Books in Review OGS publishes new book on gold

An 8-year study by the Ontario Geological Survey has culminated in publication of a new book about gold, titled Archean Lode Gold Deposits in Ontario.

Underlining the importance of the book’s subject is the fact that last year alone Ontario mines produced gold valued at more than $1 billion. To date, major lode production in the province has come from the areas of Timmins (56 million oz), Kirkland Lake-Larder Lake (35 million oz), Red Lake (13 million oz), and Beardmore-Geraldton- Longlac (4 million oz).

And the gold deposits at Hemlo are estimated to contain at least 19 million oz gold.

The new OGS report provides a review of the geology of these gold deposits and presents a hypothesis for their formation.

It is presented in two parts. In Part One, a depositional model, evidence from field observations and laboratory studies is used to construct a model to explain the formation of Archean lode gold deposits.

Part Two, a genetic model, addresses theoretical problems of where the gold came from and how it was transported to sites of deposition.

Archean Lode Gold Deposits in Ontario. The 136-page book is available from any mining recorder’s office or from the Ontario government public information centre, Room 1640, 99 Wellesley St. W., Toronto, Ont. M7A 1W3. Price $5.