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File Created: 30-May-1997 by Keith J. Mountjoy (KJM)
Last Edit:  11-Jun-2015 by Karl A. Flower (KAF)

Summary Help Help

NMI
Name APPLE, GRIZZLY, SHANNON, GRIZZLY LAKE, GVP1, GVP2, GRIZZLY GLACIER, GRIZZLY PLATEAU Mining Division Vancouver
BCGS Map 092K084
Status Prospect NTS Map 092K14W
Latitude 050º 50' 57'' UTM 10 (NAD 83)
Longitude 125º 16' 44'' Northing 5635526
Easting 339582
Commodities Gold, Copper, Silver, Zinc, Molybdenum, Lead, Tellurium Deposit Types H04 : Epithermal Au-Ag-Cu: high sulphidation
L04 : Porphyry Cu +/- Mo +/- Au
I05 : Polymetallic veins Ag-Pb-Zn+/-Au
Tectonic Belt Coast Crystalline Terrane Plutonic Rocks
Capsule Geology

The Apple (Grizzly, Grizzly Lake, Grizzly Glacier veins) occurrence is located near the headwaters of Grizzly Creek, a small eastward flowing tributary of the Apple River, at an elevation of approximately 1340 metres. This is approximately 13 kilometres north east of Stafford Lake and between Knight and Bute inlets.

The area is underlain by the Jurassic-Cretaceous Coast Plutonic Complex, which comprises granodiorite, granitoid gneiss, amphibolite and schist. The metamorphic rocks generally occur as small fault-bound pendants. Feldspar porphyry dikes are locally abundant.

The Grizzly vein is described as a massive pyrite and chalcopyrite- bearing quartz vein. The vein is up to 50 centimetres wide and generally composed of massive white quartz, although some narrow veins are vuggy. Massive and ribbons of quartz are common in the vein. Chalcopyrite is uncommon. Alteration envelopes consist of pyritic, clay-altered rock up to 1 metre or more wide. The vein trends southeast and dips shallowly to the southwest. The Grizzly vein has been traced over 150 metres along strike.

In 1989, a chip sample (34952) of mineralized quartz vein and altered wall rocks from the Grizzly vein assayed 1.35 per cent copper, while another chip sample (59036) yielded 1.45 grams per tonne gold and 0.28 gram per tonne silver (Assessment Report 20421).

In 2012, seven chip samples (KI1212 to KI1218) of vein material, over 12 to 50 centimetres, assayed up to 0.225 per cent copper, 23.7 grams per tonne silver and 0.373 gram per tonne gold (Assessment Report 33486).

The Grizzly Lake (GPV1) veins are located on the eastern side of a small lake, approximately 250 metres west- south west of the Grizzly vein. They consist of pyrite-galena bearing; malachite stained, east-west trending, quartz veins hosted in granodiorite. The veins vary from 0.10 to 0.20 metre wide and have been traced for up to 30 metres.

In 1997, chip sample (J96SH1108) collected over a 10 centimetre width of stained vein yielded 36.4 grams per tonne gold, 0.0212 per cent molybdenum and 0.0319 per cent copper (Assessment Report 25216).

In 2010, a rock- chip sample (JT06) assayed 7.058 grams per tonne gold, 898.1 grams per tonne silver, 1.10 per cent lead and 0.519 per cent tellurium over 1.0 metre (Assessment Report 32099).

In 2012, a 0.10 metre chip sample (KI1222) assayed 1.75 per cent lead, 3.00 per cent zinc, 1410 grams per tonne silver, 18.50 grams per tonne gold and 0.080 per cent tellurium (Assessment Report 33486).

The Grizzly Glacier (GVP2) veins are located on the east side of a small glacier at the head of Grizzly Creek, located approximately 350 metres to the south west of the Grizzly vein. It consists of a pyrite-rich quartz vein and sulphide (chalcopyrite?) filled fracture, up to 5 centimetres wide. The zone trends east- west and has been traced for approximately 20 metres.

In 1997, two samples (J96SH1111 and B96SH1208) assayed 1.20 and 3.99 grams per tonne gold, respectively (Assessment Report 25216).

In 2012, a sample (KI1224) assayed 0.32 per cent copper (Assessment Report 33486).

The Apple occurrences were discovered as a follow up exploration program to the 1988 regional geochemical stream sediment sampling program in the Bute Inlet area. The Apple claims were subsequently staked by Placer Dome Inc. in 1989 and explored from 1989 to 1991. Exploration programs consisted of rock and soil sampling, prospecting and geological mapping. In 1997, Tiberon Mineral Ltd. prospected the Grizzly property as the Shannon claims. During 2010 through 2012, St. Elias Mines completed programs of rock, silt and soil sampling and 19 line-kilometres of combined ground electromagnetic and magnetic surveys.

Bibliography
EMPR ASS RPT *20421, 21774, *25216, *32099, *33486
EMPR RGS 22 (1989)
GSC MAP 1386A
GSC OF 480
Placer Dome File

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