All Articles
Using Mineral Deposit Models
June 2003 by Lawrence Dee
Mineral deposit models have been used in mineral exploration for thousands of years. They were obviously not called models as we use the term today, but the idea of accumulating data to predict mineral deposits is the same. Models can be valuable tools in mineral exploration and assessment and are routinely used by major mining companies in locating and evaluating mineral deposits.Legislative and Regulatory Update
• Forest Service Roadless Initiave comment period is about to close
• Endangered Species Decision Delayed
• 43 CFR Part 3800—Mining Claims Under the General Mining Laws
PLP and MMAC Update
We have an opportunity to make significant and substantial changes to provide relief for small miners with the Trump Administration and the current makeup of Congress. We realize the time to act is now, but we need your help.
Legislative and Regulatory Update
• Utah, fed up with federal and environmental policies, takes action
• Administration proposes ending fish protections to settle suit
• Court finds fault with Forest Service spotted owl study
Sierra County Gold—Part II
...we will continue our examination of the rich streams and mining districts, and then take a look at some of the big nuggets that have been found here.
Wall-Rock Alteration
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.
Legislative and Regulatory Update
• Interior considers huge withdrawal in Arizona
• Travel Management Plans
• Roadless Rule has nine lives
Appeals Court OKs Permits for Upper Peninsula Mine
The $800 million project will provide 300 jobs during production. It will be the only US mine where nickel is the primary targeted mineral, with about 360 million pounds to be extracted.
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The Bawl Mill
• City Gives Blessing to Pogo Mine
• Underground at Yankee Jim's
• Dry Placers in Southern Baja
• A Gold Detector Sitting in a Closet Only Finds Dust—More Detector Tips
• Gold in Tennessee
• Old Stock Certificates—Treasures or Trash?
• Payette Forest Sides With Mining Company
• Miners Still Waiting for Bonding Recommendations from DOI
• The Old Mine Dump
• A Practical Approach to Dowsing
• Feds Release Opinion on Planned Mine Under Montana Wilderness
• The Lengendary Lost Gold of the Headless Valley
• Looking Back
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
