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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.Company Notes
• Sterling Mining Company
• Pan American Silver Corp.
• Vista Gold Corp.
• Fronteer Development Group
• US Gold Corp.
• NovaGold Resources
Australia Produces World's Largest Gold Coin
Australia’s Perth Mint currently holds the record for the world’s largest gold coin.
Legislative and Regulatory Update
• Idaho miners will challenge new EPA permit at rally
• California proposes to amend definition of a suction dredge
• Proposed rule redefines "navigable waters"
Mining Stock Quotes and Mineral & Metal Prices
How To File A Mining Claim
Filing claims is actually quite easy, though there are a number of pitfalls that you should watch out for. Over the years, I have made just about every mistake you can with a mining claim, and have learned a few things to watch out for along the way.
Gold Rush in the Congo—Part II
We needed something to cook on, so we brought most of our kitchen with us including our full-size oven, which was pretty funny to see in the middle of a rainforest. Food was always a concern, but fortunately for us...
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