This article originally appeared in the Fall/Winter 2010 issue of the Ontario Prospector which is published by the Ontario Prospectors Association.
R. S. Middleton is a well-known and respected geophysicist who has been involved with many mining projects around the world and in Canada over the past 40 years.
For an extensive list of articles on this mineral discovery, please go to: Ontario’s Ring of Fire Mineral Discovery
A New Chromite Industry for North America
Ontario has been blessed in that a number of world class mineral discoveries have been made over the past 125 years which has brought wealth and prosperity to its citizens and Canada. These discoveries have sustained thousands of support industries that have manufactured and supplied the implements to extract the metals, industrial minerals and gemstones that form the Mining Industry of Ontario. Revenues from these mining operations make up approximately 30% of government tax revenue and were the foundation and beginning of the financial industry based in Toronto.
The discovery of the Sudbury nickel-copper-cobalt-PGE (Platinum Group Element) deposits at the end of the 19th century are the largest contributor of revenue with a gross metal value of over $190 billion. The multitude of silver mines found in 1903 in Cobalt, Ontario generated millions of ounces of silver with by-product cobalt, arsenic, nickel and bismuth and became the strength of the Toronto Stock Exchange in the early 1900’s. By 1909 prospectors operating from the Cobalt Camp found the famous Porcupine Gold Camp (Timmins) which has now produced over 70 million ounces of gold from 100 years of production.
Prospectors from both Timmins and Cobalt then found the Kirkland Lake – Larder Lake gold mines and the Noranda Camp in Quebec. Also from Timmins the Kidd Creek copper-zinc-silver mine (1963) with a gross metal value reaching $75 billion, the Kamiskotia (1915), Detour gold (1974) and Hemlo (1979) camps were found. Geraldton-Beardmore and the Red Lake gold camps were developed in the 1920’s-1930’s in part with the financial base built by Timmins.