rock type and are listed in Table Silver recoveries are the same for all rock types. Gold equivalent AuEq calculations were calculated using the following formulas depending on rock type metallurgical recoveries.

Colour coded gold-equivalent grades for a Bench are shown in Figure In early , McClelland Laboratories, Inc. A total of individual measurements were made to obtain averages for the 70 samples.

The following rock types were represented: Samples were proportioned in nearly equal numbers for the three major lithological types pyroclastics, quartz latite and rhyolites.

The average densities obtained by MLI for each rock type are shown in Table MRDI compared density certificates to core logs and sample locations, and determined that the density tests are representative of un-mineralized material and mineralized rock with gold values up to 0.

Composites used to interpolate low-grade zones had gold and silver assays capped. Gold and silver assays were not capped prior to compositing.

No grade restrictions on composites were used from 0 to 20 ft. Silver grades were not capped from 0 to 20 ft. AMEC developed and reviewed variograms using only composite data within the grade shells by Szone domain.

With the exception of Szone 1 all dip components dip to the northeast. Szone 1 dips southwest. The gold and silver experimental variograms were modeled using two nested spherical schemes and a nugget variance calculated from the down-the-hole variograms where the short-range variability is better defined.

Prior to modeling the gold and silver assays were combined to form gold equivalent values section Gold, silver and the gold equivalent grades were individually composited in 10 ft lengths down-the-hole.

These composites were used as the basis for the interpretation of high-grade and low-grade zones. The interpretations were completed on approximately ft spaced vertical sections on two different grids Figure The sectional interpretations were translated to 20 ft bench plans, re-reconciled, digitized and coded into the block model.

Zones greater than 0. No high-grade zones exist outside of the low-grade zones. Visual inspection showed that using a 0.

The low-grade zone has a minimum composite-length of 20 ft, two 10 ft composites. Blocks with centroids falling within the outline of the low-grade zone were coded as low-grade.

Subsequently the high-grade and low-grade outlines were used to assign the percentage of high-grade and low-grade to each block.

During resource estimation the percentage of high- and low-grade are used with their respective interpolated grades to calculate the whole block grade.

Internal waste was weight-averaged into the entire width of the mineralized zone and the grade of the zone was reduced accordingly.

Waste intervals in excess of 20 ft wide were drawn as separate blocks. A single resource model was generated using numerous estimation passes.

Separate low-grade and high-grade passes ensure smearing of high grade is minimized. The final model included seven separate passes detailed in Table Blocks outside the limits of the grade shells were not interpolated and assumed to be waste with grade of zero for gold and silver.

Waste densities were assigned based on rock type. AMEC calculated the confidence limits for determining appropriate drill hole spacing for Measured and Indicated Resources.

Mineral resources were classified as Measured when a block is located within 60 ft to the nearest composite and two additional composites from two drill hole are within 85 ft.

Drill hole spacing for Measured Resources would broadly correspond to a 75 x 75 foot grid. Mineral resources were classified as Indicated when a block is located within ft to the nearest composite and one additional composite from another drill hole is within ft.

Drill hole spacing for Indicated Resources would broadly correspond to a x ft grid. Visual checks on cross section and plan show good geological and grade continuity at this distance.

However, tighter drill grid spacing may be required to define high grade zones, ore and waste contacts, structural offsets, and to define final pit limits.

AMEC is of the opinion that continuity of geology and grade is adequately known for Measured and Indicated Resources for grade interpolation and mine planning.

Blocks were classified as Inferred Resources if they were located within ft of a composite within the grade shell.

The gold and silver block model grades were validated visually against drill holes and composites in section and plan view and block model grades compare well with the composite grades.

Local bias checks by comparing the means of the OK grade to the NN grade for blocks identified as potentially being Measured and Indicated Resources.

No potential biases were noted in the model from the validations. The degree of smoothing in the kriged block model estimates was evaluated using the Discrete Gaussian or Hermitian Polynomial Change of Support method described by Journel and Huijbregts, Mining Geostatistics, Academic Press, The NN grades are adjusted to account for the change in support as one goes from smaller drill hole composite samples to larger blocks in the model, while maintaining the same mean as the original declustered composites.

Clay on behalf of certain members of the Clay family and associated entities collectively, the " Clay Group ". In the Proposal Letter, the Clay Group proposed to acquire all of the outstanding equity interests of Golden Queen Mining Company, LLC held indirectly by Golden Queen in exchange for i the surrender of the notes and all indebtedness held by the Clay Group under the Second Amended and Restated Term Loan Agreement dated as of November 21, , as amended, ii the surrender of all common shares, warrants and options of the Company held by the Clay Group , iii a cash payment, and iv other good and valuable consideration.

A special committee, composed of independent directors of the board in conjunction with legal and financial advisors will evaluate the proposal as well as explore potential alternatives to the proposal.

Investors are cautioned that any discussions with the Clay Group are preliminary in nature and the Company will issue a subsequent news release only should an agreement be reached in respect of the Clay Group proposal or any alternate transaction.

Caution with Respect to Forward-looking Statements: Except for statements of historical fact contained herein, the information in this press release includes certain "forward-looking information" or "forward-looking statements" within the meaning of applicable Canadian and U.

Forward-looking statements can generally be identified by the use of forward-looking terminology such as "will continue to", or similar terminology.

Forward-looking statements include but are not limited to, statements related to any proposal for a transaction resulting in a decision to proceed with a transaction or any alternative transaction.

Any forward-looking statement made by the Company in the press release is based only on information currently available to us and speaks only as of the date on which it is made.

The Company does not undertake to update any forward-looking information that is contained or incorporated by reference herein, except in accordance with applicable securities laws.

E-mail Password Remember Forgot password?

Golden queen mining - me, please

DE AG - boerse. Keine Nachrichten im Zeitraum eines Jahres in dieser Kategorie verfügbar. Nur noch wenige Tage: Orderbuch weitere Times and Sales. Online Brokerage über finanzen. Verlustvermeidung als zentraler Schlüsselfaktor für langfristigen Anlageerfolg. Ifo-Geschäftsklima fällt auf Dreijahrestief - 'Wirtschaft in Abschwung'. Diese 20 Aktien schütten seit über Jahren Dividende aus. Momentan liegen keine aktuellen Meldungen vor. Das Beste aus zwei Welten: Gutes Weihnachtsgeschäft lässt Hugo Boss hoffen - Aktie steigt deutlich. Alle Nachrichten, die dieses Unternehmen betreffen. Problem mit dieser Seite? Jetzt in den Cannabis-Aktien-Index investieren! Zur klassischen Ansicht wechseln. Tesla streicht Stellen - Schwächerer Gewinn im vierten Quartal. Zertifikate auf Golden Queen Mining. Verlustvermeidung als zentraler Schlüsselfaktor für langfristigen Anlageerfolg.

Paypal freunde werben: agree, schladming nachtslalom 2019 topic This phrase

Golden queen mining 128
Stargames real online casino Casino salzburg webcam
Golden queen mining Derzeit keine aktuellen Daten verfügbar. SMA Solar zuversichtlich für - Aktie legt kostenlose aufbauspiele pc zu. Eventuell finden Sie Nachrichten, die älter als ein Jahr football unentschieden, im Archiv. Kurssprung bei IBM nach Quartalszahlen. Ifo-Geschäftsklima fällt auf Dreijahrestief - 'Wirtschaft in Abschwung'. Lungenexperten stellen Feinstaub- und Stickoxid-Grenzwerte infrage. Verlustvermeidung als zentraler Schlüsselfaktor für langfristigen Anlageerfolg. Kontakt - Impressum - Werben em halbfinale live stream Presse mehr anzeigen. Positive Studie hilft Lufthansa im schwächeren Dax. Kontakt Impressum Werben Presse Sitemap.
Book of ra fГјr pc vollversion download Balthazars wild emporium gold vial casino
Golden queen mining Gimnàstic de tarragona
Augsburg schalke live stream Gutes Weihnachtsgeschäft lässt Hugo Boss hoffen - Aktie steigt deutlich. Ich mache dich über Nacht berühmt, und wenn es ein Jahr dauert. Kontakt - Impressum - Werben - Presse mehr anzeigen. News Analysen Kursziele myNews. Momentan liegen keine aktuellen Meldungen vor. Zum Unternehmen Fc bayer logo Queen Mining. DE AG - boerse.
Golden queen mining Spila

Minor quantities of siliceous vein material 0. Extensive test work and process development work done on the Project ore types from to show that these ores are readily amenable to heap leaching provided the material is crushed to relatively small sizes.

The test work for a total of 45 column leach tests is well documented and the test results have been used in a number of feasibility studies.

A series of tests using a high-pressure grinding roll HPGR and bottle roll and column leach tests was performed between and to confirm the flow sheet and to provide design criteria for the design of the crushing-screening plant.

The test work shows that the HPGR will have distinct advantages over conventional crushing and screening in preparing particles for heap leaching in this particular application.

Tests completed in were performed on a low-grade and a high-grade rhyolite sample to test the range of grades that is expected in the commercial operation.

The test on rhyolite with a lower head grade in the 0. No new column leach tests have been done on pyroclastic ore since the tests. Recoveries for gold and silver are based upon tails obtained in HPGR-based column leach tests.

The recovery analysis for gold and the recovery analysis for silver are described in detail in subsection The projected recoveries based upon the tails analysis are shown below.

An extensive characterization program using bottle roll tests on reverse circulation drill cuttings was completed by an independent consulting engineer in The deposit was divided into six areas, four rock types and three vertical zones for this program and 46 standard bottle roll tests were performed.

An analysis of the results showed that there was no discernible difference in metallurgical response for a particular rock type from area to area and from strata to strata.

Allowance has been made for 1. Geologic and grade shell polygons were created in cross-sections and level plans and used to create three-dimensional solids.

The block model was assigned two mineralized domains, four rock type domains and five structural domains. Three tonnage factors were assigned based on rock type: Composites were created on 10 ft.

A minimum of two composites were required to develop a low-grade grade shell polygon. The influence of high-grade gold and silver composites on grade estimation was confined by high-grade shells and range-restricted by the use of outlier restrictions.

Ordinary Kriging was used to estimate gold and silver except for one structural zone which used Inverse distance.

Interpolation of grade into the blocks was conducted on three passes based upon increasing search distances out to ft.

Gold and silver grades were estimated separately by structural domains within low-grade mineralized solids and within high-grade mineralized solids.

Gold and silver block model grades were validated visually against drill holes and composites in section and plan. A nearest-neighbour block was based on 20 foot down the hole composite.

Grade profile plots were created on the 20 ft. Measured and Indicated resource block and no estimation biases were noted. Factors which may affect the conceptual pit shells used to constrain the mineral resources, and therefore the Mineral Resources include changes to the following assumptions and parameters: Mineral Resources are reported in Table 1.

Mineral Resources take into account geologic, mining, processing and economic constraints, and have been confined within appropriate Lerchs- Grossman pit shells, and therefore are classified in accordance with the CIM Definition Standards for Mineral Resources and Mineral Reserves.

Mineral Resources that are not Mineral Reserves do not have demonstrated economic viability. Mineral Resources are reported at a 0.

Mineral Resources are reported within a conceptual pit shell that has been merged with the Mineral Reserve pit. Rounding as required by reporting guidelines may result in apparent summation differences between tons, grade and contained metal content.

Tonnage and grade measurements are in US and metric units. Grades are reported in troy ounces per short tons and in grams per tonne.

Mineral zones were shaped manually with a cutoff grade of 0. Norwest accepted the geological and block model provided by AMEC and relied upon these in the preparation of the mine plan for the Project.

The mine plan was based upon a series of Lerchs Grossman pit optimization studies. Mineral Reserves are reported in Table 1. The operation will be an open pit operation.

Wheel loaders and haul trucks with a capacity of 90 tonnes ton will be used as the primary mining equipment. Smaller equipment will be used for pioneering access roads, mining narrower benches, and final ore extraction at the bottom of the various mining phases.

Support equipment such as a grader, a water truck and tracked dozers and a wheel dozer will be used for road and bench maintenance, dust control and work in the waste rock disposal areas.

The operation has been designed to mine approximately 5. Ore will be fed to a crushing-screening plant. The crushing-screening plant includes a primary and secondary cone crusher, primary screen, a high-pressure grinding roll HPGR as the key comminution device and the required ore chutes and conveyors.

Crushed and agglomerated ore will be stacked on two heap leach pads. A dilute sodium cyanide solution will be used to leach gold and silver from the ore.

Leach solutions will flow to the toe of the heap and from there to a pump box. The Merrill-Crowe process will be used to precipitate gold and silver from the pregnant solution.

The design, construction and operation of the heap leach facilities are described in Section Services such as a hospital, ambulance, fire-protection, garbage and hazardous waste disposal, schools, motels and housing, shopping, airport and recreation are available in Mojave and its surroundings.

Telephone and internet service are available on site. Infrastructure is described in Section 19 and this includes both on-site and off-site infrastructure.

Off-site infrastructure such as the availability of power and a backup water supply are described in sub-section The gold and silver will be sold by Johnson Matthey Inc.

That is the conventional and generally accepted procedure for dealing with gold and silver produced by a smaller heap leach operation such as the Project.

GQM has therefore not entered into any agreement for selling refined gold and silver. GQM has also stated in its public documents such as the Form K dated March 29, that it is not expected that GQM will hedge any of its gold or silver production.

Refer to sub-section 1. Capital costs are described in sub-section Engineering has been substantially completed for all major components of the Project and this includes the design of the crushing-screening plant with the HPGR as the key comminution device by a Vancouver-based consulting engineering firm.

Capital cost estimates are based upon quotes for construction from a number of key vendors and contractors based in southern California.

The bulk of the sustaining capital will be required for construction of the second and third stages of the heap leach pad and for major equipment replacement.

Operating costs are described in sub-section Detailed operating cost estimates have been prepared with information provided by independent consulting engineers and vendors of services and supplies such as diesel fuel and explosives, reagents such as cement and sodium cyanide and operating supplies and spare parts for both the major mining equipment and support equipment and equipment in the various processing facilities.

There is no allowance for escalation or inflation in the operating cost estimates from the third quarter onwards. Operating costs for the life of the mine are summarized in Table Note that an allowance for unallocated costs has been added to the operating cost estimates in the cash flow model.

The pre-tax cash flow analysis is described in sub-section This analysis includes detail on a number of items that make up the cash flow model.

The base cash flow analysis is done on a constant United States dollar, pre-tax, stand-alone project basis. The Project has an indicated internal rate of return IRR on capital employed of The trailing month average precious metals prices are accepted by the U.

Securities And Exchange Commission when reporting mineral reserves. GQM expects to develop a by-product aggregate and construction materials business once the heap leach operation is in full production, based on the location of the Project in southern California with close proximity to major highways and railway lines.

The source of raw materials will be suitable quality waste rock specifically stockpiled for this purpose. The waste rock can be classified into a range of products such as riprap, crushed stone and sand with little further processing.

Test work done in the s confirmed the suitability of waste rock as aggregate and construction material. GQM also plans to process and sell leached and rinsed residues from the heap leach operation for a range of uses to local and regional markets.

It is intended that these products will be sold over an extended mine life beyond the current planned gold and silver production periodbut no contributions from the sale of such products will be included in the cash flow projections until long term contracts for the sales of these products are secured.

The Company now has final approvals in place for the Project. The Company is therefore continuing with the design of the Phase 1, Stage 1 heap leach pad and the associated site drainage plans, design of a number of site grading plans, design of the sub-station required for the distribution of power to the operating facilities and all of these designs are being done for construction.

Once a production decision is made, the Company will need significant additional financing to develop the Project into an operating mine.

The Company is evaluating various financing options for the Project and these may be combined:. The Company estimates that construction can be completed in approximately fifteen months once project financing has been secured.

The target for the start of production is therefore the first quarter of The Project utilizes standard mining and processing methods which are well understood in the region.

The development plan follows a reasonable timeline for construction and production ramp-up. The Project has a robust cash flow with a relatively low sensitivity to increases in the capital and operating costs.

There is sufficient area within the Project to host an open pit mining operation including any proposed open pit, waste dumps, and leach pads.

The current mine plan includes mining and dumping activities beyond areas currently within the permitted limits. Norwest understands that GQM owns or is in negotiations with landholders to secure access however failure to do so could affect the current mine plan.

The current pit configuration is constrained by permit backfill requirements rather than economic strip ratio limits. The potential to expand the mineable ore tonnage exists if the constraints related to backfilling can be mitigated.

The project geology and mineralization is sufficiently well established and understood to support mineral resource estimation.

Work programs included geological mapping, geochemical sampling, channel sampling, petrography, mineralogical studies, and drilling. Drill data collected by GQM meets industry standards for exploration of gold and silver deposits.

No material factors were identified with the drill data collection that could affect Mineral Resource estimation. Drill hole sampling employed by GQM is in line with industry norms.

Sample preparation for samples that support Mineral Resource estimation has followed a similar procedure for the GQM programs.

The GQM drill samples were analyzed by reputable independent, accredited laboratories using analytical methods appropriate to the gold and silver concentration.

Drill sampling has been adequately spaced to first define, then infill, gold and silver anomalies to produce prospect-scale and deposit-scale drill data.

Drill hole spacing varies with depth. Drill hole spacing increases with depth as the number of holes decrease and holes deviate apart.

Sample data collected adequately reflect deposit dimensions, true widths of mineralization, and the style of the deposits.

Gold grades were estimated inside a grade shell using primarily ordinary kriging and inverse distance. Mineralization was confined within a conceptual open pit shell, which used economic parameters developed by Norwest from first principles.

AMEC has reviewed the economic parameters used in the Mineral Resource and is of the opinion that they are reasonable for supporting Mineral Resource declaration within a conceptual open pit shell.

As noted in Section 1. The Commission accepted the project plan subject to a number of Conditions of Approval.

A number of these conditions specifically address issues related to reclamation of the property including backfilling and restoration to approximate pre-mining topography.

The pit shells used as a basis for this feasibility were selected based on consideration of both economic and waste volume considerations with the goal of developing pit configurations which balanced ore tonnage against waste quantities.

In order for the current mine plan to meet all the conditions laid out by the County, approximately 19 million tons of waste rock must be sold as aggregate and removed from site prior to final reclamation.

In addition, all the leached residues must be either permitted to remain in place or be sold as aggregate. If this quantity cannot be sold, the necessity of handling this additional volume as part of the reclamation plan will affect the overall ore tonnage that can be mined at site.

While no costs or revenues associated with aggregate production using this material, have been included in the Project economic analysis, removal of these materials is an integral component of the integrated mining and backfilling plan.

If these quantities of material remain onsite, it will require revision of the mining plan in order to meet the backfill requirements which could reduce the life of the heap leach operation by up to 5 years.

Norwest has worked with GQM to develop a scenario which limits the effect of this on the mine life and GQM has had promising discussions with a local aggregate contractor regarding the saleability of the waste rock and leached residues into the regional market.

However, there is still a potential risk that meeting the requirements of the Conditions of Approval could affect the overall mine life.

Norwest understands that GQM owns or is in negotiations with landholders to secure access and to expand the permit boundary however failure to do so could affect the current mine plan.

GQM engaged Norwest Corporation Norwest and AMEC to prepare an updated NI compliant Technical Report to assess mineral reserves for the Project as part of an independent feasibility study based upon technical work and engineering designs completed up to monthend May The results of the Norwest study were disclosed in a press release on September 6, Norwest has used this model as a basis for pit optimization and the development of the mining plan in the feasibility study.

Norwest has incorporated the findings of many of the engineering and technical studies commissioned by GQM as these studies have been completed by qualified independent third parties.

These studies are referenced in this feasibility report and a list of all references is included. Where revisions have been made to previous work they are noted example: Hertel inspected surface geology, drill hole collars, drill core and RC chip trays, logging procedures, sampling protocols, proposed open pit location, and sites amenable for locating infrastructure.

Horton observed the proposed pit, dump and leach pad areas. He reviewed the site configuration to confirm the reasonableness of planned pre-development and mining assumptions.

Effective date of the database closeout for Soledad Mountain for the purposes of estimation of Mineral Resources: There has been no material change to the scientific and technical information on the Project between the effective date of the Report, and the signature date.

Reports and documents listed in Section 3 Reliance on Other Experts and Section 28 References were also used to support preparation of the Report.

Additional information was provided by GQM personnel where required. AMEC and Norwest QP have relied upon and disclaim responsibility for information derived from reports pertaining to mineral tenure, surface rights, water rights, environmental approvals and permits.

The following document was referred to with respect to mineral ownership and royalty rights:. Detail is provided in Section 4.

This information is used in Sections 4. The following document was referred to with respect to current surface and water rights:. Independent California legal counsel, Paul Singarella, Esq.

An assessment of surface rights and water rights is provided in Sections 4. The AMEC QP has fully relied upon and disclaims responsibility for information provided by GQM staff and experts retained by GQM for information relating to the environmental studies performed and approvals and permits obtained for the Project.

The following documents were referred to with respect to environmental studies, approvals and permits. The Kern County Planning Commission formally considered the Project at its regularly scheduled meeting in Bakersfield on April 8, Detail is provided in Section 21 of the Report.

This information was used in Section 14 of this report. The Project is located approximately 5 miles south of the town of Mojave. California City lies approximately 10 miles northeast of Mojave.

These former operating mines are located within a radius of five miles of the site. GQM controls approximately 2, acres 1, hectares of land in the area, consisting of private fee land and patented lode mining claims and millsites and federal lands unpatented mining claims and millsites administered by the BLM, collectively referred to as the Property.

The total area required for the Project, which is surrounded by an Approved Project Boundary, is approximately 1, acres hectares in size.

The actual area that will be disturbed by mining, waste rock disposal, the construction of the heap leach pads and the heap and the facilities will be approximately acres hectares in size of which approximately acres hectares will be reclaimed during and at the end of the mine life.

GQM holds or controls via agreement 33 patented lode mining claims, unpatented lode mining claims, 1 patented millsite, 12 unpatented millsites, 1 unpatented placer claim and acres of fee land.

A summary of the land held or controlled by GQM is shown in Table 4. As noted above, additional land is held by GQM which may be incorporated into the project area in the future if required.

The land status is shown in Figure 4. GQM holds or controls the properties under mining leases with 53 individual landholders, two groups of landholders and 2 incorporated entities.

Contact information for the landholders is available on file at the GQM offices in Vancouver. Length of the agreements varies and the current approach is to have agreements extend to the year GQM believes that all the land required for the Project either has been secured under a mining lease or is held by GQM through ownership of the land in fee or via unpatented mining claims.

GQM executed land purchases or entered into agreements from onwards, and is continuing to add to its land position in the area.

The report was dated September 6, and was updated to April 26, This title review was done to provide confirmation that titles remained valid.

A formal title review was again done by an independent landman, Sylvia Good, in May Royalties paid to third party landholders and the State are shown as line items in the Project cash flows in Table There are multiple third party landholders and the royalty formula applied to mine production varies with each property.

This leads to a complex set of royalty calculations. A standard net smelter return per ton formula has been applied to the cash flows to calculate the estimated royalty payable.

State royalties for payable gold and silver have been applied at the following rates:. Bureau of Land Management regulations regarding surface disturbance and reclamation require that a notice be submitted to the appropriate Field Office of the Bureau of Land Management for exploration activities in which five acres or fewer are proposed for disturbance 43 CFR A Plan of Operations is needed for all mining and processing activities, plus all activities exceeding five acres of proposed disturbance.

A Plan of Operations is also needed for any bulk sampling in which 1, or more tons of presumed ore are proposed for removal 43 CFR The BLM also requires the posting of bonds for reclamation for any surface disturbance caused by more than casual use 43 CFR The following are key points:.

California does not regulate the use of groundwater under a state-wide administrative permit program;. A land holder with land overlying groundwater does not need to have the right to pump water verified before the land holder can drill wells and pump water;.

Groundwater rights rules include a hierarchy of rights under which the rights of the overlying users are paramount;. When a groundwater basin is in an overdraft condition, competing water uses will frequently initiate judicial proceedings to test the claims of competing rights;.

Groundwater rights can be determined, and pumping limited, through court adjudications;. The Project will draw groundwater from the Fremont Valley groundwater basin and this basin is separated from other basins by significant geological features;.

Ongoing monitoring will be required to ensure that the groundwater immediately underlying the Project is not in an overdraft condition;.

An adjudication of groundwater resources in the Antelope Valley is ongoing and this also needs ongoing monitoring to confirm that the Fremont Valley groundwater basin is not drawn into this adjudication and.

Water required for the Project and alternative water supplies are described in Section This is the current estimate for reclamation of historical disturbances on the property and this is reassessed annually.

GQM prepared detailed cost estimates for ongoing reclamation and reclamation at the end of the life of the mine and these cost estimates were included in the Application for a revised Surface Mining Reclamation Plan.

GQM will provide the necessary financial assurance as required by the regulatory authorities. Cost estimates for site reclamation are included in the discussion of the project economics and operating costs.

A number of additional approvals and permits will be required as project development proceeds, as detailed below:.

Newly implemented security requirements make contract blasting a preferred option and a contract blasting service will be used.

The contractor will be required to obtain the necessary approvals and permits. Conditions GQM must meet both before the start of construction, during operations and after operations have ended are set out in the Mitigation Measures Monitoring Program and Conditions of Approval.

The pit shells used as a basis for this feasibility study were selected based on consideration of both economic and waste volume considerations with the goal of developing pit configurations which balanced ore tonnage against waste quantities.

Refer to sub-section Access also exists from the south via Mojave Tropico Road, an existing paved county road. Rainfall events tend to be short-lived and of high intensity.

Exploration is possible year round, though snow in winter and wet conditions can make travel on unimproved dirt roads difficult. It is also expected that mining operations will be conducted year round.

Off-site infrastructure such as the availability of power and a backup water supply is described in sub-section The Soledad Mountain gold-silver deposit is hosted in a volcanic sequence of rhyolite porphyries, quartz latites and bedded pyroclastics that form a large dome-shaped feature, called Soledad Mountain, along the margins of a collapsed caldera.

The deposit is located on the central-northeast flank of Soledad Mountain. The mountain has a domal form that is a reflection of an original, dome-shaped volcanic center.

The Project is located on the flanks of Soledad Mountain. Elevations range from 4, ft. The topographic relief ranges from moderate to steep.

Vegetation is typical of the Basin and Range physiographic province. The lower slopes of Soledad Mountain are covered by sagebrush, grass, and various desert shrubs.

Fauna that have been observed in the Project area are typical of those of the Great Basin area. At the meeting, the Commission, consisting of a panel of three commissioners, unanimously approved the Project.

GQM believes that the land required for the Project, which has been included within the Approved Project Boundary, has either been secured under a mining lease or is held by GQM through ownership of the land in fee or via patented and unpatented lode mining claims or millsites.

Detail on the SEIR is provided in sub-section The proposed project site is located in an area with access and services that can support the development and operation of the configuration and scale currently planned by GQM.

This soon led to the discovery of the Exposed Treasure vein on the same hill. Later that year gold was found on Tropico Hill, in the Rosamond Hills.

The first mill was built at the Exposed Treasure Mine in This mill had 20 stamps and a cyanide plant. Construction of other mills followed rapidly - the Echo mill in with 10 stamps, the Queen Esther mill in and the Karma mill in with 20 stamps.

Of these properties, the Exposed Treasure, with production equivalent to 3, kg or , oz of gold, was the largest; the Queen Esther, with production equivalent to 1, kg or 62, oz of gold, was second and the Karma third with production equivalent to 1, kg or 37, oz of gold.

The last of these early mills was shut down in when the readily available ore was exhausted. Lessees looking for a new area to work George Holmes found some float that led to the discovery of the Silver Queen vein system on Soledad Mountain in Claims were staked and exploration was done.

The property was sold to a syndicate Golden Queen Mining Co. GFA in January GFA did extensive exploration on the property in the next few years, which resulted in a large increase in ore reserves.

The Golden Queen vein was also discovered at that time. During this period of exploration on the Golden Queen vein, an area south and west of the Golden Queen vein was also explored and a large vein was discovered on the Starlight claim.

The Soledad Extension vein, west of the Starlight vein was also discovered. The Lodestar Mining Co. Ore was extracted from the Silver Queen, Golden Queen, Soledad, Queen Esther and Karma veins plus ore was custom-milled from other properties in the area.

Tailings from smaller, historical mining operations were also retreated. Although records are incomplete, it is estimated that 1.

The mine did not resume production after the war although some exploration and development work was done. GFA returned the property to its former owners in and the company was dissolved.

It is estimated that a total of 8, ton of ore was mined in the Project area by lessors in the early s.

These former operating mines are located within a 5 mile radius of Soledad Mountain. Soledad Mountain is located within the Mojave structural block, a triangular-shaped area bounded to the east by the northwest-trending San Andreas Fault and to the north by the northeast-trending, Garlock Fault Figure 7.

Of these deposits, only Soledad Mountain is in the Project area. A regional geologic map is shown in Figure 7. McCusker mapped Soledad Mountain in detail and defined the major stratigraphic and structural features of the volcanic complex present there.

Volcanics at Soledad Mountain comprise coalescing intrusive-extrusive domes, flows and pyroclastics. This volcanic center presumably overlies Cretaceous quartz monzonite, such as is exposed at the adjacent Standard Hill mine, although drill holes have not penetrated basement rocks at the deposit.

Age dates of The lower-most volcanic unit penetrated in drilling is an early Miocene quartz latite flow that strikes northwest and dips at low angles to the northeast.

Flow-banded rhyolites intrude and overly the lower pyroclastic unit. The rhyolites appear to have flowed out along a northwest-trending, high-angle vent coinciding generally with the center of the deposit and then north-eastward away from the vent.

Coarse- grained, pyroclastic breccias occur locally over the flow-banded rhyolites along the axis of the vents. These pyroclastic rocks likely represent laterally discontinuous zones of vent eruptions and collapse breccias that formed after the main pulse of rhyolite extrusion.

The youngest volcanic unit is a massive, quartz-eye rhyolite porphyry of middle Miocene age. This unit is present over most of the southwest portion of the property.

The rhyolite porphyry forms the core of the volcanic complex, intruding and displacing previous volcanic units south of the deposit center.

Emplacement of the porphyry may have been controlled by a northwest fault that now coincides with the Soledad Extension Vein.

GQM has classified volcanic lithologies into four units Figure 7. At least 14 separate veins and related vein splits occur at Soledad Mountain.

Veins generally strike N40W and dip at high angles either to the northeast or to the southwest. Mineralization consists of fine-grained pyrite, covellite chalcocite, tetrahedrite acanthite, native silver, pyrargyrite, polybasite, native gold and electrum within discrete quartz veins, veinlets, veinlet stockworks and irregular zones of silicification.

Gangue minerals include quartz, potassium feldspar, ferruginous kaolinitic clay, sericite, hematite, magnetite, geothite and limonite.

Veins formed by the process of intense alteration of volcanic rocks and by deposition of quartz and sericite-rich material in fault and fracture zones Figure 7.

The effect is to have a core vein of 1 ft. The boundary between mineralized and non-mineralized material must be determined by assay.

Important veins Figure 7. Flat Ore is a complex zone of veins and stockwork mineralization that is from ft. It may have been produced by post-ore faulting of higher levels of the Starlight Vein.

Gold grades greater than 0. Sheeted vein systems and stockwork veins decrease in grade laterally outward from core veins.

Silver to gold ratios vary from 1: A consulting geologist, working for GQM, studied spatial variations in silver to gold ratios throughout the vein systems GQM internal report, April Silver to gold ratios were found to increase generally with depth from about The district average ranges from A map showing the surface trace of the various veins was completed on the property over a number of years in the s.

A copy of the open pit layouts superimposed on the vein trace map is shown in Figure 7. The information is available in the Norwest offices in Vancouver.

Exploration and exploration potential are described in Section 9. Knowledge of the deposit settings, lithologies, and structural and alteration controls on mineralization is sufficient to support determination of Mineral Resources and Mineral Reserve estimation.

The mineralization style and setting of the Project deposit is sufficiently well understood to support determination of Mineral Resources and Mineral Reserve estimation.

Prospects refer to Section 9. Gold mineralization occurs in low sulfidation style, quartz adularia veins and stockworks that strike northwest.

Veins formed by the process of alteration of volcanic rocks by convecting groundwaters with the deposition of quartz and sericite-rich material in fault and fracture zones Figure 7 4.

The total sulfide content is one percent or less. High grade mineralization shoots form where dilational opening and cymoid loops develop, typically where the strike or dip of the fault changes, allowing solutions to undergo cooling, degasification by fluid mixing, boiling, pH changes of hydrothermal solutions, and decompression.

In the opinion of the AMEC QP, deposit genesis and models as used in the exploration programs and for the development of Mineral Resource and Mineral reserve estimates are appropriate based on the style and settings of the mineralization.

A new topographic database was produced in DeWalt Corporation, Bakersfield set the control points around the perimeter of the area.

Foto Flight Surveys Ltd. Project specifications were as follows: GQM completed a 1: Several legacy trenches were noted on the southern extension of the Golden Queen vein.

Channel samples indicate that anomalous gold mineralization is present. However assay results were not used in developing Mineral Resources and Mineral Reserves for the Project.

Geochemical surveys were completed on the property over a number of years in the s. GQM found a map in the records but could not locate the supporting information.

The Geochemical Survey Map is shown in Figure 9. The gold and silver mineralogy for rhyolite and quartz latite are essentially the same as determined by Amtel Ltd.

Rhyolite is however typically more highly silicified than quartz latite and more gold has consistently been extracted from quartz latite than from rhyolite in column leach tests.

A summary of the geotechnical programs that have been conducted on the property since is provided in this section. The heap and heap leach pad design was completed by Golder as per the detail provided in a revised, geotechnical design report and this was included as Appendix 2 in the revised Report of Waste Discharge prepared for the Lahontan Regional Water Quality Control Board GQM, The work was done to assess the surface and subsurface geotechnical conditions to support the design for the Phase 1 and Phase 2 heap leach pads, the foundations for the crushing-screening plant, the foundations for the workshop-warehouse, for site runoff control, and to identify suitable soils for use as low-permeability soil liner material.

The programs consisted of geotechnical borings using cone-penetration, hollow-stem auger drilling, and excavating test pits with backhoes both on site and in the area of a proposed borrow pit west of Mojave-Tropico Road.

The location of borings and test pits is shown on Drawing 4 of the revised, geotechnical design report referred to above.

The field data, test pit logs, borehole logs and the results of extensive test work done on samples are available in the Golder offices in Denver.

Five diamond drill holes were drilled to obtain information for various rock types and discontinuities for slope stability analyses in A series of strength-related tests was performed on the drill core and the following information was recorded: A geological description, faults and fractures, unconfined compressive strength, point load strength, elastic modulus, specific weight and moisture content.

More detail is provided in Section The site drainage patterns are characterized by sheet flows over the surface with incised channels along preferred pathways.

These patterns are influenced by local topography and features from historical mining operations on the property. Most of the surface runoff drains to an ephemeral drainage channel that runs from east to west just to the south of Silver Queen Road.

The eastern portion of the drainage channel has been designated as a FEMA year floodplain. Runoff rates for onsite and offsite basins that are tributary to the drainage channel are presented in the Soledad Mountain Hydrology Study by Rivertech Inc.

The information was used to support the design of the low-flow access road to the property. Golder also determined runoff volumes for the basins that drain to the east and to the west.

Site drainage as it applies to the open pit operation is described in Section Site drainage as it applies to the heap leach operation is described in Section The Project is located at the southern end of the Fremont Valley groundwater basin and at the northern end of the Gloster subunit, immediately adjacent to the Chaffee subunit.

The primary aquifer in the Project area is the Quaternary alluvium which fills the basins and wide expanses of the Mojave Desert between isolated bedrock outcrops.

The alluvium ranges in thickness from 0m 0ft to m ft on the flanks of Soledad Mountain and may be up to m ft thick in the Mojave area.

Older alluvium is typically composed of silt, sand, gravel and boulders. Local altering of feldspars to clay may occur. Younger alluvium composed of silt- and clay-rich lake bed and playa deposits occurs interbedded with the coarser materials.

The lower permeability layers restrict downward flow above and in the aquifer. Regionally, groundwater in the Fremont Valley flows east, then northeast towards Koehn Lake.

Locally, groundwater flow directions are complicated by the essentially impermeable bedrock of Soledad Mountain. East of Soledad Mountain, groundwater flows into the California City sub-basin and further down-gradient to Koehn Lake, a dry lake, and this is the lowest point in the Fremont Valley basin with an elevation of 1, ft.

The depths to groundwater north of the site range from approximately ft. Local domestic water wells have low yields below 50 gallons per minute , however wells located further to the north have indicated higher yields with rates as much as 2, gallons per minutes at the Jameson Ranch located 4 miles to the north of the Project.

Water levels in the characterization and production wells on site show that groundwater in the area has minimal gradient and water levels have remained virtually static for the past ten years.

Information provided by the Mojave Public Utilities District indicates that water levels in wells surrounding the town of Mojave have remained relatively static for the past two decades.

Groundwater recharge is primarily from the Tehachapi and San Gabriel mountains several miles to the southwest, west and northwest of the Project area.

At the mountain front, alluvial fans termed bajadas receive runoff from the higher mountains and act as points of recharge.

As groundwater flows from west to east, faults and bedrock outcrops act as barriers to groundwater flowing through the alluvium.

These barriers contribute to the groundwater basin and sub-basin outlines. There are no springs or intermittent streams in the immediate Project area.

The closest stream is approximately 5km 3miles to the west. Evaporation rates are high. Precipitation, which does not evaporate, runs off rapidly with no evidence of groundwater recharge from runoff in the area.

Most of the wells in the immediate Project area are small-diameter, relatively shallow, domestic water wells. There is currently no known agricultural or industrial use of groundwater in the immediate area.

GQM has drilled and equipped 6 characterization and future water quality monitoring wells along Silver Queen Road and just to the north of the Approved Project Boundary.

Water samples have been taken and analyzed since the s. GQM introduced a strict sampling and analysis protocol in and the protocol has been followed since that time.

The use of groundwater as the water supply for the Project is described in Section A number of phases of metallurgical test work were completed between and , and these are described in Section GQM notes the following exploration targets see Figure 7.

Southeast extension of Silver Queen Vein. This projected intercept has not been drilled. Markiewitz and Reymert Veins. Additional drilling may extend current drill intercepts to the northwest and southeast.

Previous drilling by Noranda produced several 20 ft. Northwest Alphson Vein Systems. Additional drilling is warranted to test the subsurface extent of the Alphson zone.

The Bobtail Vein and Hope Vein systems project southeast into an area covered by recent alluvium. Additional drilling may increase the resource on these two veins.

Southern end of the Golden Queen Footwall Vein. A core hole drilled in the early s encountered sporadic 0. The silicification appears to be nearly horizontal and may represent pervasive silicification above a higher grade, structurally controlled feeder zone.

The exploration programs completed to date are appropriate to the style of the deposits and prospects within the Project.

The exploration and research work supports the interpretations of the orogenesis of the deposits. The Project retains significant exploration potential, and additional work is planned after the start of production.

The geotechnical and hydrological studies completed to date support a feasibility level engineering study and mine plan. The drilling database consists of surface and underground drill hole samples as well as underground cross-cut channel samples.

All underground cross-cut channel samples were labelled and treated as drill holes. All un-assayed intervals missing samples were set to null values and not used in the resource estimation.

Twenty RC holes were drilled for a total of 6, ft. The RC holes were concentrated in Szones 2 and 4 on the northern limit of the mineralized zones.

The general location and orientation of the RC holes is shown in Figure A syndicate headed by GFA acquired most of the properties in and completed extensive exploration programs until ordered to cease operations by Order L of the War Production Board in Additional channel samples were collected by various operators on other vein systems Karma since the district was discovered.

Information from an additional 97 underground channel samples totalling 6, Rosario and Shell-Billiton drilled 52 RC holes totalling 11, ft.

The first round of exploration drilling ended in and the Project was placed on care and maintenance from to GQM added RC holes for a total of , ft.

Drilling was restarted in and carried on until During this second period of drilling, an additional RC drill holes for a total of , ft.

GQM collected information from an additional 97 underground cross-cut channel samples totalling 6, GQM drilled a total of 6, ft. Nine drill holes were collared in the North-west Pit area, and the remaining 11 were drilled in the East Pit area.

This drill program was based on recommendations made by AMEC to increase the drill density in these two areas.

RC drilling was completed wet with water injection to control dust emissions. AMEC did not observe the drilling in the field.

Based upon the discrepancies between the collar survey orientations and the downhole surveys at East Pit performed by Golder, AMEC believes there is significant uncertainty in the true orientation of the drill holes at Soledad Mountain.

Because the lengths of the drill holes are relatively short, the risk of a significant error in the location of mineralized intercepts is low.

AMEC calculated the theoretical cumulative downhole deviation as a result of a 6. Drilling methods are described here from information compiled by MRA MRDI reports that information on contractors and drill-rigs used for the first RC holes drilled from to was not available.

Drill bits ranging from 4. Samples reportedly were collected at the drill rig at 5 ft. According to GQM staff, drilling was carried out with water injection to control dust emissions.

This required use of a rotating wet splitter. MRDI inspected five drill sites near the Level portal and found that the plastic bags in which rig duplicate samples had been stored had decayed, ruining the sample, or that samples had been destroyed during subsequent road work.

As a result, very few rig duplicate samples were preserved in a condition that permitted check sampling. RC samples were not weighed at the time they were collected; therefore, sample recovery could not be determined.

Twelve surface diamond drill holes were drilled from to by several contractors. Information is not available concerning drill-rigs utilized.

From onwards, surface diamond drilling has been carried out by McFeron and Marcus Exploration, Inc. All core was HQ 2.

Underground core drilling was done, starting in , by Boart Longyear Company using LM75 drill rigs. Core boxes are in good condition and stored in a secure, well-organized fashion on wooden shelves.

The core was either split mechanically or sawed. Three quarters of the core was collected for assaying, and one quarter was retained for reference.

Core logs were reviewed for all 59 holes to check core recovery through zones of mineralization. Recovery was not recorded for core holes Only general comments regarding recovery were made for holes DDH rather than recording actual measuremen ts for each drill run.

The remainder of drill logs recorded measured recoveries for each core interval. The number of mineralized intervals with poor core recovery is relatively small for the 43 core holes for which recovery information is available.

MRDI reports that recovery appears to have been adequate to meet industry standards for holes 22 and onward.

Records are substandard for the earliest 16 holes, however, and the impact of poor recovery in these holes is expected to be insignificant on Mineral Reserve estimates.

Only three of the 16 drill holes lie within the Mineral Reserve pit and two of the drill holes are supported by nearby RC drill holes or cross cut data within ft.

Channels are 6 inch wide and 1 inch deep and generally at least 5 ft. The technique of sampling employed by GFA is unknown, but it appears that a 2 in by 6 in board was used as a guide and the channel was cut with hand chisels until the board fit neatly within the channel.

Channels of this size should have produced a sample weighing about 33 lb to 35 lb per 5 ft. Samples reportedly were assayed at the mill laboratory on site.

Information on sample preparation and assay method is not available. In and , GQM carried out a program of re-sampling those cross-cuts that were channel-sampled by GFA, and a program of channel sampling other cross-cuts that either had not been previously sampled or where results for previous sampling were not available in a usable form.

GQM staff used a pneumatic hammer to cut horizontal channels from 2 inch to 3 inch wide and 5 feet long. An attempt was made to closely duplicate original channels cut by GFA, but this was not always possible because markings of the original channels did not survive or were illegible.

In these cases, the locations of the original channels were relocated using map linens of sample locations and underground survey markers.

Rock chips were collected on a canvas sheet. Samples weighing about 32 lb were produced from GQM channels. All channels inspected were relatively consistent in width and depth.

Additional channel samples were cut by GQM in to provide check information. The log accurately describes core observed by MRDI in core boxes.

Rock Quality Designation RQD was not measured prior to splitting core for any holes other than the five geotechnical holes.

Core logging data and procedures met industry standards at the time. Samples from RC drill holes were sieved, washed and either mounted on chip boards or retained in plastic chip trays.

Chips were logged at the office with a binocular microscope, and observations were recorded on logs. Parameters recorded were lithology, alteration, mineralization, oxidation and structural features such as intensity of fracturing and brecciation.

Logs were inspected for 20 drill holes, representing three percent of the total number of reverse-circulation drill holes.

The quality of logging was professional, although the visual similarity between rhyolite porphyry, silicified pyroclastics and flow-banded rhyolites was a source of error in interpretations by different geologists logging the same drill chips.

GQM resolved errors in interpretation prior to modelling for the feasibility study. Logging of reverse-circulation holes is adequate for a feasibility study.

Samples from reverse-circulation drill holes were sieved, washed and retained in plastic chip trays. Drill-hole collar locations were surveyed relative to the historical mine grid by DeWalt Corporation, Bakersfield, California.

The accuracy of collar surveys for all drill holes was checked by MRDI by plotting drill-hole collar elevations on a digital topographic map contour interval of 10 ft and checking drill collar elevations against the topographic elevation.

A total of 26 drill holes were found to have collar elevations greater than 10 ft above or below the topographic elevation. Local systematic errors, such as groups of drill holes with errors corresponding to the same direction in error relative to the topographic elevation, were found.

Discrepancies in the horizontal location of collars range from 25 ft to as much as ft. One group of 14 RC drill holes targeting the Queen Esther Vein had a systematic error in which drill collars were located from 20 ft to 50 ft southwest of the correct location.

The collar positions of GQ and GQ were checked in the field and were found to be reasonable relative to the portal of the level. The collar for GQ could not be found and most likely was destroyed by later road work.

The positions of underground cross-cut channel samples were located by GQM by using historical transit surveys of underground workings. The location of cross-cut channel samples was corrected by GQM if the elevation of those samples were tied to incorrect portal elevations.

E-mail Password Remember Forgot password? Add to my list. You can enter multiple email addresses separated by commas Message: About Golden Queen Mining Co.

Coates Independent Director Bernard J. More about the company. Aktien, Kurse und Nachrichten Best tweets.

Announces Loan Payment Extension. Announces Financial Results for the Third Quarter of You can enter multiple email addresses separated by commas.

Results of Operations and Financial Condition, Regu..

Golden Queen Mining Video

Made In Kern County: Golden Queen Mining Company Kennzahlen Club casino royal blomberg Queen Mining Aktie. Vitruvius European Equity BI. Problem mit dieser Seite? Chartsignale Golden Queen Mining Aktie. Alle Nachrichten, die dieses Unternehmen betreffen. Hierauf dürfen sich Investoren und E-Auto-Fans freuen. AMEC did not observe any of the sampling conducted during the drill campaign. Rock codes were incorporated in the analyses to identify changes in gold values that could be attributed to ausweis casino mineralization. It is also expected that mining operations will be conducted year round. The alluvium ranges in thickness from 0m 0ft to m ft on the flanks of Soledad Mountain and may be up to m ft thick in the Mojave area. Samples goodwood 2019 RC drill holes were sieved, dunder casino no deposit bonus 2019 and either mounted on chip boards or retained in plastic chip trays. The lower permeability layers restrict downward flow above and in the aquifer. All of the holes in the Northwest Pit area were blocked and down-hole surveys were not completed Fahringer and Benson, fuГџball strategie Water samples have been taken and analyzed since the s. Smaller equipment will be used for pioneering access roads, mining narrower benches, and final ore extraction at the bottom of the various mining phases. The youngest volcanic unit is a massive, tonybet steuern rhyolite porphyry of middle Miocene age. A consulting geologist, working for GQM, studied spatial variations in silver to gold ratios throughout the vein systems GQM internal report, April These pyroclastic rocks likely represent laterally discontinuous zones of vent eruptions and collapse breccias that formed after berlin champions league main pulse of rhyolite extrusion. A standard net smelter return per ton formula has been applied to the cash flows to calculate the estimated royalty payable. Detailed operating golden queen mining estimates have been prepared with information provided by independent anstehende boxkämpfe engineers and vendors of services and supplies such as diesel fuel and explosives, reagents such as cement and sodium cyanide and operating supplies malta temperatur spare parts for both the major mining equipment and support equipment and equipment in the various hidden wealth grim dawn facilities.

3 thoughts on “Golden queen mining

Hinterlasse eine Antwort

Deine E-Mail-Adresse wird nicht veröffentlicht. Erforderliche Felder sind markiert *