Railroad-Pinion Project Overview
The Railroad-Pinion Gold Project is the Company’s flagship project in North Central Nevada. The 100% owned/controlled project, covers approximately 115 km2 (45 miles2). The property is located within the prolific Carlin Trend, adjacent to Newmont’s Rain and Emigrant mines, and is 47 kilometers southwest of Elko. The Railroad-Pinion project encompasses the entire “Fourth Window” on the Carlin Trend (click here for Carlin Long Section). It encompasses a unique target-rich district which still remains predominantly untested. Gold Standard continues to explore and discover new gold zones throughout the property. The Company has prioritized four advanced targets for further work this year—the newly discovered North Dark Star/Dark Star, Pinion oxide-gold deposit, the classic Carlin style North Bullion deposit and the Bald Mountain oxide-gold and copper target. The Railroad-Pinion project also covers 14 kilometers of the Bullion Fault Corridor, a major gold-mineralized north south trending structural corridor, which hosts both Pinion and North Bullion deposits. North Bullion occurs near the north end of the structure and the Pinion occurs at southern end, with multiple untested target areas in between.
2016 Drill Targets
Pinion Deposit: The Pinion gold deposit occurs within the southern portion of the Bullion Fault Corridor, along the Bullion Fault Corridor, the same structural feature that controls Gold Standard’s North Bullion discovery. To date, approximately 385 drill holes have been completed at Pinion: 12 core holes and 373 reverse circulation (RC) holes. The shallow-dipping Pinion deposit is reportedly entirely oxidized mineralization with the northern portion of the deposit outcropping. Historic drill holes demonstrate good continuity of collapse-breccia-hosted gold mineralization from hole to hole (see cross sections in “Maps and Sections” tab above). The style of oxide mineralization at Pinion is very similar in character to Newmont’s recently commissioned Emigrant heap-leach gold mine, located about 16 kilometers to the north1. The Pinion deposit gold mineralization occurs in an oxidized collapse-style breccia, both deposits have similar grades and similar gold-to-silver ratios. Gold Standard is currently completing an NI 43-101 compliant resource estimate for Pinion, expected Q3 2014. North Bullion Deposit: Gold Standard’s recently discovered North Bullion Deposit is the classic Carlin-style sedimentary-hosted system. It was the first significant discovery Gold Standard made at the Railroad-Pinion Project, announced in February of 2012 (please click here for North Bullion Drill plot plan). Highlight drill intercepts at North Bullion to date include2:
- RR 11-16, 56.4m @ 4.26 g Au/t incl. 18.3m @ 7.03 g Au/t
- RR 12-1, 164m @ 3.38 g Au/t incl. 42.7m @ 9.40 g Au/t
- RR 12-10, 124m @ 4.05 g Au/t incl. 16.5m @ 15.1 g Au/t
- RR 13-8, 73.5m @ 3.7 g Au/t incl. 7.6m @ 12.1 g Au/t
- RR 13-11, 98.1m @ 3.26 g Au/t incl. 17.1m @ 9.98 g Au/t
In 2013, GSV discovered higher grades of gold in the lower breccia zone with holes RR 13-8 & RR13-11. This flat lying collapse breccia is the ideal host setting for the classic Carlin sedimentary hosted gold systems. Recent drilling results at North Bullion in RR13-8, RR13-11 and RR13-14, appear to indicate a west-trending “bulge” or “extension” in the North Bullion deposit3. This change in mineralization pattern could represent an association with an important west-northwest-trending feeder structure. Further drilling is anticipated in Q3, 2014. Bald Mountain Target: The balance of the Bald Mountain target was consolidated by GSV in 2013 with the purchase of three patented claims that cover an area where previous RC drilling by Kinross, had generated positive gold and copper results. The first hole drilled by Gold Standard in this area, vertical core hole RRB13-1, intersected 56.1 meters of 1.47 g Au/T, including of 7.3 meters of 5.66 g Au/T (see news release of October 2, 2013). Importantly, this gold intercept is hosted entirely in oxidized collapse breccias and represents the most significant oxidized gold mineralization found to date in the northern Railroad-Pinion project area. Immediately below the gold intercept, RRB13-1 intersected a separate copper zone returning 23.3 meters of 0.4% copper as well as four narrower but high-grade intercepts of other base metals and silver including a 1.5 meter intercept of 763.8 grams of silver per tonne, 1.6% copper, 11.8% lead and 2.43% zinc. The Bald Mountain occurrence has a geochemical surface expression of approximately 500 meters by 2,000 meters, confirmed by 120 rock chip and 402 scoop samples taken during 2013 and correlating with an east-west oriented gravity low. Further drilling is anticipated in Q3, 2014. In addition to the oxide gold systems, Bald Mountain has potential to host copper-gold porphyry or skarn mineralization; important deposits such as Newmont’s Mike and Fortitude deposits occur within the Carlin and Battle Mountain Trends respectively. Notes:
- The existence of mineral reserves/resources at Newmont’s Emigrant mine is not necessarily indicative of the gold mineralization in the Pinion deposit
- These gold intervals may, or may not represent true thicknesses and, or widths as gold distribution within large, complex tectonic and collapse breccia bodies tends to be irregular and determinable by grade breaks only.
- No estimate of the range of potential tonnage and grade of mineralization in the North Bullion deposit target has been made by Gold Standard to date.
See disclaimer at bottom of page
Pinion Deposit Cross Sections
Above maps includes updated GSV land holdings following the Pinion land acquisition, dated March 5th, 2014 (please see press release of same date)
Located at the southern end of the 100 million ounce Carlin Trend, Gold Standard Venture Corp.’s Railroad project is prime hunting ground for huge gold deposits. With intercepts of 164 meters of 3.38 g/t gold and 124 meters of 4.05 g/t gold at the North Bullion target, it is evident that Gold Standard has already drilled into a large Carlin Trend gold system. Further opportunity waits, as the ~ 26 square mile Railroad property remains largely unexplored with many undrilled targets showing evidence of Carlin-style gold.
First and foremost, the Railroad project is in the right place with exclusive mineral rights to the fourth and southernmost dome-shaped window on the Carlin Trend. Domes along the Carlin Trend expose the carbonate rocks that host the gold deposits. They are bounded by north-, northeast- and northwest-striking faults that have existed since this area was located at the very active, western edge of the North American continent, hundreds of millions of years ago. Recent discoveries of large, deep gold deposits, e.g. Leeville, Turf and Northwest Rain, were made exploring along dome-bounding faults. This long-lived, framework of faults along the Carlin Trend tapped deep into the earth’s crust and was repeatedly intruded by magma from about 160 to 37 million years ago. It is the youngest magmato-thermal event about 37 million years ago that drove the gold-bearing, hot water solutions up the faults and along reactive limestone contacts to form the gold deposits at Railroad and along the Carlin Trend. Focusing in on the North Bullion deposit specifically, gold there was deposited in two horizons; an upper zone starting at 105 meters below surface hosted in sheared mudstone, sandstone and limestone of the Mississippian Tripon Pass Formation and a lower zone beginning at 274 meters in sandstone, mudstone, limestone breccia along the contact between the Mississipian Chainman and Devil’s Gate Formations. Dissolution of limestone to form collapse breccias, flat faults and dacite sills provided the permeability contrasts that channeled the gold into the upper and lower zones. North Bullion has geochemical signature typical of other Carlin deposits with mercury, arsenic, antimony and thallium also deposited in and around gold pathways. These two gently to moderately east-dipping gold zones are located within the western edge and footwall of a large fault zone, the Bullion fault zone, which is similar to the Post fault zone and other major gold controlling faults on the Carlin Trend. Similarities include the presence of 37 Ma dikes, a long strike length of 6 miles and significant displacement of at least 2,000 feet, down to the east. In detail, the North Bullion deposit is located where a northeast-striking, northwest-dipping fault intersects the Bullion fault, forming a triangular shaped structural high or horst – a common setting for deposits along the Carlin Trend. Most of the six mile strike length of the Bullion fault zone is untested by drilling, and Gold Standard geologists are identifying numerous fault intersections for drill tests. Although Carlin-style gold remains the main focus of Gold Standard’s exploration at Railroad, there is the potential for significant silver, copper, lead and zinc mineralization around a multi-phase and multi-age, intrusive complex called the Bullion Stock. It is within the area around the stock, known as the Bullion mining district, that mining during the 1860s pulled gold, silver, lead, zinc and copper ore from steeply dipping breccias developed at the intersection of faults. Late in 2012, Gold Standard targeted a west-northwest-striking, dike-filled corridor within the Central Bullion and intersected 18 meters of 3.06 oz/st silver and 0.80% copper, and 57 meters of 1.7 oz/st silver and 0.78% copper, including 13.4 meters of 6.42 oz/st silver and 2.48% copper. These intercepts represent a new discovery, the Sylvania deposit, and occur within skarn along a west-northwest-striking, dike-filled fault. Existing intercepts 1300 meters to the north at Bald Mtn., such as 23 meters of 0.480 g/t Au from 207 to 230 meters and 52 meters of 0.40% Cu from 267 to 319, support the presence of a strong polymetallic system marginal to the Bullion Stock. Many fault intersections within the Bullion stock remain undrilled, and Gold Standard has plans to begin to test these targets in 2015. Gold Standard is conducting a systematic, Carlin model driven exploration program at Railroad that includes an integrated use of geologic mapping, geochemistry and geophysics (gravity and CSAMT). This multi-layered methodology was used by Gold Standard’s geologists to explore for and discover blind (not exposed at the surface) multi-million ounce deposits on the Carlin Trend, while working for Newmont during the 1990s. The exploration program is model driven, relying on an understanding of the three dimensional attributes of known deposits to vector towards the foci of the gold system at Railroad. This approach has already resulted in the discovery of the North Bullion and Sylvania deposits, and future discoveries are expected in the target rich environment at Railroad.
The Pinion deposit now has an NI43-101 compliant resource estimate consisting of an Indicated Mineral Resource of 20.84 million tonnes grading 0.63 grams per tonne (g/t) gold (Au), totaling 423,000 ounces of gold and an Inferred Resource of 55.93 million tonnes grading 0.57 g/t Au, totaling 1,022,000 ounces of gold, using a cut-off grade of 0.14 g/t Au (announced September 10, 2014).
North Bullion Deposit
Rock and Soil Sample Maps
Technical Report on the Railroad – Pinion Project
Railroad hosts the company’s new gold discovery at the North Bullion Fault Zone (“NBFZ”). Highlight intercepts from the North Bullion discovery include;
- February 22nd 2012, drill hole 11-16 intersects high-grade within NBFZ. ~56.4m @ 4.26 g/t Au confirming the North Carlin comparatives
- April 26th 2012, drill hole 12-1, 120m step out of 11-16, 164m @ 3.38 g/t Au
- September 18th 2012, drill hole 12-10, 80m step out of 12-1, 124m @ 4.05 g/t Au
- May 21st 2013, drill hole 13-08, a 75m step-out to the north of the North Bullion deposit, 73.5m @ 3.67 g/t Au
- September 19th 2013, drill hole 13-11, located 70 meters west of previously drilled and reported hole RR13-08, 98.1m of 3.26g/t Au
The company is following up on these discovery intercepts with the goal to build a 43-101 compliant gold resource. The company continues to build the discovery area within North Bullion, as well as hunt additional depositions of gold. The North Bullion discovery is hosted within the NBFZ, which is part of the greater Bullion Fault Corridor – approximately 10km (6 mi) of linear target area within the Railroad exploration window. The focus of the company is further delineation within the North Bullion discovery as well as continued exploration within the highly prospective NBFZ where, based on extensive geophysics and geochemistry, the company believes the potential for multiple undiscovered gold deposits still remain. In addition to the work being carried out within the NBFZ, the entire Bullion Fault Corridor is now being assessed for further localized target areas – as the expectations within NBFZ grow southwards along the corridor.
Drill Hole Assay Tables
- Drill Table 2015 Railroad
- Drill Table 2015 Dark Star
- Drill Table 2014 Pinion
- Drill Table 2013 Railroad
- Drill Table 2012
- Drill Table 2011
- Drill Table 2010
Note: The gold intervals reported in these assay tables are based on a 0.200 g Au/t cutoff. Weighted averaging has been used to calculate all reported intervals. The reported gold intervals may, or may not represent true thicknesses and, or widths. In general, the gold distribution within these large, complex breccia bodies tends to be irregular and will require additional drilling to establish true widths. 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 drill to the sample preparation facility was continuously monitored. Core was cut at the company’s facility in Elko and one half was sent to the lab for analysis and the other half retained in the original core box. A blank, quarter core duplicate or certified reference material was inserted approximately every tenth sample. The samples are delivered to ALS Minerals preparation facility in Elko. The samples are crushed and pulverized and sample pulps are shipped to ALS Minerals certified laboratory in Vancouver. Pulps are digested and analyzed for gold using fire assay fusion and an atomic absorption spectroscopy (AAS) finish on a 30 gram split. All other elements are determined by ICP analysis. Data verification of the analytical results includes a statistical analysis of the duplicates, standards and blanks that must pass certain parameters for acceptance to ensure accurate and verifiable results.
Pinion Deposit Video