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File Created: 05-Dec-2013 by Karl A. Flower (KAF)
Last Edit:  09-Dec-2013 by Karl A. Flower (KAF)

Summary Help Help

NMI
Name EAGLE GORGE 1, EAGLE GORGE 2, EG-1, EG-2 Mining Division Nanaimo
BCGS Map 092F084
Status Showing NTS Map 092F14W
Latitude 049º 51' 13'' UTM 10 (NAD 83)
Longitude 125º 20' 37'' Northing 5524989
Easting 331539
Commodities Copper, Silver, Gold Deposit Types
Tectonic Belt Insular Terrane Wrangell
Capsule Geology

The Eagle Gorge 1 and 2 occurrences are located on Wowo Creek, where six copper bearing quartz vein-breccia showings occur along a 2 kilometre section of the creek.

The area is underlain by block faulted Upper Triassic Karmutsen Formation volcanics (Vancouver Group), which are unconformably overlain by Upper Cretaceous Comox Formation sediments (Nanaimo Group). The Karmutsen rocks consist of very gently dipping thick amygdaloidal basaltic flows with interbedded pillow lavas, pillow breccias and very minor intercalated tuffaceous beds. The Comox rocks are composed of fairly flat- lying conglomerates and sandstones with interbedded siltstone and shale.

The Eagle Gorge 1 occurrence is a narrow quartz-carbonate vein-breccia with the strongest mineralization across 0.15 to 0.20 metre. The vein-breccia system trends 130 to 140 degrees and dips 75 degrees. The vein-breccia pinches and swells and this or parallel systems could extend for approximately 250 metres. The breccia has been impregnated by quartz showing some open space filling and contains chlorite and sericite pods. Mineralization consists of spotty chalcocite accompanied by malachite staining, cuprite and native copper in hairline fractures. In 1984, a sample (8306-1) assayed 2.03 per cent copper and 17.9 grams per tonne silver with trace gold (Assessment Report 11461).

The Eagle Gorge 2 occurrence is located 200 metres downstream of the Eagle Gorge 1 occurrence. Locally, an iron-stained quartz-carbonate (with possible feldspar) zone contains disseminated pyrite. The zone follows bedding and pinches and swells from 0.4 to possibly greater than 1 metre in the creek. Panned concentrate below this zone produced garnet, diopside (?), epidote, very minor magnetite and flecks of very fine gold (Assessment Report 13602).

In 1982 and 1983, L. Bershire completed programs of prospecting, rock sampling and minor trenching. In 1984, Iron River Resources completed a program of geological mapping and rock sampling.

Bibliography
EMPR ASS RPT 11199, 11461, *13602
EMPR EXPL 1983-209; 1985-C157
GSC MAP 2-1965; 17-1968; 1386A
GSC OF 463
GSC P 68-50; 72-44; 80-16

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