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File Created: 16-Mar-1995 by Chris J. Rees (CRE)
Last Edit:  16-Mar-1995 by Chris J. Rees (CRE)

Summary Help Help

NMI
Name RED Mining Division Liard
BCGS Map 094M042
Status Showing NTS Map 094M05E, 094M05W
Latitude 059º 27' 58'' UTM 09 (NAD 83)
Longitude 127º 45' 30'' Northing 6592612
Easting 570367
Commodities Lead, Zinc, Copper Deposit Types I05 : Polymetallic veins Ag-Pb-Zn+/-Au
Tectonic Belt Foreland Terrane Ancestral North America
Capsule Geology

This minor lead-zinc showing is situated in the Red 1 claim, which straddles the Red River 5 kilometres west of its confluence with the Kechika River (Assessment Report 9325, Map 1).

The area is in the poorly exposed, subdued terrain of the Liard Lowland, immediately northeast of the Northern Rocky Mountain Trench. Outcrop in the property is restricted to the river valley, and consists of sedimentary rocks of probable Cambrian and Ordovician age, with possibly younger or older units, belonging to Ancestral North America (Geological Survey of Canada Maps 46-1962, 1712A, 1713A).

Three informal units have been mapped (Assessment Report 9325). Unit 1, apparently at the base of the sequence, comprises orthoquartzite and sandstone with minor shale and chert. This is overlain by rusty-weathering slaty and carbonaceous mudstones, shale, siltstone and minor limestone of Unit 2. The highest unit, Unit 3, is well exposed in a syncline in the centre of the property, and consists of carbonaceous mudstone and shale, and well-bedded limy mudstone and siltstone. Mapping by the Geological Survey Branch in 1996, identified thes rocks as either Ordovician to Middle Devonian Road River Group or Upper Devonian to Mississippian Earn Group (Geoscience Map 1998-10).

The strike of bedding is quite consistently around 310 degrees, and dips are moderate in either direction. A number of northwest-trending anticlines and synclines with upright axial planes repeat the units across the property, with the limbs of the folds somewhat modified by steep, minor faults. Several fault breccia zones have been found, some of which are associated with mineralization.

Three outcrops of minor mineralization have been found, all on the north side of the river. The occurrence is centred on the most westerly showing, in a 3-metre long zone of breccia near the base of Unit 3. The matrix of the breccia consists of quartz with minor pyrite, galena and sphalerite. About 1 kilometre to the east is another showing, in sandstone of Unit 1. Galena and sphalerite occur in irregular, vuggy quartz veins. Roughly halfway between the two lead-zinc showings is an outcrop of Unit 2 with sparse chalcopyrite and pyrite.

All rock samples from the property yielded very low assay values. A sample of a smithsonite-bearing calcite vein assayed 3.08 per cent zinc and 4.76 per cent barium (Geoscience Map 1998-10).

Bibliography
EM BULL 107
EM GEOS MAP 1998-10
EMPR ASS RPT *9325
EMPR EXPL 1980-452
EMPR FIELDWORK 1996, pp. 125-144
EMPR OF 1997-14
GSC MAP 46-1962; 1712A; 1713A

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