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File Created: 12-Oct-1994 by Chris J. Rees (CRE)
Last Edit:  20-Oct-1994 by Chris J. Rees (CRE)

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Name SCAT Mining Division Liard
BCGS Map 094N074
Status Showing NTS Map 094N14W
Latitude 059º 47' 59'' UTM 10 (NAD 83)
Longitude 125º 23' 33'' Northing 6631530
Easting 365765
Commodities Zinc, Silver, Lead, Fluorite, Barite Deposit Types
Tectonic Belt Foreland Terrane Ancestral North America
Capsule Geology

The Scat showing consists of minor lead-zinc-barite mineralization in black slate. The occurrence is centred on a mineralized outcrop on Scatter River on the Scat 4 claim, in the Caribou Range in the Northern Rocky Mountains, 85 kilometres west-northwest of Nelson Forks (Assessment Report 10810, Map 2). Interest in the area was generated by widespread soil and silt geochemical anomalies, although they are generally sporadic and weak.

The area is underlain by three units: well-bedded limestone of the Middle Devonian Dunedin Formation; slate of the Upper Devonian Besa River Formation; and shale, siltstone and quartz sandstone of the Mississippian Mattson Formation (Assessment Report 10810; Geological Survey of Canada Open File 673). All are part of Ancestral North America (Geological Survey of Canada Map 1713A). The rocks generally strike north and dip gently east. A few minor faults are present, striking approximately 040 degrees.

The most important unit is the Besa River Formation, which is mainly black, carbonaceous slate with interbedded siliceous rocks. The slate locally contains nodules and concretions of barite, fluorite, chert or pyrite, or a combination of these; bitumen was also noted (Assessment Report 10810). Barite nodules, which may consist of coarse, bladed crystals, are characteristic of the formation, and may reach 40 centimetres in diameter. Some outcrops are marked by ferricrete, and iron seeps occur locally.

The area was explored to discover the source of lead, zinc and silver anomalies found in stream sediments. The most anomalous were traced to siliceous beds or to lenses or nodules of chert or cherty mudstone in the Besa River slate containing veins of calcite, barite and pyrite, with minor sphalerite, galena and quartz. A sample from one such outcrop (on which the occurrence is centred) from near the top of the formation was analysed at 0.31 per cent zinc (Assessment Report 10810).

No single stratigraphic horizon carried a statistically significant increase in any of the metals of interest (Assessment Report 10810). Anomalies of respective metals in the soil sample survey generally do not coincide.

EMPR EXPL 1982-352
GSC OF 673