MINFILE Mineral Inventory

MINFILE Record Summary

MINFILE No 102I 013

File Created:	23-Feb-1989	by	Wim S. Vanderpoll (WV)
Last Edit:	09-May-1989	by	Laura L. Duffett (LLD)

SUMMARY

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		NMI	102I9 Tlc1
Name	SOUTH KNOB	Mining Division	Nanaimo
		BCGS Map	102I080
Status	Showing	NTS Map	102I09E
Latitude	050º 42' 59''	UTM	09 (NAD 83)
Longitude	128º 02' 06''	Northing	5618731
		Easting	568125
Commodities	Pyrophyllite	Deposit Types
Tectonic Belt	Insular	Terrane	Wrangell

Capsule Geology

The area is underlain by Lower Jurassic Bonanza Group volcanics. Locally, pyrophyllite-bearing silicified breccia has been interpreted as a volcanic centre (Geology, Exploration and Mining 1974, page 217). Additional centres are found to the southeast (refer to 092L 078 - Hep; 092L 185 - Hushami; 092L 200 - Red Dog; 092L 308 - Pemberton).

The pyrophyllite is thought to be formed as a product of hydro- thermal alteration during low grade regional metamorphism (Open File 1988-19). Other volcanic centres are reported to contain zeolites.


Bibliography	EMPR GEM 1970-254; 1974-216,230,*Fig.29 EMPR OF 1988-19 GSC P 67-1A; 69-1A; 70-1A; 72-44; 74-8; 79-30 GSC OF 9; 170; 463 GSC BULL 242 GSC MAP 4-1974