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File Created: 24-Jul-1985 by BC Geological Survey (BCGS)
Last Edit:  01-Aug-2013 by Karl A. Flower (KAF)

Summary Help Help

NMI
Name IVANHOE, NAHMINT Mining Division Alberni
BCGS Map 092F005
Status Showing NTS Map 092F03E
Latitude 049º 01' 45'' UTM 10 (NAD 83)
Longitude 125º 01' 34'' Northing 5432676
Easting 351896
Commodities Copper Deposit Types
Tectonic Belt Insular Terrane Wrangell
Capsule Geology

The Ivanhoe occurrences are located about 100 metres apart just north of Snug Basin.

The area is underlain by Upper Triassic Vancouver Group rocks consisting of Karmutsen Formation volcanics, overlain to the east by a north trending band of Quatsino Formation limestone. The limestone band is bounded on the east by Lower Jurassic volcanics of the Bonan- za Group. The strata is intruded by diorite and granodiorite of the Early to Middle Jurassic Island Intrusions. The limestone involved in this skarn deposit may be from the Quatsino Formation or from limestone beds found in the upper part of the Karmutsen Formation.

At an elevation of 90 metres, a 70 metre tunnel has been driven to a limestone contact. At about 24 metres from the entrance a crosscut was made opening up about 90 centimetres of low-grade ore. Another tunnel farther up the mountain was driven in for 30 metres through limestone, cutting copper and iron sulphides. The tunnel was not considered far enough in to cut the orebody. About 90 centimetres of iron and copper sulphides, with about 10 centimetres of talc was exposed on the wall.

About 90 metres from this point, an outcrop of chalcopyrite, bornite and tetrahedrite occurs. A shaft about 6 metres deep shows stringers of bornite all the way down with 90 centimetres of epidote carrying blebs of chalcopyrite.

Ninety metres further, there is another showing of chalcopyrite traceable for about 7.6 metres.

In 2007 through 2012, Nahminto Resources completed a program of prospecting, geological mapping, geochemical sampling, a ground magnetometer survey and airborne geophysical surveys on the area as the TJM claims, apart of the Nahmint property.

Bibliography
EMPR AR *1908-142; 1909-146
EMPR ASS RPT 29252, 29574, 29660, 30799, 31248, 31708, 32603, 33092
EMPR OF 1988-28
GSC MAP 17-1968; 1386A
GSC OF 463
GSC P 68-50; 71-36; 72-44
EMPR PFD 700045, 827017

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