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Wall-Rock Alteration
April 2004 by Edgar B. Heylmun, PhD
Wall-rock (country rock) alteration is found in all hard-rock mining districts and has been caused by hydrothermal solutions in the past history of the region. The zones of alteration have a bearing on where one might drill for ore bodies. The weekend prospector does not have the tools nor knowledge to block out ore deposits, but he can narrow down his search dramatically by understanding the zones of wall-rock alteration that he sees.Melman on Gold & Silver
By the time you receive this issue of ICMJ, the November election will be only a few weeks away, and the campaign is finally heating up. Quite surprisingly, Vice President Gore has taken the lead in recent polls from the early front-runner, George "Dubya" Bush.
Legislative and Regulatory Update
• California suction gold dredging
• Water rights
• Wilderness
• Climate change
• Two Bush rules left intact
Melman on Gold & Silver
I believe gold and silver prices, to at least some extent, negatively mirror the society's confidence in the ability of government to continue providing economic and social services.
Dredging Tips and Tricks: T-80 Air Compressor Maintenance
The next morning, I retrieved the compressor and again attacked the sticky head bolt. As if by magic (and some applied physics) the head bolt sighed and finally broke loose.
Melman on Gold & Silver
There is one last indicator that I believe may be the most important of all. That is the “Index of Leading Economic Indicators” (LEI), which is a compendium of those economic indicators that point toward future growth, and LEI has just reached historic highs, far exceeding previous peaks in 1999 and 2006.
Gold in Texas
There are numerous legends involving “lost” Spanish mines and treasures in central Texas, some of which have actually been found. The most famous mine, which remains lost, is the San Saba.
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• Picks & Pans: Family's Identity Forged Working Nevada's Gold
• Researching Suitable Areas to Detect for Free-Milling Gold
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• The Golden Highway—Amador County
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• Flexible Circuits Possible From Gold Wire
• Looking Back
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
