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File Created: 24-Jul-1985 by BC Geological Survey (BCGS)
Last Edit:  09-Apr-2015 by Trygve Hoy (TH)

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BCGS Map 082E059
Status Showing NTS Map 082E09W
Latitude 049º 34' 58'' UTM 11 (NAD 83)
Longitude 118º 23' 27'' Northing 5493173
Easting 399465
Commodities Copper, Platinum, Palladium Deposit Types
Tectonic Belt Omineca Terrane Plutonic Rocks
Capsule Geology

The BUFFALO showing is located on Lot 920s, approximately 2.7 kilometres northwest of Mount Franklin.

The showing consists of several outcrops of mineralized shonkinite-pyroxenite, part of the middle Jurassic, alkalic, zoned Averill Plutonic complex. It is suggested that the pyroxenite is a basal cumulate which differentiated from an early monzonite intrusion. This early intrusion was then intruded and engulfed by a pyroxene-syenite intrusion which cooled to form a coarse-grained syenitic core. Calcite veining, and biotite and chlorite alteration of the pyroxenite is noted. Chalcopyrite is sparsely distributed in small syenite veins within the pyroxenite. Pyrite is disseminated near the outer margin of the pyroxenite.

The BUFFALO claim was recorded in 1904, and Crown granted in 1910 to James McDonald. No work is recorded on the showing during the early 1900s when the Franklin camp was very active. However, a shaft and several pits are believed to date from that period.

In 1918, the BUFFALO showing was investigated for its platinum potential. A sample of pyroxenite containing pyrite and chalcopyrite, was collected from the shaft dump. This sample assayed 6.51 grams per tonne platinum (Thomlinson, 1920).

In 1964, Franklin Mines Ltd. acquired much of the Franklin camp and their subsequent exploration program included channel sampling of the BUFFALO showing. The weighted average of 47.8 metres of channel sampling of the pyroxenite assayed 0.157 per cent copper, and 76.8 metres of sampling assayed 0.1 gram per tonne platinum (Assessment Report 637). Several magnetic anomalies detected in this area were found to be disseminated magnetite in the pyroxenite and along the margins of the syenite.

In 1985-86, Longreach Resources Ltd. staked and optioned much of the Franklin camp area, including the BUFFALO showing. Longreach carried out an extensive program in 1986, which in the BUFFALO area included geological mapping and geophysical surveys. Several magnetic highs and VLF-EM conductors were identified. A diamond-drill program in 1986 included 5 holes, for a total of 364 metres, in the BUFFALO area. Drillhole DDH-29 included 3.05 metres, between 15.24 metres and 18.29 metres, which assayed 0.055 per cent copper, 0.081 gram per tonne platinum and 0.121 gram per tonne palladium (Assessment Report 15964).

In 1987, Longreach's property, now known as the PLATINUM BLONDE property, was optioned to Placer Dome Inc. who proceeded to carry out a major exploration program. The focus of most of this work was the MAPLE LEAF (082ENE009) and the AVERILL (082ENE007) occurrences to the southeast; little attention was paid to the BUFFALO showing.

EMPR AR 1910-248; 1914-353; 1918-207; 1964-112; 1965-172
EMPR ASS RPT *637, 15172, 15746, *15964, 15981, *17273
EMPR EXPL 1987-C32; 1988-C22
EMPR OF *1986-7; 1994-8
EMPR PF (See General PF - Franklin Mining Camp File; See PF 082ENE002 - Platinum Blonde Property, News Clippings, 1986-87)
GSC MAP *97A; *133A; 6-1957; 1701A; 1712A; 1713A; 1714A; 1736A
GSC MEM *56, p.154,155,173
GSC OF 409; 736; 1969
Geoscience BC Report 2013-1, pp. 91-102.
Geoscience BC Map 2013-07-1
GCNL #51, 1987
Placer Dome File
McDougall, B.W.W. (1926): The D.A. Group of Mineral Claims and the Dynamo Mineral Claim Deadwood and Skylark Camp, Boundary District, Greenwood Mining Division
Thomlinson, W. (1920): *Mineral Investigations - Platinum, Munitions Resource Commission, Canada, Final Report, pp. 161-166.