Massive Sulfide Deposits in Oregon
October 2000 by Edgar B. Heylmun, PhDThis article deals with massive sulfide deposits in the Klamath Mountains of southwestern Oregon, but it applies to massive sulfides found in California as well.
What many people don’t realize is that the Comstock Lode produced over 8,000,000 ounces of gold…
Selected excerpt from USDA Forest Service Technical Report:
Anatomy of a Mine from Prospect to Production
The solution focused on the relative difference in malleability between gold and waste, rather than the difference in density exploited by gravity circuits.
• California dredging update
• On a related issue, SB 233
• EPA and greenhouse gases
...we cannot help but wonder exactly how nation after nation, already massively in debt and presently burdened with monumental operating deficits, is going to come up with such largesse. We also wonder exactly how going ever-more deeply into debt is going to resolve a debt crisis.
Clarence King was born in Rhode Island in 1842, the son of a businessman. His father died when he was 6, so he was raised by his mother. She wanted to have Clarence attend the very best schools, and even moved in order to have him in the best district. She gave him a magnifying glass on his 7th birthday, and this led to his discovery of fossil ferns in neighborhood rocks.
The Bawl Mill • A Word from the Editor • Under the Guise of Environmental Protection—EPA Revealed • The Centennial Lode and the Centennial Ridge District, Wyoming • Company Notes • Picks & Pans—In Search of Nome Creek Gold • Recreational Dredging on the South Yuba River • The Trapiches of Chile • Tales of Liberty Gold • Drywashing Alluvial Placers • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices