The Quash showing is underlain by volcanic and sedimentary rocks of the Upper Triassic Stuhini Group. These are described as felsic (rhyolitic) and andesitic volcanics, the latter consisting mainly of ash tuffs. The majority of the area is underlain by sediments with a minor volcanic fraction. The sediments consist of sandstone, conglomerate, siltstone, argillite and limestone. Dike to sill to plug-like bodies of fine to medium-grained hornblende (plus/minus biotite) feldspar phyric diorite intruded the strata in the Early Jurassic. Felsic dikes intrude the strata as well.
The sediments are seen to be folded into a west-plunging, property-wide anticline with increasing minor folds to the north.
Two trenches were excavated in 1991 about 350 metres apart. Disseminated fine-grained pyrite, galena and sphalerite were reported in minor concentrations at both localities. Northwest trending galena and sphalerite mineralized carbonate stringers and veinlets were seen to crosscut the siltstones and diorite dikes. Values up to 0.074 gram per tonne gold, 6 grams per tonne silver, 0.11 per cent lead and 0.59 per cent zinc were obtained from trench samples (Assessment Report 21832, page 12).
The most significant result from the 1989 program was a pyritic grab sample of altered volcanic rock that occurs in the vicinity of the above trenches. This sample assayed 2.37 grams per tonne gold, 4.4 grams per tonne silver, 0.06 per cent copper and 0.036 per cent arsenic (Assessment Report 19444, page 4). A quartz-ankerite breccia from this gossan yielded 1.8 per cent zinc but only a trace of gold. A chalcopyrite-bearing quartz stringer network in andesite yielded 0.5 per cent copper but insignificant gold.
Work History.
The Quash occurrence was staked as the Quash claims in 1988 by Noranda Exploration Company Ltd. A brief 1989 field program involved stream sediment sampling, rock sampling and prospecting. Noranda followed up in 1990 with a soil geochemistry program (collecting 1491 samples) and geophysics consisting of 39.25 kilometres of ground magnetics and 18.5 kilometres of VLF-EM. Ascot Resources Ltd. assumed the operation of the Quash claims in 1991 and conducted an induced polarizaion survey (IP) (6.9 kilometres), a ground magentics survey (6.9 kilometres) and a geochemical program consisting of 98 rock and 203 soil samples. Eighty metres of excavation were completed in two trenches that same year. No further assessment work has been filed to date (September 1998).
During 2011 through 2014, New Chris Minerals completed programs of prospecting, soil and rock sampling, geological mapping, a 14 line-kilometre ground induced polarization survey and 2379 line-kilometres of airborne geophysical surveys on the area as the Tatogga Lake project. The IP survey found that the copper-in-soil anomaly at Pass Gossan was associated with a chargeability low and that the lead and zinc-in-soil anomaly at Quash was associated with a chargeability high.
In 2017, GTGold Corp conducted prospecting traverses around the Saddle and Quash-Pass area, collecting 46 soil samples. Prospecting soil samples were not collected on a grid, but anywhere the prospectors’ field assistants could collect one as the worked with the prospectors. During prospecting traverses, 177 rock samples were collected in the Saddle area and surroundings in the Quash-Pass area. Rock sampling in the Quash-Pass area discovered strong gold and copper mineralization in the next drainage to the south of Pass Gossan. Rock sampling was done arround the Central (104G 166) and Pass Gossan (104G 166) showings.
In 2018, GTGold Corp explored the Tatogga Property in 2018 with 24,759 of diamond drilling on the Saddle North and Saddle South prospects where both targets were reported to have intersected strong mineralization. IP surveys occurred at the Saddle North and Saddle South and over some parts of the Quash-Pass area about 9 kilometres to the southwest of the Saddle area. A total of 2254 line-kilometres of airborne magnetic and radiometric surveying covered the Saddle North and South Saddle areas and extended to the southwest covering the Quash (104G 161), Violet (104G 164), Petal (104G 165), Pass Gossan (104G 166) and Central (104G 167) occurrences. A 45 line-kilometre IP survey covered Saddle South and the western part of Saddle North. A second IP survey consisted of an 11 line-km survey over Pass Gossan showing (104G 161) and the area immediately north and northeast of the Central showing (104G 167). Prospecting and soil and rock sampling occurrence in the Saddle and Quash-Pass areas. During prospecting traverses, 228 rock samples were collected in the Saddle area & surroundings & in the Quash-Pass area. Five hundred and seventy-two soil samples were collected around the Saddle & Quash-Pass areas.
See Saddle North (104G 432) and Saddle South (104G 433) for related geological and historical information on the Tatogga property.
