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File Created: 31-Jul-1991 by Garry J. Payie (GJP)
Last Edit:  31-Mar-2022 by Karl A. Flower (KAF)

Summary Help Help

BCGS Map 092J076
Status Developed Prospect NTS Map 092J15W
Latitude 050º 47' 28'' UTM 10 (NAD 83)
Longitude 122º 48' 36'' Northing 5626613
Easting 513392
Commodities Gold, Silver, Lead, Zinc, Antimony Deposit Types I01 : Au-quartz veins
Tectonic Belt Coast Crystalline Terrane Cadwallader, Bridge River
Capsule Geology

The area of the Peter vein is underlain by Mississippian to Jurassic Bridge River Complex (Group) and Upper Triassic Cadwallader Group sediments and volcanics which are transected by a major north trending, steeply southwest dipping fault known as the Cadwallader Break. The fault is a deep-seated crustal structure related to the Fraser fault system to the south. The fault is intruded by small granitic to ultramafic stocks and dykes. Diorite to gabbro of the Permian Bralorne Igneous Complex, in which most of the quartz veins are hosted, intrudes the Cadwallader Break as an elongate body. Refer to the Bralorne mine (092JNE001) for further details of the geology.

In 1973 additional work was started in the area of the Peter vein where surface work indicated potential mineralized structures. Surface drilling and trenching located the Peter vein and in 1987 an adit was collared to intersect the structure about 33 metres below surface; 65 metres of drifting on the vein averaged 13 grams per tonne gold across an average width of 3.4 feet (Assessment Report 27355).

The Peter vein was first opened up on surface in 1987, but apparently had been known from the underground development of the Bralorne mine's King vein. Trenching has now traced the vein along its northwest strike for over 550 metres, with widths varying from a few centimetres to 3 metres. One sample graded 102.86 grams per tonne gold over 2.8 metres (George Cross News Letter No.111, June 10, 1991). The best intersection from 14 holes drilled on the vein graded 16.46 grams per tonne gold over 2.7 metres (George Cross News Letter No.111, 1991). Further drilling proved the existence of the vein to a depth of 167 metres. The type of mineralization that occurs within the vein was not reported but may be assumed to be like that of the King vein for which many similarities have been confirmed.

The parallel Millchuk vein, 300 metres to the north, has been traced by trenching for 670 metres, with the best chip sample grading 10.29 grams per tonne gold over 1.5 metres (George Cross News Letter No.111, 1991).

Two veins on the Loco prospect are estimated to contain 362,800 tonnes grading 17.2 grams per tonne gold (Information Circular 1995-1, page 15).

The Peter vein was drifted along a strike length of 35 metres on the 800 level, 305 metres below the surface (see Bralorne, 092JNE001).

About 1814 tonnes of ore were extracted from surface on this zone late in 1996 with grades of 3.4 to 10.2 grams per tonne gold. Included in this material is unknown tonnage of sulphide enriched quartz vein material assaying 572.4 grams per tonne gold with silver values of 1371 grams per tonne. This material plus 2267 tonnes stockpiled will be used as mill feed when the Bralorne mill starts up (George Cross News Letter No.28, February 10, 1997).

The property is held by Bralorne Pioneer Gold Mines Ltd. and International Avino Mines. Ltd.

Bralorne-Pioneer Gold Mines Ltd. performed trenching exploration during 2002 and extended the Peter vein by 366 metres to the west. Drilling began on the Peter vein in November, 2002 and 9 holes were completed. Hole #8 returned an assay of 52.28 grams per tonne gold over 1.37 metres.

In 2003, Bralorne-Pioneer Gold Mines Ltd resumed construction of a 125 tonne-per-day pilot plant test mill and began construction of a tailings pond. Trenching and drilling were done in the area of the Peter, Cosmopolitan and Big Solly veins on the Loco property. Bralorne also did rehabilitation work on the 800 level in the Bralorne mine. In early 2004, Bralorne plans to mine a 6000 to 8000 tonne bulk sample from the Peter vein, which will be processed in the pilot mill. The drilling program consisted of 15 NQ holes totaling 1751.5 metres and was designed to provide additional information on the Peter vein and associated structures in the area beneath the upper level workings and also along strike to the north and south.

In 2004, Bralorne completed construction of a tailings pond to allow five years of production, and began test milling using a small (approximately 100 tonne-per-day) gravity/flotation pilot plant. As of mid-August more than 10 000 tonnes had been processed through the plant, producing about 141 dry tonnes of concentrate. Most of the material processed was from low-grade stockpiles with some additional material coming from the Upper Peter vein (4230 adit) on the Loco (or Cosmopolitan) property. A small amount of dore gold was produced onsite, and about 20 tonnes of flotation concentrate was shipped.

Bralorne also did underground development to prepare a stope on the Peter vein on the 800 level of the King mine workings, and drove a decline from the 4230 level to access a new level 30 metres deeper. Surface drilling returned encouraging results from the 51B vein in the gap between the Bralorne and Pioneer mine workings, and a new 180-metre-long adit is being driven to access this area.

The following resource estimates were reported in The Northern Miner (April 4, 2005). It is not known if they are NI-41101 compliant. The measured resource in the Peter vein comprises 3,425 tonnes grading 8.4 grams gold per tonne. The Peter vein has been drifted on top and bottom with samples taken at 1.8 metre intervals across the exposed vein. The upper Peter vein contains another 22,738 tonnes grading 9.7 grams gold in the inferred category.

EMPR BULL 108, p. 133
EMPR EXPL 1991-85-88; 1995-58-59; 1997-34; 2002-41-50; 2003-54; 2004-58,59
EMPR FIELDWORK 1974, p. 35; 1986, pp. 23-29; 1987, pp. 93-104, pp. 115-130; 1989, pp. 45-51, pp. 53-72; 1990, pp. 75-83
EMPR INF CIRC 1994-19, p. 15; 1995-1, p. 15; 1996-1, p. 17; 1997-1, p. 21
EMPR OF 1987-11, 1989-4
EMPR PF (Statement of Material Facts, Avino Mines and Resources, August 1, 1991; Property description by B.N. Church, 1990; Plan map of trenches)
GSC OF 482
GCNL #90,*#111, 1991; #28(Feb.10), 1997
CMJ Mar.17, 2004
N MINER March 26, 1981; Nov., Oct.14, 1982; Apr.7,21, Nov., Dec. 8, 1983; March 29, July 26, Sept.6, 1984; Jan.10, Feb.7, March 7, Sept.9, 1985; Mar.1, 1989; Dec.16, 1991; Feb.17, 1997; Dec.1, 2003; Sept.2, 2004; Apr.4,25, Jun.27, 2005
PR REL Bralorne-Pioneer Gold Mines Ltd., Sept.18, Nov.4,29, 2002; Jan.9, Oct.10, Dec.12, 2003; Jan.19, 22,Mar.29, Apr.13, 2004; (Bralorne-Pioneer Gold Mines Ltd.)
*Talisker Resources Ltd. (2020-09-02): NI 43-101 Technical Report, Bralorne Gold Project, Bralorne, British Columbia, Canada