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File Created: 20-Aug-1987 by Trygve Hoy (TH)
Last Edit:  10-May-2018 by Karl A. Flower (KAF)

Summary Help Help

NMI
Name KNEB, NUNATAK, CB 16-2 Mining Division Revelstoke
BCGS Map 082M057
Status Showing NTS Map 082M10E
Latitude 051º 32' 13'' UTM 11 (NAD 83)
Longitude 118º 43' 41'' Northing 5710953
Easting 380152
Commodities Copper, Iron, Zinc, Lead, Silver, Gold Deposit Types
Tectonic Belt Omineca Terrane Monashee
Capsule Geology

The Kneb (CB 16-2, Nunatak) occurrence is located on the north side of a ridge separating Ratchford and Kirbyville creeks.

The area is within the Monashee Complex on the eastern margin of the Shuswap Metamorphic Complex. It is within a mixed paragneiss succession above core gneisses north of Frenchman Cap Dome.

Locally, a gossanous strata bound sulphide occurrence is exposed over a length of 500 metres with a thickness of up to 7 metres. Mineralization is comprised of pods of magnetite, pyrrhotite and chalcopyrite with a hornblende, pyroxene, garnet, fayalite matrix in coarsely crystalline silicified and sericite- altered white marble. Another zone of mineralization, exposed on a nunatak approximately 100 metres to the west, is comprised of sphalerite, galena, chalcopyrite and pyrrhotite mineralization.

In 1998, sampling yielded from 1 to 4 per cent copper with minor values in lead and zinc, while boulder samples from the Nunatak zone to the west yielded up to 12.4 per cent zinc, 15.1 per cent lead, 236.8 grams per tonne silver and 0.54 gram per tonne gold (Assessment Report 26090). In 2010, sampling to the east, near the site of past drilling, yielded up to 0.27 per cent copper from a zone of chalcopyrite, pyrite and magnetite mineralization with malachite staining from a kyanite-sillimite schist, while sampling of float material from the western Nunatak zone yielded up to 0.31 per cent copper, 5.95 per cent lead, 16.08 per cent zinc and 85.7 grams per tonne silver (Assessment Report 32011). In 2015, float samples from the Nunatak zone yielded up to 81.4 grams per tonne silver 2.98 per cent copper, 2.60 per cent lead and 1.27 per cent zinc (Assessment Report 35861).

In 1998 and 1999, Cominco completed programs of prospecting, sampling and ground magnetic and electromagnetic surveys on the area as the Kneb claims. In 2005, Selkirk Metals Holdings completed two diamond drill holes, totalling 396.8 metres, on the area. In 2010 and 2015, programs of prospecting, geological mapping and rock sampling were completed.

Bibliography
EMPR ASS RPT *26090, 27998, *32011, 35861
EMPR BULL *80, p. 84
EMPR FIELDWORK 2000, pp. 85-114
GSC MAP 12-1964
GSC OF 637
GSC P 71-29
EMPR PFD 884646

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