TORONTO, Dec. 18, 2017 (GLOBE NEWSWIRE) -- Alacer Gold Corp. ("Alacer" or the "Corporation") (TSX:ASR) (ASX:AQG) is pleased to announce a maiden Mineral Reserve and a 70% increase in the Measured and Indicated Mineral Resource1 for the Çakmaktepe near-mine deposits located in the Çöpler District. Alacer also announces initial exploration drilling results of the Çakmaktepe Far North exploration prospect. Çakmaktepe is adjacent to the Çöpler Mine which has approximately four million tonnes of spare capacity in the heap leach facility which will be used to treat oxide ore from Çakmaktepe.
Rod Antal, Alacer's President and Chief Executive Officer, stated, "This is exciting growth. Our target has always been to bring Çakmaktepe online in 2018 and with mining planned to commence in Çakmaktepe next year, we will meet this objective. With this development, we now have an additional oxide ore source that will utilize the existing Çöpler oxide infrastructure. Turning this exploration potential into profitable production in a relatively short time frame is a significant achievement by the team.
Additionally, we recently completed five initial drill holes at Çakmaktepe Far North and are already seeing excellent potential with the assays revealing mineralization and good grade continuity. With many areas remaining open across Çakmaktepe, our targeted exploration program will continue into 2018 with a view to build on our results to date."
Summary
- The Measured and Indicated Mineral Resource estimate for Çakmaktepe in the Çöpler District has increased by ~70% (to 239,000 ounces) since December 2016. The Inferred Mineral Resource estimate increased by ~110% (to 50,000 ounces) since December 2016.
- Defined a Maiden Mineral Reserve of 176,000 ounces for the Çakmaktepe Resource.
- Pending approval of the revised Environmental Impact Assessment and Operating Permits, Alacer plans to commence mining the portion of the deposits not covered by Pasture Permits; estimated to be Q4 2018.
- This initial Çakmaktepe material will be trucked to the existing Çöpler processing facility and is estimated to contribute approximately 50,000 ounces of recoverable gold production, predominantly in 2019.
- Pasture permit applications have been submitted for the other areas of Çakmaktepe defined as Pasture land.
- The mine access road connecting Çöpler to the Çakmaktepe deposits is under construction and connects to the new tailings storage facility haul road.
- Exploration continues at Çakmaktepe and the updated Mineral Resource does not include drilling after June 21, 2017. Many areas of the Çakmaktepe deposit remain open.
- Initial drilling of Çakmaktepe Far North is encouraging and exploration of the area has been accelerated.
- The in-pit exploration program at Çöpler continues and is focused on finding additional oxide ore.
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1 Detailed information regarding the Çöpler District maiden Mineral Resource can be found in the press release entitled "Alacer Gold Announces Additional Exploration Results for Çakmaktepe and an Initial Mineral Resource in the Çöpler District," dated December 19, 2016, available on www.sedar.com and on www.asx.com.au.
An image of the Çakmaktepe Prospect Location Plan accompanying this release is available http://resource.globenewswire.com/Resource/Download/b48d4cbf-8528-494b-b39b-47b168db5c72
2017 Çakmaktepe Mineral Resource Estimate Update and Initial Reserve Estimate
Çakmaktepe Far North Drilling Highlights
Çakmaktepe Far North Project is located immediately north (about 1.5 km) of Çakmaktepe North. Five holes have been drilled with each showing good mineralization and grade continuity. Exploration of the mineralized trend has just commenced, and it is hoped that the mineralization extends further along the trend. The exploration area is predominantly in the Anagold 80:20 lease area. All the drilling to date is in the 80:20 lease area.
The section has been tested with 5 drill holes within an area of approximately 170 m x 130 m as shown in the geological map. In contrast to Çöpler and Ҫakmaktepe mineralization, Far North's copper content is very low. Silver is very rare and is not shown on the drill hole table.
Drill hole table shows the notable gold sections with a cut-off grade of 0.3 g/t Au.
Çöpler District
Çöpler District Location Plan
The Mineral Resource estimate was based on 3D geological models developed to define the lithological contacts and sub-vertical shear zone style mineralization. Mineralized zones were then used to generate a block model estimate of the deposit mineralization. The model includes drill data and surface mapping through June 21, 2017.
or visit the Corporation's website at www.alacergold.com.
The Çakmaktepe Project is made up of a number mineralized zones collectively referred to as the Çakmaktepe deposit. Bayramdere, by virtue of isolation, is referred to as a separate mineral deposit. Çakmaktepe and Bayramdere are adjacent to and on the western side of a major northwest striking regional fault structure. The regional structure appears to control the distribution of most mineralization to the east of the Çöpler Mine.
Metallurgically, the Ҫakmaktepe and Bayramdere ores are of similar nature to ores processed at the Çöpler Heap Leach operation. A number of bottle roll and column tests were conducted in 2016 and 2017 at the SGS laboratory in Perth, Australia. The Ҫakmaktepe and Bayramdere deposits have oxide leach gold recoveries ranging from 59% to 80% dependent on lithology type and deposit location.
A total of 15,606 m of drilling from Çakmaktepe East was used in the creation of the 2017 Çakmaktepe East resource model, inclusive of metallurgical and geotechnical holes. The drilling meterage is representative of all drilling completed to June 21, 2017.
A total of 13,914 m of RC (93%) and diamond drilling (7%) was incorporated into the 2017 Mineral Resource estimate from the Çakmaktepe Southeast zone. The drilling meterage is representative of all drilling completed to June 21, 2017, and is inclusive of metallurgical and geotechnical holes.
Additional Drilling Information
A total of 119,447 m of drilling was completed to define the Mineral Resource estimate. In addition,
- MRMR geotechnical logging was integrated in 2017,
- Step-out drilling in 2017 defined new extension ore zones outside the known zones, and
- New metallurgy holes were drilled to provide additional samples for the Ҫakmaktepe Central district.
- Definition of a mineralized feeder structure
- Further oxide mineralization associated with crossing structures, and
- Testing of the deeper sulfide mineralization.
Next Steps
Exploration activity on the Çakmaktepe Far North mineralization will be accelerated in 2018; including both drilling and metallurgical studies.
About Alacer
Alacer is actively pursuing initiatives to enhance value beyond the current mine plan:
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2 All-in Sustaining Costs per ounce is a non-IFRS performance measure with no standardized definition under IFRS. For further information and a detailed reconciliation to IFRS, please see the "Non-IFRS Measures" section of the latest MD&A.
3 Detailed information regarding the Sulfide Project, including the material assumptions on which the forward-looking financial information is based, can be found in the technical report dated June 9, 2016 entitled "Çöpler Mine Technical Report" (the "Çöpler Technical Report"), available on www.sedar.com and on www.asx.com.au.
4 Detailed information regarding the Çöpler District Mineral Resource and Mineral Reserve can be found in the press release entitled "Alacer Gold Announces Additional Exploration Results for Çakmaktepe and an Initial Mineral Resource in the Çöpler District," dated December 19, 2016, available on www.sedar.com and on www.asx.com.au.
5 Additional information on the Gediktepe Project can be found in the press release entitled "Alacer Gold Announces a New Reserve for its Gediktepe Project Providing Future Growth," dated September 13, 2016, available on www.sedar.com and on www.asx.com.au.
Alacer is a Canadian corporation incorporated in the Yukon Territory with its primary listing on the Toronto Stock Exchange. The Corporation also has a secondary listing on the Australian Securities Exchange where CHESS Depositary Interests ("CDIs") trade.
Cautionary Statement
Additional Information and Risk Factors
Other than as required by law, Alacer does not intend, and undertakes no obligation to update any forward-looking information to reflect, among other things, new information or future events. For additional information, you should refer to Alacer's public filings, including the Corporation's AIF, available on SEDAR at www.sedar.com and on the ASX at www.asx.com.au.
For further information on Alacer Gold Corp., please contact:
Lisa Maestas – Director, Investor Relations at +1-303-292-1299
Appendix 1
Qualified Person Statement
Messrs. Ligocki and Statham consent to the inclusion in this announcement of the matters based on this information in the form and context in which it appears.
Summary for the purposes of ASX Listing Rules 5.8 and 5.9
Please refer to the JORC Code Table 1 contained in Appendix 2 of this announcement for information relating to the estimates of Minerals Resources for the Çakmaktepe Project. A copy of which can be found on www.sedar.com, the Australian Securities Exchange and on our website www.alacergold.com.
Geology and Geological Interpretation
The Çöpler, Çakmaktepe and Bayramdere deposits are within the Tethyan Mineralized Belt, a major global mineralized terrain for gold, copper and base metals stretching from Indo-China into Europe through Eurasia.
At depth, mineralization transitions below the base of complete oxidation to disseminated pyrite, vein sulfides and massive sulfide horizons generally occurring within shear zones, along shallow thrusts, diorite sill and dyke margins. The extent of sulfide mineralization has not been tested.
As with the Çöpler deposit, Çakmaktepe and Bayramdere are considered to be the result of a mineralized intrusion generating the right conditions for mineralization to be localized into a favorable geological setting of ophiolite, limestone, and hornfels lithologies. A complex system of faults and thrusts have allowed mineralized fluids, diorite dykes and sills associated with the epithermal system to permeate into the stratigraphy.
Drilling Techniques
The majority of drilling was completed at an angle of 60 degrees and depending on deposit, facing east or west. On difficult mountain slopes, diamond and RC drilling was also completed as a series of fan holes at differing angles from the same drill site where drill platform availability was limited.
The percentage breakdown of RC versus diamond drilling method varied by deposit:
- Çakmaktepe North and Central - 42% RC sample, 40% diamond core, 18% RC/Core combination
- Çakmaktepe East - 23% RC sample, 75% diamond core, 2% RC/Core combination
- Çakmaktepe Southeast - 93% RC sample, 7% diamond core
- Bayramdere - 28% RC sample, 59% diamond core, 14% RC/Core combination
Sampling and Sub-sampling
Diamond drill core is sampled as half core at 1m intervals. Where possible, all diamond core is oriented using the 2IC Ezy-Mark or Reflex ACT II systems and collected in HQ triple tube splits pumped out with water. Drill holes are downhole surveyed using a MEMs Gyro, Reflex Multishot, Devico or North Seeking Gyro to ensure accurate location of all samples spatially from drill collar to end of hole. All drill collars are surveyed-in by DGPS.
RC chip samples are collected in calico bags (3-5kg) for analysis at 1m intervals using a side mounted rotary cone splitter and representative sub-samples are placed into chip box trays at 1m intervals for logging. All samples are weighed using digital scales with weights recorded and used to determine sample representivity. The scale is tared before each measurement. All weights are recorded onto paper and transferred to the geological database.
RC reject samples are collected in PVC bags and stored in a bag farm for at least 6 months in case of relogging, duplicate sampling and follow-up QAQC. Retained diamond core is stored in marked core trays in a dedicated core yard with core under cover for an indefinite time period. Diamond core is quarter cored as required for further sampling and QAQC.
Diamond Core and RC samples are submitted to certified independent analytical laboratories for analyses.
From 2012 to April 2015, samples from Çakmaktepe East and Southeast were submitted to ALS Laboratory in Izmir, Turkey. April 2015 to December 2016, the SGS Ankara laboratory was used as the primary laboratory for Çakmaktepe projects. The 2017 samples were submitted to ALS Laboratory in Izmir, Turkey.
From 2015 to 2016, the Ankara ACME (Bureau Veritas) laboratory has been used as Umpire Laboratory. ACME provides similar analyses to SGS for fire assay, gravimetric gold, ICP-AES for 35 elements, Total Carbon and Sulfur analysis as a quality control on the main laboratory.
Data Verification
Mineral Resources
Estimation Methodology
Estimation was limited to the interpreted domains, with each domain informed only by samples contained within that domain. Outside the mineralized domains a ‘mineralized waste' estimate was completed.
The Çakmaktepe North, Central, East and Southeast zones were estimated using Inverse Distance Cubed (ID3). ID3 is a linear estimation technique applied to gold, copper, silver and sulfur mineralization. Ordinary kriging was used to estimate gold, silver and copper mineralization at Bayramdere. A 3D model has not been constructed to date for the Far North project.
Model Verification
All estimates were validated against alternate interpolation methods. Estimated grades were compared to a nearest neighbor model to check for global bias. Swath plots were used to check for a local bias. The estimated gold grades in the model were compared to the composite grades by visual inspection in plan views and cross sections. Composite samples were queried by domain to confirm proper sample flagging.
Mineral Resources Classification
Mineral Resources were classified based on a drill spacing study and observed continuity of geology and mineralization. Indicated Mineral Resources should be known within +/- 15 percent with 90 percent confidence on an annual basis and Measured Mineral Resources should be known within +/- 15 percent with 90 percent confidence on a quarterly basis. No blocks were classified in the Measured category.
Reasonable Prospects of Eventual Economic Extraction
To meet the reasonable prospects of eventual economic extraction criteria, Mineral Resources are tabulated within a Lerchs-Grosmann (LG) optimization shell generated using a gold price of $1,400/oz., a silver price of $19, and metallurgical gold recoveries that vary from 59% to 80% for oxide material. Mineral Resources are reported inclusive of Ore Reserves.
Cut-off Grade
Mineral Resources were tabulated using multiple cut-off grades due to variable recoveries and based on gold price only. Cut-off grades are calculated based on the equation: Xc = Po / (r * (V-R)); where Xc = Cutoff Grade (g/t), Po = Processing Cost of Ore (USD/tonne of ore), r = Recovery, V = Gold Sell Price (USD/gram), R = Refining Costs (USD/gram). Cutoff grades vary from 0.35 – 0.50 g/t.
Ore Reserves
Material Assumptions for Ore Reserves
The Ore Reserves were estimated to a feasibility study level with all material assumptions being documented in the JORC Code Table 1 contained in Appendix 2 of this announcement. All operating and capital costs as well as revenue streams were included in the financial model. The study finds that the recovery of metals is technically and financially feasible, generating positive returns on infrastructure investments.
Ore Reserves Classification
Ore Reserves are estimated on the basis of detailed design and scheduling of the Ҫakmaktepe open pits. The pit boundaries are guided by optimized LG pit shells. The oxide pit shell is evaluated with a gold price of $1,250/oz, silver price of $17/oz, mining cost of $1.40/tonne mined, and processing costs ranging from $7.56/tonne to $9.28/tonne.
All the Ore Reserves are derived from Indicated Mineral Resources. All Inferred Mineral Resources are considered as waste.
Mining Method
Conventional open pit mining is the chosen method of extraction for Ore Reserves at Çakmaktepe. Pit development will begin along the hillside. Ore is primarily found near surface and will be identified using ore control procedures already in place at the Çöpler mine.
Ore Processing
Cut-off Grade
Estimation Methodology
The estimation methodology is described in the "Mineral Resources" section above.
Ore Reserves are not diluted, nor is any mining dilution expected beyond that already implied by the Mineral Resources model block size (5m x 5m x 2.5m) and estimation method. Full mining recovery is assumed.
Material Modifying Factors
Gold and silver will be produced in the form of doré and sent to refiners for separation. The market for gold and silver is robust. A high-grade copper precipitate will be produced from oxide ore for sale.
Infrastructure and labor forces currently serving the Çöpler mine is sufficient for processing oxide ore from Çakmaktepe. A dedicated private access road connecting the two mines will be constructed. Power and water supply improvements have been budgeted and designed to meet the needs of the proposed mine.
The Company operates under mining licenses issued by the Turkish Government. The EIA application of the Çakmaktepe project was submitted in June 2016 and was approved in January 2017. A revised EIA application, including Çakmaktepe Central pit, was submitted in July 2017. Çakmaktepe project forestry permits were approved. Pasture permits are awaiting approval. Connection road land use permits have been approved.
Appendix 2 - JORC Code Table 1
The following tables are provided to ensure compliance with the JORC Code (2012) edition requirements for the reporting of exploration results, Mineral Resources and Ore Reserves in respect of the maiden Ore Reserve and the Mineral Resource Upgrade for Çakmaktepe.
Section 1 Sampling Techniques and Data
(Criteria in this section apply to all succeeding sections.)
Section 2 Reporting of Exploration Results
Section 3 Estimation and Reporting of Mineral Resources
(Criteria listed in section 1, and where relevant in section 2, also apply to this section.)
Section 4 Estimation and Reporting of Ore Reserves
APPENDIX 2
Drill Hole Results Received After June 21, 2017
Graphs with Drill Hole Results accompanying this release are available at
http://resource.globenewswire.com/Resource/Download/ccd6dd44-81c4-4ff2-a73e-b1fc353451d7
http://resource.globenewswire.com/Resource/Download/5504b75b-4f0e-4f60-9b7a-84612dbdb522
http://resource.globenewswire.com/Resource/Download/62c7c0a3-2080-4be6-ac18-9c6f548c6fcb
APPENDIX 3
Diagrams
Diagrams accompanying this release are available at
http://resource.globenewswire.com/Resource/Download/9183036f-cd76-4cae-8a14-303b13248c20
http://resource.globenewswire.com/Resource/Download/0175c06b-2055-468b-8399-23b9cd23ed5d
http://resource.globenewswire.com/Resource/Download/c608fd63-eab6-4c3b-ae0d-1982703cbf7e
http://resource.globenewswire.com/Resource/Download/72b03862-998b-4a70-ab71-535922f5ad22
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