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File Created: 07-Nov-1997 by George Owsiacki (GO)
Last Edit:  11-Jun-2015 by Karl A. Flower (KAF)

Summary Help Help

NMI
Name WATERFALL, VALLEY, APPLE Mining Division Vancouver
BCGS Map 092K084
Status Showing NTS Map 092K14W
Latitude 050º 49' 16'' UTM 10 (NAD 83)
Longitude 125º 19' 04'' Northing 5632492
Easting 336747
Commodities Copper, Molybdenum, Zinc, Lead, Gold, Silver Deposit Types L04 : Porphyry Cu +/- Mo +/- Au
H04 : Epithermal Au-Ag-Cu: high sulphidation
Tectonic Belt Coast Crystalline Terrane Plutonic Rocks
Capsule Geology

The Waterfall occurrence is located approximately 13 kilometres north east of Stafford Lake, in the western head waters of the Apple River and at an elevation of approximately 1525 metres. The Valley occurrence is located approximately 550 metres to the north east, at an elevation of approximately 1200 metres.

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.

At the Waterfall zone, pyrite and chalcopyrite± galena± sphalerite± molybdenite- bearing, vuggy quartz veins occur singly or as stock works in diorite to granodiorite. Pyrite and chalcopyrite with lesser galena and sphalerite occur as blebs and masses in the veins, whereas molybdenite occurs as disseminations within the host rock along the margins of the veins. Narrow envelopes of clay-altered host rock occur adjacent to the veins.

In 1990, grab rock samples yielded up to 1.04 grams per tonne gold, 0.28 per cent copper, 0.34 per cent lead and 1.12 per cent zinc (Assessment Report 21774).

In 2012, a small chip sample (KI1233) assayed 0.059 per cent molybdenum (Assessment Report 33486).

At the Valley zone, porphyry-style mineralization occurs in and adjacent to quartz veins. Pyrite, chalcopyrite and molybdenite occur in narrow veins composed of white, vuggy quartz that characteristically contain coarse blebs of pyrite with lesser chalcopyrite. Minor, fine-grained molybdenite is present along the margins of veins. Narrow envelopes of sericite and clay alteration locally surround the veins. Fine- grained, disseminated pyrite is present locally in the altered wallrock adjacent to the veins. The veins trend north- north east and east-southeast, and generally have steep to moderate dips.

In 1990, grab rock samples yielded up to 2.9 grams per tonne silver, 0.10 per cent copper and 0.07 per cent molybdenum (Assessment Report 21774).

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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