Picks & Pans: Detecting Micro-Nuggets
October 2005 by Martin H. MilasAny detector specifically designed to respond to small gold will do. The best ones are the lightest ones with the smallest coils.
• Pan American Silver Corp.
• Mountain Province Mining Inc.
• Canyon Resources Corp.
The discovery of gold at Alder Creek, centrally located in Madison County, Montana, was unusually well documented, with the date and time placed at May 26th, 1863, at about 4 o’clock in the afternoon. A group of six miners had been searching the area with little luck until the leader, Bill Fairweather, spotted an exposed area of promising bedrock. He dug up a shovel full of dirt and put it in Henry Edgar’s pan for washing. About the same time that Edgar was busy washing out the pan, Fairweather was poking around the bedrock with his pocketknife. Both spotted the color of gold at once.
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The accurate sampling of mineral deposits for testing and analysis is perhaps the most important step involved in both mineral exploration and development. It is a critical factor in initial prospecting efforts and the preliminary investigation of grassroots exploration projects, yet sampling is often performed in a haphazard and incomplete fashion during the early stages of prospecting and exploration activities.
Wayne Sutherland, a metals, gemstones and economic geology specialist with the Wyoming State Geological Survey, said the initial exploration samples were significant.
The Bawl Mill • Newmont's Gold Quarry Mine • Drywashing and Detecting for Eluvial Placer Gold Research is the Key to Success—Part II • EPA Offers Liability Protection to Spur Cleanups • Study: West Has Vast Oil Shale Reserves • The Notch Peak Intrusive • Recovering Fine Gold: Getting the Most from Your Sluice Box • 2005 California State Gold Panning Championships • Company Notes • Tales of California Gold Discoveries 2nd in a Series—The Jenny Lind Mine • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices