Understanding Geologic Deposit Models
May 2008 by Chris RalphGeologists have long noted the similarities of certain types of mineral deposits all across the globe. Similar minerals, similar country rocks, and similar grades of mineralization may occur in several different parts of the world.
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While there is no metal detector that will see only gold, there is a device that can reliably distinguish gold from lead, copper, iron or other metals. It is an X-Ray fluorescence tester, sometimes called an XRF gun.
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Imagine you have located a source of virgin placer ore containing immense gold value. Now imagine that there is a 10-ton monolith of extremely hard gneiss in between you and payday.
In southwestern Canada a couple of summers ago, the weather was extremely dry. So dry in fact, that some of the streams were at lows not seen in many decades. The wonderful advantage for sniping in the following fall was that...
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As we walked back we were just reaching the point of where the faulting should be and there, covered with deep grass, was very faint evidence of an old road going up the mountainside! What was that old road doing there?
The Bawl Mill • Ask the Experts—Why doesn't the 1872 Mining Law apply to all 50 states? • Ask The Experts—Where do I find information about getting paid for raw gold? • The Lost Silver Triangle of the Sierra Madre—Part II • Prospecting for Diamonds • Avino’s Durango Project • Success With A Detector • Horsetail Gold • The Makorakoza of Zimbabwe—Centuries of Prospecting in Gold-Hosting Dolerites • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices