MINFILE Mineral Inventory

MINFILE Record Summary

MINFILE No 092HSE028

File Created:	18-Dec-1991	by	Peter S. Fischl (PSF)
Last Edit:	28-May-1992	by	Peter S. Fischl (PSF)

SUMMARY

Summary Help


		NMI
Name	HOLDFAST (L.3537)	Mining Division	Similkameen
		BCGS Map	092H038
Status	Showing	NTS Map	092H07E
Latitude	049º 20' 18''	UTM	10 (NAD 83)
Longitude	120º 32' 41''	Northing	5467968
		Easting	678357
Commodities	Copper	Deposit Types	L03 : Alkalic porphyry Cu-Au
Tectonic Belt	Intermontane	Terrane	Quesnel, Plutonic Rocks

Capsule Geology

The Holdfast showing is situated on the Similkameen River, 13.5 kilometres south of Princeton.

The showing is hosted in volcanics of the Upper Triassic Nicola Group, which are extensively intruded by microdiorite, micromonzonite and microsyenite of the Early Jurassic Lost Horse Intrusions.

Chalcopyrite and pyrite occur in a zone 18 metres wide. The chalcopyrite has been altered to malachite and azurite at surface.


Bibliography	EMPR AR 1908-126; 1916-524 EMPR BULL 59 GSC MAP 300A; 888A; 1386A; 41-1989 GSC MEM 171; 243 GSC P 85-1A, pp. 349-358 CJES Vol. 24, pp. 2521-2536 (1987) Montgomery, J.H. (1967): Petrology, Structure and Origin of the Copper Mountain Intrusions near Princeton, British Columbia; unpublished Ph.D. thesis, University of British Columbia