32E04SE0035 - Geology Ontario
32E04SE0035 - Geology Ontario
32E04SE0035 - Geology Ontario
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8<br />
3.0 EXPLORATION HISTORY<br />
3.1 Regional History<br />
During the early 1980's the McDermott gold deposit was discovered<br />
by American Berrick Resources Inc. in Holloway Township along the<br />
McKenna Fault which is a splay fault off the Destor-Porcupine<br />
Fault. The Holt-McDermott mine started production in 1988 and now<br />
is at 1800 tons per day. The present reserves are 5.1 million<br />
tons grading 0.15 oz. per ton gold (N.M. June 10,1991). A new<br />
deposit, the Mattawasaga deposit was discovered about one half<br />
mile east of the shaft during 1991 along the Ghostmont Fault. The<br />
present reserves are two million tons grading 0.18 oz. per ton<br />
gold (N.M. June 10,1991). These deposits consist of mineralized,<br />
altered (silicified, carbonatized) basalts. The gold is<br />
associated with pyrite (N.M. 6/10/91).<br />
The Lightning Zone was discovered in Holloway and Harker<br />
Townships by Noranda, Freewest and Newmont in 1988. The zone<br />
occurs along the mafic-ultramafic volcanic contact just north of<br />
the Destor-Porcupine Fault. The reserves are 5.5 million tons<br />
grading 0.27 oz. gold per ton (N.M. October 7,1991).<br />
The airborne magnetic map 1493 G by the<br />
area.<br />
G.S.C.-O.D.M. covers the<br />
The airborne magnetic and electromagnetic survey of the Matheson-