All Articles
Epithermal Ore Deposits Associated With Tertiary Volcanism—And the Feasibility of Metal Detecting for Them
December 2000 by Jim Straight
Epithermal ore deposits are common in regions of late volcanic activity, especially areas associated with Miocene and later Pliocene extrusive volcanics that have not been deeply eroded since the ore was deposited. Many are simple fissure veins, but stock-works and ore-pipes are also common.
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This is a story of a bit of our earth, carved by lines of longitude and latitude. There is a deep mystery in this land. The naked mountains speak of long ages of thrusting and rifting—of uplift and erosion. These riddles in the rock defy explanation.
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Here’s what actually happened, described in the case file documents: Based on a precious metal assay certificate signed by a registered southwest assayer, the sellers, in consideration of the payment of over $53 million, transfer over 185,000 troy ounces stored in a warehouse to a company based in Norway. This document was signed and notarized in a southwest town, and was publicly distributed in 2001. Guess what?! The warehouse floor concrete may have a higher gold assay than the concentrates sitting above it valued at fifty-three million.
Here’s what actually happened, described in the case file documents: Based on a precious metal assay certificate signed by a registered southwest assayer, the sellers, in consideration of the payment of over $53 million, transfer over 185,000 troy ounces stored in a warehouse to a company based in Norway. This document was signed and notarized in a southwest town, and was publicly distributed in 2001. Guess what?! The warehouse floor concrete may have a higher gold assay than the concentrates sitting above it valued at fifty-three million.
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The first location we worked was a small, dry ravine cutting through many mineralized zones in an area where some hard rock mining had taken place in the past.
The first location we worked was a small, dry ravine cutting through many mineralized zones in an area where some hard rock mining had taken place in the past.
The Bawl Mill
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• Inspectors inspect inspector general?
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Elaine Schrader
1935 - 2003
Elaine Schrader
1935 - 2003
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The Bawl Mill
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• World Gold Council Launches $3 Million Ad Campaign
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• History of Mining—Bradshaw Mountains, AZ—Part II
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• Melman on Gold & Silver
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