Rock Creek Project
The Rock Creek gold prospect is a Carlin-type target located in the Tuscarora Mountains of north-central Nevada, about 12 miles northwest of the historic mining town of Tuscarora. The Rock Creek gold property represents the largest of Crestview’s properties, consisting of 74 unpatented lode mining claims. There has been historic drilling on the property and historic mining nearby.
The Rock Creek, Divide Mine, and Castile Mountain properties are all in the Tuscarora Mountains, located NE of the prolific Carlin Trend in Elko County, NV. The properties are in close proximity to major gold deposits on 3 sides, with Midas approximately 35 km to the WSW, Goldstrike approximately 45 km to the S, and Jerritt Canyon approximately 30 km to the East.
To date, ninety nine surface samples (rock chip and grab) have been collected at Rock Creek, with a number of samples in the 0.1 g/t to 0.35 g/t Au range and one sample at 0.597 g/t Au. The gold values are supported by anomalous pathfinder element values for silver, arsenic, antimony, barium, and mercury.
The mapping and sampling programs have identified one area where the lithological contact target is shallower than first believed, and an additional target in the north end of the project where anomalous gold and pathfinder elements cluster around a large area of stockwork quartz and vein breccia.
The geological mapping and geochemical sampling results support our initial conceptual gold targets. In the case of the mapping, we have identified one area where the lithological contact target is shallower than first believed. The mapping and sampling have also identified an additional target in the north end of the project where anomalous gold and pathfinder elements cluster around a large area of stockwork quartz and vein breccia.
Rock Creek hosts two parallel north-south gold mineralized vein-breccia structures which run the length of the property. Historic drill data for the project shows the early drilling encountered gold mineralized Paleozoic silty carbonate rocks at depth and proximal to the structures. The Paleozoic se sedimentary rocks share many of the characteristics of the favorable gold host rocks found on the Carlin Trend; specifically, those at the Meikle mine located approximately 20 miles (32 km) to the south. These deep reaching structures acted as a plumbing system to allow gold mineralizing fluids into the favorable host rocks as found by the shallow early drilling on the project. None of these early holes tested the favorable rocks below a depth of 500 ft. (152 meters) as most of the holes were terminated much sooner. Where these Paleozoic rocks are proximal to the structures represent excellent drill targets.
The favorable lower to middle Paleozoic calcareous siltstone rocks occur at a much shallower depth than first hypothesized, at least on the south end of the property. This shallow occurrence of these rocks will allow for initial testing our target concept with less costly shorter holes, which will in turn allow us to better position additional drill holes.
Gold mineralization is found in silica flooded, quartz stockwork veins and vein breccias at the andesite to latite flows at the contact with the surrounding package of rhyolite to dacite tuffs and flows and appears to flank the andesitic units. Gold mineralization also occurs at the contact of the rhyolite to dacite tuffs and flows with the calcareous siltstone. One large vein breccia zone occurs within the calcareous siltstone slightly inboard of the siltstone-volcanic rock contact. It is suspected the andesite-rhyolite/dacite contact underlies this vein occurrence in the calcareous siltstone.
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