History & Geology
The Ups and Downs of Geologic Faults
May 2011 by Chris Ralph
Faults are fractures, breaks and broken zones in the Earth’s crust where one side of the break has moved relative to the other, and they come in many different varieties.
Prospecting With The Help of Fluvial Geomorphology
Quiz yourself about the stream in figure 5. Based on your previous knowledge of where gold is found in a stream and in this article, where do you think you will find the most gold?
Nevada's Lithium Boom
When prospecting for lithium, after confirming for macro attributes through research and field work, including examination of surface geology, the main tool is an accurate lithium assay.
Exploring A Historic Lode Mine
Climbing up the debris, I pointed my flashlight up a shaft ascending straight up as far as my light would shine. It was the stope of the pay shoot leading to the old tunnel above!
The Wild Rush to Find More Cobalt—Part I
While some future cobalt will come from recycling lithium batteries and other products, the coming huge need for cobalt is virtually a perfect storm of heavy demand and insufficient supply.
Conrey Dredge No. 4
The large buckets were favorable for the type of ground worked. The gravel was tenacious and compact, due to the existence of irregular pockets of clay.
The Significance of Nuggets in Placers
Chances are better that both types of gold did not come from the same source. Let's look at the probable conditions to cause two types of gold in a placer.
Researching Mineralized Areas
There are a load of ways to do research, and I’m going to talk about how I do it—maybe you’ll get some ideas that will work for you, too.
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The Bawl Mill
• Why Haven't They Mined This Claim?
• Ask The Experts—Where can I find information on the Abby mine?
• Ask The Experts—Is it possible for a mountain range to have good lode gold deposits and yet the area streams not carrying like deposits of gold?
• Ask The Experts—How do you amend a placer claim?
• Ask The Experts—What happened to the BLM web site geocommunicator.gov?
• Fountain of Youth Gold
• Legislative and Regulatory Update
• Suction Dredging Update for California & Idaho
• The Disappearance of State Mining Departments
• The Golden Streams of Butte County, California
• Melman on Gold & Silver
• Mining Stock Quotes & Mineral and Metal Prices
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One Question, Forever Unanswered—Did He Really Find the Gold?
