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Gold Standard Deep Drilling Intersects Outstanding Oxide Gold Grades and Thicknesses at Dark Star

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Gold Standard Deep Drilling Intersects Outstanding Oxide Gold Grades and Thicknesses at Dark Star






Gold Standard Ventures Corp. (TSX: GSV) (NYSE AMERICAN: GSV) today reported impressive new results from 4 reverse-circulation and 12 core holes at the Dark Star deposit on its 100%-owned/controlled Railroad-Pinion Project in Nevada’s Carlin Trend. These results are likely to have a substantial impact on the Dark Star deposit’s resource potential and development planning.



Four holes in the northern portion of Dark Star intersected exceptional, vertically-continuous zones of oxidized gold mineralization including 190.5m of 2.28 g Au/t, 230.2m of 1.87 g Au/t, 240.8m of 1.70 g Au/t, and 122.0m of 0.81 g Au/t.  These results continue to confirm oxide gold resource potential well below the depth of the current resource model.  This autumn, as part of an expanded development drilling program announced last week, approximately 5,400m of additional RC drilling in 17 holes will test new targets at depth below the current resource model, and 18 additional holes will test the potential for lateral resource expansion to the north, west and south of the current resource (see September 20, 2018 news release).



To date 23,644m of infill, step-out and geotechnical drilling have been completed in 132 RC and core holes at Dark Star (refer to Dark Star drill hole plan map at the following link –  Results from 12 Dark Star holes are summarized below, and with this news release, results have now been reported for 119 of the 132 holes that have been completed.  Three of the five rigs active on-site will focus on Dark Star through the remainder of 2018.



Jonathan Awde, CEO and Director of Gold Standard commented: “In our view, these results are very encouraging. Dark Star is emerging as an important Carlin oxide deposit with multi-million ounce potential and the size to support a large-scale, bulk-minable open pit production scenario. After three years of significant success, we think we may still be scratching the surface of Dark Star’s prospects which we now think may also include a deeper sulfide zone typical of the larger Carlin-style deposits to the north. We are very excited to have the opportunity to continue drilling with an expanded program over the next two or three months. ”



Key Highlights from Dark Star:



Northern portion of Dark Star


  • DC18-09 intersected 190.5m of 2.28 g Au/t, including separate intervals of 28.0m of 3.05 g Au/t, 20.2m of 6.51 g Au/t and 7.7m of 4.55 g Au/t.  The 190.5m interval contains a 15.5m zone of material below the 0.14 g Au/t cutoff.  Overall, the mineralized zone is thicker and higher-grade than predicted by the current resource model.  The hole ended at 221.0m in 2.81 g Au/t, which is approximately 45m below the current resource model. 
  • DR18-105 intersected 230.2m of 1.87 g Au/t including separate intervals of 22.9m of 7.16 g Au/t and 7.6m of 6.12 g Au/t (refer to cross section 4480170N – Mineralization extends approximately 85m below the current resource model.  Below the thick oxide mineralization, the hole intersected an interval of reduced mineralization including 32.0m of 1.04 g Au/t.
  • DR18-104 intersected 240.8m of 1.70 g Au/t including separate intervals of 39.6m of 2.80 g Au/t, 18.3m of 3.14 g Au/t, 10.7m 0f 3.09 g Au/t (refer to cross section 4480140N – Oxidized mineralization extends approximately 55m below the current resource model.  Below the oxide mineralization, the hole intersected a reduced zone of 27.4m of 2.28g Au/t, including 16.8m of 2.82 g Au/t.
  • In the northern portion of Dark Star, the vertically-extensive nature of oxidized mineralization, alteration, and fluidized breccia textures support an early-stage interpretation that drilling may be defining a feeder structure or a breccia pipe setting.
  • DR18-103 intersected 122.0m of 0.81 g Au/t, including 12.2m of 3.32 g Au/t (refer to cross section 4480020N –  Due to challenging drilling conditions, the hole ended at 202.7m in 0.54 g Au/t before testing the entire target.  DR18-106, which replaced DR18-103, successfully tested the complete target.  Assays for DR18-106 are pending.
  • DR18-70 intersected an oxide interval of 112.8m of 0.61 g Au/t, including separate intervals of 12.2m of 1.25 g Au/t and 6.1m of 2.04 g Au/t (refer to cross section 4480200N –  The oxide intercept includes a 13.7m interval of material below the 0.14 g Au/t cutoff.  Below the oxide mineralization, the hole intersected a reduced zone of 29.0m of 2.90 g Au/t, including 10.7m of 5.85 g Au/t.  Mineralization extends approximately 80m below the current resource model and remains open to the north. 
  • Based on the reduced gold intercepts in DR18-70, -104 and -105, there is an emerging sulfide target below the thick, vertically-continuous zones of oxide mineralization.



Southern portion of Dark Star


  • Core hole DC18-18 returned an oxide intercept of 15.2m of 0.38 g Au/t.  The intercept is closer to the current topographic surface than predicted by the resource block model and mineralization remains open to the south.  This new opportunity to expand the resource is coincident with an undrilled surface outcrop rock chip anomaly south of the known deposit.  Additional drilling is planned for this area.



Dark Star drill results are as follows:



Drill Hole Method Azimuth Incl. TD (m) Intercept (m) Thickness (m) Grade (g Au/t)
DR18-70 RC 90 -75 349.0 175.3-288.1 112.8 0.61
        Including 219.5-231.7 12.2 1.25
        Including 282.0-288.1 6.1 2.04
          294.2-323.3 29.0 2.90
        Including 311.0-321.7 10.7 5.85
DR18-103 RC 90 -73 202.7 45.7-62.5 16.8 0.16


80.7-202.7 122.0 0.81
166.2-178.4 12.2 3.32
DR18-104 RC 90 -80 403.9 24.4-265.2 240.8 1.70
        Including 42.7-82.3 39.6 2.80
        Including 135.7-154.0 18.3 3.14
        Including 205.8-230.2 24.4 2.77
        Including 254.5-265.2 10.7 3.09
          265.2-292.6 27.4 2.28
        Including 275.9-292.7 16.8 2.82
DR18-105 RC 90 -80 367.3 9.1-16.7 7.6 0.48
          39.6-44.2 4.6 0.39
          62.5-292.7 230.2 1.87
        Including 211.9-234.8 22.9 7.16
        Including 285.1-292.7 7.6 6.12
          292.7-324.7 32.0 1.04
          324.7-338.4 13.7 0.60
DR18-106 RC 90 -80 335.3 Assays pending
DC18-04 Core 275 -75 277.4 Geotechnical hole – assays pending
DC18-06 Core 40 -65 259.1 Geotechnical hole – assays pending
DC18-08 Core 130 -65 231.6 Geotechnical hole – assays pending
DC18-09 Core 90 -80 221.0 30.5-221.0 190.5 2.28
        Including 70.8-98.8 28.0 3.05
        Including 129.0-136.6 7.6 4.55
        Including 150.5-170.7 20.2 6.51
        Including 208.2-215.9 7.7 4.55
DC18-10 Core 290 -65 198.1 Geotechnical hole – assays pending
DC18-11 Core 90 -75 66.8 Assays pending
DC18-12 Core 205 -65 232.9 Geotechnical hole – assays pending
DC18-14 Core 110 -80 188.5 Geotechnical hole – assays pending
DC18-15 Core 90 -77 121.9 17.7-28.4 10.7 0.17
          32.9-101.4 68.5 0.69
        Including 43.6-55.8 12.2 1.13
        Including 87.4-99.0 11.6 1.41
DC18-16 Core 90 -85 196.0 71.0-75.9 4.9 0.80
  101.5-112.2 10.7 0.37
191.4-196.0 4.6 0.47
DC18-17 Core 90 -86 192.0 8.8-11.9 3.1 1.58




54.6-131.2 76.6 0.47
137.2-141.5 4.3 0.17
164.3-188.2 23.9 0.44
175.0-178.1 3.1 1.29
DC18-18 Core   -90 125.0 4.0-19.2 15.2 0.38
  22.3-29.9 7.6 0.25
DC18-19 Core 90 -55 176.8 93.6-97.7 4.1 0.18
DC18-20 Core   -90 105.2 15.9-22.0 6.1 0.17
  32.6-50.9 18.3 0.17
DC18-21 Core   -90 91.4 9.8-15.9 6.1 0.29
DC18-22 Core 90 -83 304.0 Assays pending
DC18-23 Core   -90 85.3 Assays pending
DC18-24 Core   -90 76.2 Assays pending



Gold intervals reported in this table were calculated using a 0.14 g Au/t cutoff for oxide mineralization and a 1.0 g Au/t cutoff for reduced mineralization.  Weighted averaging has been used to calculate all reported intervals.  True widths are estimated at 70-90% of drilled thicknesses.



Don Harris, Gold Standard’s Senior Development Geologist commented: “The deep drill tests below the Dark Star resource have provided excellent results for GSV. Assay results, including select zones of >7 g Au/t, have pushed the gold zone 80-90m deeper than previously modeled.  The mineralization appears to be related to the Ridgeline structural zone and remains open to the north, south, west and at depth.  We are anxiously awaiting results of the final two holes (DR18-106 and DC18-22) to design follow up drilling.”



Sampling Methodology, Chain of Custody, Quality Control and Quality Assurance 


All sampling was conducted under the supervision of the Company’s project geologists and the chain of custody from the project to the sample preparation facility was continuously monitored.  A blank, certified reference material, or rig duplicate was inserted approximately every tenth sample.  The samples were delivered to Bureau Veritas Mineral Laboratories preparation facility in Elko, NV where they were crushed and pulverized.  Resulting sample pulps were shipped to Bureau Veritas certified laboratory in Sparks, NV or Vancouver, BC.  Pulps were digested and analyzed for gold using fire assay fusion and an atomic absorption spectroscopy (AAS) finish on a 30-gram split.  Over limit gold assays were determined using a fire assay fusion with a gravimetric finish on a 30-gram split. All other elements were determined by ICP analysis.  Data verification of the analytical results included a statistical analysis of the standards and blanks that must pass certain parameters for acceptance to insure accurate and verifiable results.



Drill hole deviation was measured by gyroscopic down hole surveys that were completed on all holes by International Directional Services of Elko, NV.  Final drill collar locations are surveyed by differential GPS by Apex Surveying, LLC of Spring Creek, Nevada.     



The scientific and technical content contained in this news release have been reviewed, verified and approved by Steven R. Koehler, Gold Standard’s Manager of Projects, BSc. Geology and CPG-10216, a Qualified Person as defined by NI 43-101, Standards of Disclosure for Mineral Projects.





Gold Standard is an advanced stage gold exploration company focused on district scale discoveries on its Railroad-Pinion Project, located within the prolific Carlin Trend. The 2014 Pinion and Dark Star gold deposit acquisitions offer Gold Standard a potential near-term development option and further consolidates the Company’s premier land package on the Carlin Trend. The Pinion deposit has a resource estimate prepared in accordance with NI 43-101 consisting of an Indicated Mineral Resource of 31.61 million tonnes grading 0.62 g/t Au, totaling 630,300 ounces of gold and an Inferred Resource of 61.08 million tonnes grading 0.55 g/t Au, totaling 1,081,300 ounces of gold, using a cut-off grade of 0.14 g/t Au.  The Dark Star deposit, 2.1 km to the east of Pinion, has a resource estimate prepared in accordance with NI 43-101 consisting of an Indicated Mineral Resource of 15.38 million tonnes grading 0.54 g/t Au, totaling 265,100 ounces of gold and an Inferred Resource of 17.05 million tonnes grading 1.31 g/t Au, totaling 715,800 ounces of gold, using a cut-off grade of 0.2 g Au/t. The North Bullion deposit, 7 km to the north of Pinion, has a resource estimate prepared in accordance with NI 43-101 consisting of an Indicated Mineral Resource of 2.92 million tonnes grading 0.96 g/t Au, totaling 90,100 ounces of gold and an Inferred Resource of 10.97 million tonnes grading 2.28 g/t Au, totaling 805,800 ounces of gold, using a cut-off grade of 0.14 g Au/t for near surface oxide and 1.25 to 2.25 g Au/t for near surface sulfide and underground sulfide respectively. 


Posted September 24, 2018

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