History & Geology
The Goldfield Mining District -- Then and Now
March 2017 by W. Dan Hausel
In 1983, some of the ore yielded more than 2,500 ounces of gold within 30 feet of the surface. The shoot pinched to a narrow vein.
Gold Placers of Southern California
I grew up in Southern California, and found my first nugget there, so I know my way around. Because there is good gold there, I thought it might be helpful to take a look at the many placer gold opportunities found in the southern part of the state.
Northwestern Alaska Mineral Resources
Gold and jade are actually only minor mineral resources for the Northwestern Alaska region as a whole. Modern prospecting has focused more on base metal than precious metal resources.
Prospecting for Diamonds in Kimberlite
Kimberlite is very difficult for geologists to find, let alone prospectors and rock hounds. This is because kimberlite is rarely exposed on the surface and few people know how to identify the rock.
Critical Metals: Antimony
I’ve been taking a look at the mining and uses of a number of critical metals in series of articles, and it’s time to take a look at antimony.
The Birimian Greenstone Belts of West Africa
The country we were to visit was Burkina Faso, a small country about the same size of my home state of Nevada with about 10 times more people. The second day I was in Africa, we went out to the goldfields for the first time.
Enrichment of Mineral Deposits by Weathering—Part II
While both zinc and lead deposits also are enriched by the surface weathering process, in part two we will look at the enrichment process for copper and also gold deposits, and at the interpretation of leached outcrops to figure how rich the concentrated deposits below them may be.
Subscription Required:
The Bawl Mill
• Ask The Experts: Can you review the differences in dry washers?
• Ask The Experts: Will this detector work for me?
• Ask The Experts: Nickel assays
• Ask The Experts: Potential for developing magnesite deposit
• Our Readers Say
• Selectable Frequency vs Multi Frequency Detectors
• All About Chalcopyrite
• Detecting Alluvial Bench Deposits -- Pt II
• Nevada's Lithium Boom
• Old Patch, New Detector
• Over The Divide: James H Harrand & Daniel Yesberger
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
