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File Created: 24-Feb-1987 by Allan Wilcox (AFW)
Last Edit:  17-Dec-1987 by Lori K. Walters (LKW)

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NMI
Name BRUCE, PETE, RANCHER, PEPSI, OUT, MT. HAMILTON Mining Division Nicola
BCGS Map 092I019
Status Showing NTS Map 092I01W
Latitude 050º 08' 21'' UTM 10 (NAD 83)
Longitude 120º 22' 02'' Northing 5557423
Easting 688127
Commodities Copper, Zinc Deposit Types L04 : Porphyry Cu +/- Mo +/- Au
Tectonic Belt Intermontane Terrane Quesnel
Capsule Geology

The property is underlain by a volcanic sequence comprising massive and porphyritic andesitic and basaltic flows and coarse pyroclastics of the Upper Triassic Nicola Group. The east half of the property is underlain by chloritized augite-plagioclase porphyritic andesite while crudely bedded tuffs, lapilli tuffs and agglomerate outcrop on the western half. Northwest trending faults are mapped on the western part of the property. Chlorite and epidote alteration is pervasive. Limonite coats fracture surfaces and occurs in patches.

Porphyry copper mineralization is hosted by lapilli tuff and fragmental andesite units striking northwest and dipping 60 degrees northeast, as exposed in a 35 by 4 metre outcrop. Mineralization consists of quartz and quartz-epidote veins 5 to 20 millimetres in width. The veinlets carry chalcopyrite, minor malachite and epidote. Many of the veins are hematite stained. Fine-grained sphalerite and specular hematite are also evident. The vein system is roughly parallel with bedding in the pyroclastics.

Recent diamond drilling encountered weak, narrow copper mineralization grading 1.44 per cent copper over 0.6 metres (Assessment Report 15232).

Bibliography
EMPR ASS RPT 1972, 10164, 11202, *15232
EMPR GEM 1969-275
EMPR EXPL 1986-C224
EMPR BULL 69
GSC MEM 249
GSC OF *980
GSC MAP 886A
EMPR EXPL 1989-119-134
EMPR PFD 860882, 861634, 861636

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