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Prospecting For Gold—The Osborne/Herman Hardrock Mine
August 2007 by Don Robinson
We’re always out there looking, checking, researching and trying to locate a new prospect or deposit. It’s always a question as to where to start. Some days we head down to the river to do some panning, sluicing or dredging.
Company Notes
• Newmont Mining Corp.
• Manhattan Minerals Corp.
• Phelps Dodge Corp.
• Gammon Lake Resources Inc.
• Glamis Gold Ltd.
• Quadra Mining Ltd.
• Freeport-McMoRan Copper & Gold Ltd.
Mineral Deposit Trends: Real and Imaginary
One of the most important things prospectors do is work to figure out where to go prospecting. Along with understanding the basic geology and putting yourself in a favorable area, one of the things a prospector might consider in finding a location to search is the existence of mining belts also known as mineral deposit trends.
The Miner’s Switchback
Common thought is the switchback slows the velocity of the rushing water and gold drops out from the cut bank to a fill gravel bar within or below the switchback. I am not going to disregard that model; however, I hope to improve upon it.
Metal Detecting Within the Cordillera for Gold Placers Associated With Tertiary Epithermal Ore Deposits
This is a follow-up article to “Epithermal Ore Deposits...” published in the December 2000 issue. Related tables and maps were included with the previous article. If you did not receive the December issue you can still view the previously published maps on our web site by clicking on “January 2001 Featured Article.”—Editor
Gold in Chihuahua, Mexico
Chihuahua, about the size of Oregon, is Mexico’s largest state and one of its most prosperous, with a great influx of foreign capital. The capital city, Chihuahua (pop. 2 million), is 228 miles, by divided highway, south of El Paso, Texas. Topographically, the state can be divided into several provinces, from dry sandy deserts on the north and east, to the forested Sierra Madre Occidental on the west and southwest.
Suction Gold Dredge Miners Win On Federal Preemption
Judge Ochoa went so far as to call the California permit scheme “unenforceable.”
Understanding Geologic Deposit Models
Geologists have long noted the similarities of certain types of mineral deposits all across the globe. Similar minerals, similar country rocks, and similar grades of mineralization may occur in several different parts of the world.
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The Bawl Mill
• Ask the Experts
• The Basics of Small-Scale Heap Leaching with Cyanide
• Will California Dredging Survive?
• Journeys in the Kingman Quadrangle
• From Spanish Mine to Modern-Day Exploration: The Historic Gold-Silver Camp of Palmarejo
• Spanish Police Seize Ship in Treasure Fight
• Looking Back
• Gold Mine Proposed in Jefferson County
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
