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File Created: 28-Mar-1988 by Jennifer W. Pell (JP)
Last Edit:  01-Jan-0001 by BC Geological Survey (BCGS)

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NMI
Name VALHALLA DOME Mining Division Slocan
BCGS Map 082F073
Status Showing NTS Map 082F12E, 082F13E, 082F14W
Latitude 049º 45' 00'' UTM 11 (NAD 83)
Longitude 117º 30' 04'' Northing 5510956
Easting 463901
Commodities Sillimanite, Garnet Deposit Types P02 : Kyanite-sillimanite schists
Tectonic Belt Omineca Terrane Ancestral North America
Capsule Geology

Coarse metapelitic gneisses containing abundant sillimanite and garnet are reported from the Valhalla and Passmore dome area west of Slocan Lake (Reesor, 1965). Valhalla and Passmore are two of a series of domal structures containing gneisses which form part of the core of the Shuswap Metamorphic Complex. The core of the Valhalla dome comprises orthogneisses which are mantled by hybrid gneisses predominantly metasedimentary in origin. Sillimantite locally comprises 20 to 25 per cent of sillimanite-garnet-biotite gneisses of the hybrid gneiss zone, particularly along the east flank of the Valhalla dome and may be very coarse. In the vicinity of the Passmore dome coarse sillimanite may occur in knots or groups of crystals over 2.5 centimetres long and 1 centimetre wide. These gneisses may also locally contain up to 30 per cent garnet, with an average crystal size of 0.5 centimetre or less. Garnet may also be present in interbedded amphibolitic rocks in amounts up to 40 per cent (Reesor, 1965).

Bibliography
EMPR OF 1988-26
GSC BULL *129, pp. 18, 81

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