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File Created: 30-Aug-1985 by Allan Wilcox (AFW)
Last Edit:  05-Dec-2013 by Karl A. Flower (KAF)

Summary Help Help

BCGS Map 092F083
Status Showing NTS Map 092F13E
Latitude 049º 51' 19'' UTM 10 (NAD 83)
Longitude 125º 32' 05'' Northing 5525622
Easting 317809
Commodities Copper, Silver, Iron, Zinc, Gold Deposit Types
Tectonic Belt Insular Terrane Wrangell
Capsule Geology

The occurrences are located between Mine and Sihun creeks on a north west facing hill side above the former Iron Hill (MINFILE 092F 075) mine.

Volcanics of the Karmutsen Formation are overlain by limestone of the Quatsino Formation, both of the Upper Triassic Vancouver Group. These rocks are cut by the Quinsam granodiorite of the Lower to Middle Jurassic Island Plutonic Suite. The volcanics consist of massive, amygdaloidal and pillow basalts. The limestone is crosscut by numerous mafic dykes and sills.

The contact of the granodiorite with the limestone and volcanics has an overall east-southeast trend. Skarns have formed adjacent to the contact, within the limestones and volcanics. They are fine to medium-grained and consist of garnet, chinopyroxene and epidote, with local development of magnetite in poorly defined bands, occasional pyrite and rare chalcopyrite and sphalerite. The copper mineralization occurs in widely spaced small pods (less than 0.5 metres in diameter) within the magnetite skarn.

In 1984 and 1985, Brinco Mining completed a program of geological mapping and rock sampling on the area as the Bold claims. A grab sample of a mineralized skarn zone assayed 2.5 per cent copper and 8.9 grams per tonne silver (Assessment Report 13003). Another skarn grab sample, 400 metres to the east-southeast assayed 0.29 per cent copper and 2.1 grams per tonne silver (Assessment Report 13003).

In 1988, the area was prospected and sampled by J.P. Loiselle.

In early July 1997, prospecting, hand trenching, outcrop stripping and sampling outlined additional showings of skarn mineralization located southeast and up-hill of the original showing:

1.) The upper Road Pit showing consists of garnet skarn with sulphides. Channel sample results include 0.31 gram per tonne gold, 3.79 per cent copper and 24.4 per cent iron over 1.6 metres and 0.45 grams per tonne gold, 4.36 per cent copper and 30.7 per cent iron over 1.2 metres (Assessment Report 25265).

2.) The Middle Road Pit showing (5525260 North, 318109 East NAD 1983) consists of garnet magnetite skarn with pyrite and chalcopyrite exposed in an old trench and hand stripped outcrop. Channel sample results include 0.75 gram per tonne gold, 1.446 per cent copper and 44.3 per cent iron over 10.90 metres (Assessment Report 25265).

3.) An unnamed showing, located approximately 60 metres west of the Middle Road Pit showing (5525245 North, 318040 East NAD 1983) consists of limestone and a pod of magnetite, pyrite and chalcopyrite within garnet skarn. Channel sample results include 1.720 grams per tonne gold, 3.96 per cent copper and 33.2 per cent iron over 1.1 metres and 1.115 grams per tonne gold, 3.9 per cent copper and 56.8 per cent iron over 1.7 metres (Assessment Report 25265).

EMPR ASS RPT *13003, 13722, 18870, *25265
EMPR EXPL 1984-167; 1985-156
EMPR OF 1988-28
GSC MAP 2-1965; 17-1968; 1386
GSC OF 463
GSC P 68-50; 72-44; 71-36