MINFILE Mineral Inventory

MINFILE Record Summary

MINFILE No 092HNE012

File Created:	24-Jul-1985	by	BC Geological Survey (BCGS)
Last Edit:	08-Mar-1992	by	Peter S. Fischl (PSF)

SUMMARY

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		NMI
Name	BONANZA, GRASSHOPPER	Mining Division	Similkameen
		BCGS Map	092H056
Status	Showing	NTS Map	092H10W
Latitude	049º 32' 32''	UTM	10 (NAD 83)
Longitude	120º 53' 01''	Northing	5489887
		Easting	653105
Commodities	Copper	Deposit Types	M05 : Alaskan-type Pt+/-Os+/-Rh+/-Ir L01 : Subvolcanic Cu-Ag-Au (As-Sb)
Tectonic Belt	Intermontane	Terrane	Quesnel, Plutonic Rocks

Capsule Geology

This copper showing is on the southeast slope of Grasshopper Mountain, 1.1 kilometres east-southeast of the mountain's summit and 9 kilometres west of the town of Tulameen.

The Bonanza occurrence comprises a breccia zone, 60 metres wide, developed along the contact between peridotite of the Early Jurassic Tulameen Ultramafic Complex, a zoned Alaskan-type intrusive complex, and schist and argillite of the Upper Triassic Nicola Group.

Mineralization occurs in the western part of the zone, close to the intrusion and consists of pyrite and chalcopyrite accompanied by calcite.

Bibliography

EMPR AR *1928-268

EMPR ASS RPT 128, 2345, 7944, 10063, 14448, 27009

EMPR EXPL 1988-B71-B81

EMPR FIELDWORK 1987, pp. 281-294

EMPR OF 1986-7, pp. 6-11; 1988-25; 1990-27, pp. 33,34

EMPR P 1992-6

GSC MAP 46A; 888A; 889A; 1386A; 41-1989

GSC MEM 26; *243, p. 102

GSC P 85-1A, pp. 349-358

CJES Vol. 6, pp. 399-425 (1969); Vol. 24, pp. 2521-2536 (1987)

Findlay, D.C. (1963): Petrology of the Tulameen Ultramafic Complex, Yale District, British Columbia, unpublished Ph.D. thesis, Queen's University, 415 pages.

EMPR PFD 520617, 520623