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File Created: 15-Oct-1990 by Tom G. Schroeter (TGS)
Last Edit:  11-Dec-2020 by Karl A. Flower (KAF)

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Name BRENDA (CREEK ZONE), CREEK ZONE, BRENDA 1-8, JAN 2, POCK, TOM, TOM 3-5, JAN 1-2, HANS, MAX, MAX 1-3 Mining Division Omineca
BCGS Map 094E026
Status Prospect NTS Map 094E07W
Latitude 057º 16' 10'' UTM 09 (NAD 83)
Longitude 126º 52' 29'' Northing 6349380
Easting 628159
Commodities Silver, Gold, Lead, Zinc, Copper Deposit Types H05 : Epithermal Au-Ag: low sulphidation
Tectonic Belt Intermontane Terrane Stikine
Capsule Geology

The Brenda prospect (Creek zone) is located along Jock Creek approximately 7.5 kilometres northeast of the Shasta occurrence (094E 050), some 280 kilometres north of Smithers. There are 4 mineralized zones on the Brenda property: the Creek zone, the White Pass area/Brenda zone (094E 147), the EB zone (094E 148) and the Takla zone (094E 146).

The prospect lies within the Omineca-Cassiar mountains at the southern end of the Toodoggone gold camp. The Brenda prospect is situated within a Mesozoic volcanic arc assemblage which lies along the eastern margin of the Intermontane Belt, a northwest-trending belt of Paleozoic to Neogene sediments, volcanics and intrusions bounded to the east by the Omineca Belt and to the west and southwest by the Sustut and Bowser basins.

Permian Asitka Group crystalline limestones are the oldest rocks exposed in the region. They are commonly in thrust contact with Upper Triassic Takla Group andesite flows and pyroclastic rocks. Takla volcanics have been intruded by the granodiorite to quartz monzonite Black Lake Suite of Early Jurassic age and are in turn unconformably overlain by or faulted against Lower Jurassic calcalkaline volcanics of the Toodoggone Formation, Hazelton Group.

The dominant structures in the area are steeply dipping faults which define a prominent regional northwest structural fabric trending 140 to 170 degrees. In turn, high angle northeast-striking faults (approximately 060 degrees) appear to truncate and displace northwest-striking faults. Collectively these faults form a boundary for variably rotated and tilted blocks underlain by monoclinal strata.

The occurrence area is underlain by feldspar hornblende plus or minus quartz-bearing trachyte to latite-andesite flows and lapilli tuffs with minor greywacke and siltstone of the Toodoggone Formation. Toodoggone Formation rocks are intruded by quartz monzonite and fine-grained monzonitic to syenitic dikes (probable intrusive equivalents of the Toodoggone volcanics).

Wallrock alteration consists of intense silica and propylitic alteration, consisting of epidote, chlorite, pyrite, hematite and potassium feldspar, adjacent to quartz-chalcedony stockwork zones. Local intense argillic alteration consisting of limonite, kaolinite, pyrite and manganese oxide also occurs within quartz-chalcedony breccia zones.

Quartz-chalcedony breccia and veins occur in several silicified areas at the Brenda prospect. The veins consist of colourless to light grey-coloured quartz and chalcedony. Multistage banding and cockscomb quartz are present. Late-stage calcite occurs in the centre of some veins. Veins contain pyrite (1 to 10 per cent) plus minor amounts of chalcopyrite, galena and sphalerite.

Work History

The area was first staked by Emil Bronlund in 1950 with the discovery of gold-bearing quartz veins along the banks of Jock and Red creeks.

The Brenda claims were staked in 1980 for Canmine Development Company Inc. In 1981, Canmine carried out a program of geology and geophysics. In 1984, hand trenching and prospecting was conducted. In 1985, Canmine optioned the property to Canasil Resources. Detailed mapping, geophysical surveys and soil sampling was conducted along Jock Creek. In 1987, trenching and geochemical surveys were completed in a joint venture with Cyprus Gold Canada Inc. Chip samples from a trench yielded up to 0.125 gram per tonne gold and 64.3 grams per tonne silver over 1.0 metre, while four grab samples yielded values of up to 0.640 gram per tonne gold and 135.5 grams per tonne silver (Assessment Report 15555).

A drill program in 1988 consisted of 4 holes for 426.22 metres. These holes intersected chalcopyrite, sphalerite, galena and pyrite mineralization (up to 30 per cent by volume over short widths) in a zone of strongly kaolinite, silica and epidote-altered quartz- chalcedony stockwork breccia and veins across widths of 2.65 metres to 14.5 metres. Anomalous silver, lead and zinc were obtained in all four holes. The best weighted average silver intersection of 20.2 grams per tonne over 7.5 metres occurs in drillhole 88-01 or 34.63 grams per tonne over 3 metres (Assessment Report 18441). Drillhole 88-01 also hosts the best weighted averages for lead with 0.8468 per cent over 1.5 metres and 0.5529 per cent over 3 metres (Assessment Report 18441). The highest zinc value was 1.6525 per cent zinc over 1.4 metres from drillhole 88-02 (Assessment Report 18441). The best weighted average value comes from drillhole 88-03 with 0.3201 per cent zinc over 23.1 metres (Assessment Report 18441). The highest gold value was 0.0104 gram per tonne from drillhole 88-03 (Assessment Report 18441). Also in 1988, surface samples (P5321 and P5315) yielded up to 2.225 per cent copper, 0.603 per cent lead, 3.190 per cent zinc and 38.8 grams per tonne silver (Assessment Report 18441).

In 1989, trenching and geophysical and geochemical surveys were completed on the property.

A program of followup trenching was conducted at the Brenda prospect in 1990 on the Creek zone, the White Pass east zone and the EB zone. A total of eight trenches were excavated but bedrock exposure in these trenches was poor. Assay results from a limited number of rock samples were poor with only one yielding significant results. Sample P5227 collected from trench CG-8 analysed 11.640 grams per tonne gold (Assessment Report 20963).

In 1991 (Assessment Report 22272), hand trenching and rock sampling were completed on the White Pass East zone, the EB zone and the Creek zone. A geochemical survey was completed on the White Pass East zone. Three samples (107166 to 107168) from a hand trench on the Creek zone yielded values varying from 0.084 to 0.275 per cent copper, 0.012 to 0.113 per cent lead, 1.029 to 3.865 per cent zinc and 2.4 to 6.3 grams per tonne silver (Assessment Report 22272).

In 1992, 2 drillholes were completed on the Creek zone, 4 drillholes on the White Pass East zone and 7 holes on the EB zone. Drill hole CR92-01 on the Creek zone yielded intercepts of up to 0.359 gram per tonne gold, 26.8 grams per tonne silver, 0.293 per cent lead and 0.660 per cent zinc over 2.00 metres (from 5.2 to 7.2 metres down hole) and 1.930 grams per tonne gold with 0.610 per cent zinc over 2.0 metres (24.0 to 26.0 metres down hole; Assessment Report 22820).

In 1993 (Assessment Report 23385), Romulus Resources drilled 4 deep holes in the White Pass area (094E 147) on the Brenda zone. During 1994 through 1997, further programs of diamond drilling were performed on the Brenda property, primarily on the Brenda - White Pass (MINFILE 094E 147) zone.

In 2002, Northgate Minerals Corporation optioned the Brenda property from Canasil Resources Inc. A high-resolution airborne magnetic, radiometric and satellite imaging surveys followed by 1650 metres of diamond drilling in four holes on the Brenda - White Pass (MINFILE 094E 147) zone. In 2003, a program of rock and soil sampling and five diamond drill holes, totalling 1481.1 metres, were completed on the Brenda property. In 2004, a further five diamond drill holes, totalling 1445.7 metres were completed. After review of the 2004 data, Northgate returned the property to the vendor.

In 2007 Canasil Resources conducted a 32.2 line-kilometer 3D Induced Polarization survey and five bore holes, totalling 1708 metres, centered over the White Pass (MINFILE 094E 147) zone area. In 2013, Canasil Resources Inc. completed a program of rock sampling and a lone drill hole, totalling 962.6 metres, on the Brenda property.

EMPR ASS RPT 10365ΒΈ*15555, *18441, 19447, *20963, *22272, *22820, 23385, 24628, 25439, 27161, 27422, 27556, 30176, 34999
EMPR EXPL 1975-E163-E167; 1976-E175-E177; 1977-E216-E217;
1978-E244-E246; 1979-265-267; 1980-421-436; 1982-330-345;
1983-475-488; 1984-348-357; 1985-C349-C362; 1986-C388-C414;
1987-C328-C346; 1988-C185-C194
EMPR FIELDWORK 1980, pp. 124-129; 1981, pp. 122-129, 135-141; 1982,
pp. 125-127; 1983, pp. 137-138, 142-148; 1984, pp. 139-145,
291-293; 1985, pp. 167-169, 299; 1987, pp. 111, 114-115; 1989,
pp. 409-415; 1991, pp. 207-216
EMPR GEM 1969-103; 1971-63-71; 1973-456-463
EMPR GEOLOGY 1977-1981, pp. 156-161
EMPR MAP 61 (1985)
EMPR Monthly Report (T. Schroeter: Sept. 1989, Aug. 1995, Aug. 1996)
EMPR OF 2004-4
EMPR PF (Photogeologic Interpretation Map of the Northern Omineca
area, Oct. 1964, Canadian Superior Exploration Limited-in 94E
General File; Plan Survey Map of the Jan 3 Mineral Claim 1:5000
scale, (Sept.16, 1987), de Bruyne, A.A.; Brenda Group Composite
Plan Map 1:10000 scale, (Nov. 1987), Canasil Resources Inc.)
GSC OF 306; 483
GSC P 76-1A, pp. 87-90; 80-1A, pp. 27-32
GCNL #23(Feb.1), 1985; #165(Aug.27), 1986; June 11, July 15, Sept. 1,
1987; Aug. 26, Dec. 1, 1988; Nov. 14, 1989; June 6, 1990; Nov.
19, 1993
ECON GEOL Vol. 86, pp. 529-554, 1991
IPDM Nov/Dec 1983
MIN REV September/October, 1982; July/August, 1986
N MINER October 13, 1986; July 3, 1995
N MINER MAG March 1988, p. 1
V STOCKWATCH Aug. 15, 1966; Aug. 24, Dec. 1, 1988; May 23, July 24,
Aug. 27, 1990; Jan. 14, 1991; Feb. 23, June 14, Aug. 16, Nov. 16,
1993; Feb. 4, 1994; Jan. 6, June, Nov. 22, 1995
W MINER April, 1982
WIN Vol. 1, #7, June 1987
Lane, B.A. (2017-09-12): NI 43-101 Technical Report on the Brenda Gold-Copper Project - White Pass Zone, Brenda Gold-Copper Project