All Articles
Platinum in Laccoliths
May 2003 by Edgar B. Heylmun, PhD
Laccoliths are unusual igneous features that seem to occur in the stable interior parts of continents. They are concordant igneous intrusions that have domed the overlying rocks and are circular in plan, and less than 10 miles in diameter. This article deals with some of the laccoliths found in the scenic Colorado Plateau province of Utah, Colorado, and Arizona...Looking Back
Excerpts from California Mining Journal, our original title, published 50 years ago this month.
Treasure Hunters Challenge FBI Over Dig for Civil War Gold
The father-son duo spent years combing this bit of Pennsylvania wilderness with high-end metal detectors, drills and other tools to prospect for a fabled cache of Civil War gold.
Ask the Experts: Recommended Reading—Part I
We asked several writers and professionals to recommend their favorite books or publications that they thought would benefit prospectors and miners. Each recommendation is followed by a rating of beginner, intermediate, or advanced prospector or miner, or a rating of “general” (for all levels).
The Oretron
Most ore bodies generate a voltage, giving the prospector another valuable method of tracing and locating these hidden minerals. With the Oretron, one can sense and measure these voltages along the ground surface...
Legislative and Regulatory Update
• California dredging update
• On a related issue, SB 233
• EPA and greenhouse gases
Gold Rush in the Congo
It all started with a phone call from my friend and prospecting partner Pat Keene. He told me that he knew of an investor who was just starting out in the gold industry and was looking for a gold consultant to go to Africa to prospect and analyze a 400 sq. mile concession in the middle of the Congo rainforest. I waited for the “just kidding” line...
The Bawl Mill
• House members "earn" another raise
• Not the sharpest knife in the drawer...I mean...clerk in the store
• That's 8.49 million first-class postage stamps
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The Ball Mill
• Our Readers Say
• WMD Raffle Raises Funds for Lawsuit
• Gold in Alabama
• From the Editor
• Yukon Placer Miners Fighting Extreme Discharge Limits
• Picks & Pans: Red Beryl Mining—Beaver County, Utah
• The Investigation
• A Gold Detector Sitting in a Closet Only Finds Dust—A Potpourri of Detector Tips
• Central Coast Ranges
• Poll: Montana in Favor of Repealing Anti-Mining Initiative
• Mining Stock Quotes and Mineral & Metal Prices
• Looking Back
• Melman on Gold & Silver
Free:
Legislative and Regulatory Update
• BLM Runs Check on Assay Services
