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Gold/Mining/Energy : Gold and Silver Juniors, Mid-tiers and Producers -- Ignore unavailable to you. Want to Upgrade?

To: hank2010 who wrote (34119)	2/26/2007 12:11:52 PM
From: E. Charters	Read Replies (2) \| Respond to of 78421

The original Buchans or at least one of its iterations was found by, I was told, self-potential. Yeah olde volt meter and a coupla hundred feet of cable and porous pots. You can make your own. At least that was the story. It was one of the first such successes of geophysics in Canada. The first was apparently Edison at the Creighton Mine. They reason they did not find mine then was because they were not diamond drilling. They sunk a pit and stopped 50 feet short. heritage.nf.ca canadianencyclopedia.ca 72.14.205.104 A company I worked for at one time had this fellow who was in on the original discovery. Renforth? He was 92 at the time. Can't find any documentation of this. This quote on geofizz does NOt support this.. Although by current standards we would class the geophysical methods and standards of interpretation used in base metal exploration up to the 50's as being exceedingly primitive, they did contribute significantly to the discovery of major Canadian ore deposits. Perhaps the earliest well-documented geophysical discovery case history is that of the Buchans, Nfld, polymetallic deposit by Hans Lundberg, in 1922. Early postwar discoveries include the Brunswick M&S and Heathe Steele deposits in New Brunswick, the Quemont and Mattagami deposits in Quebec, the Kidd Creek and Manitouwadge deposits in Ontario, and the Thompson deposit in Manitoba. In discussing mineral discoveries we must not overlook the important role of serendipity. For example, the first major base metal discovery in the Mattagami Lake camp was made using an AEM system that we later found to be intrinsically ill-suited for use in the Canadian Shield. The world-class Athabaska Sandstone uranium camp was opened up as a result of an airborne radiometric survey in 1966, with what we would now call a ridiculously small crystal volume, feeding two single channel threshold spectrometers, on an aircraft that flew far too fast and with too wide line spacing for the scale of the targets involved. Of course, in these case histories it helped greatly to have the privilege of being the first to geophysically explore a highly geologically productive area, even with simple tools. Elephants stand out, sometimes even in dim light, but serendipity also helps! Edison lights up the earth --> In Canada, Thomas Edison, the American inventor, was the first recorded user of the magnetometer on nickel. Near Sudbury, Ontario, shortly after WWI, he noted a strong magnetic anomaly between 2 known nickel-copper deposits on the projection of the same geological contact, but in an area covered by a thick layer of gravel. The shaft sunk on the indicated location did not go deep enough and it was not until some years later that deeper investigations proved the existence of the ore body that had given the magnetic indication. The magnetometer was also used before WWI in areas known to have IRON formations, which are strongly magnetic, in Ontario and Québec. Its use became widespread in the 1930s, both for the direct indication of magnetic ores and for tracing geological contacts under surface covering. EC<:-}