Prospecting & Detecting
What Have You Got to Lose?
November 2016 by Chris Ralph
It’s accepted knowledge that wet methods will recover more fine gold than dry methods and processing the gravel as a whole will get more gold than only using a metal detector. The question is how much more?
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Buyer Beware! Counterfeit Metal Detectors
August 2013
When I was recently in West Africa, I got to see and play with my first, phony, Chinese knock-off metal detector.
When I was recently in West Africa, I got to see and play with my first, phony, Chinese knock-off metal detector.
Mud Men: Pocket Miners of Southwest Oregon—Part I
February 2011
Rocks and minerals associated with clay seam gold deposits in southern Oregon are often in sedimentary rock units at least partially metamorphosed into argillite. They are also associated with mafic volcanic rocks, basalts and gabbro that...
Rocks and minerals associated with clay seam gold deposits in southern Oregon are often in sedimentary rock units at least partially metamorphosed into argillite. They are also associated with mafic volcanic rocks, basalts and gabbro that...
Recovering Fine Gold with Oleophilic Adhesion
April 2014
Oleophilic means "affinity to or attracted to oils," and this includes gold an diamonds.
Oleophilic means "affinity to or attracted to oils," and this includes gold an diamonds.
Gold in the Slate Creek Basin
September 2011
In some areas these channels were thousands of feet wide, and just figuring out where you are in some of these diggings is a challenge.
In some areas these channels were thousands of feet wide, and just figuring out where you are in some of these diggings is a challenge.
Bedrock
March 2014
I am going to break bedrock down a bit and explain my view of the varying scenarios I come across in the field.
I am going to break bedrock down a bit and explain my view of the varying scenarios I come across in the field.
Locating Intrusions in Host
August 2023Prospecting and Mining Old Mine Sites
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In some places valuable ores can be found within the waste material of mine dumps, sorted ore piles, and detrital vein matter at the surface. Though many of these old mine sites can be an excellent source of gold, not all are created equal.
In some places valuable ores can be found within the waste material of mine dumps, sorted ore piles, and detrital vein matter at the surface. Though many of these old mine sites can be an excellent source of gold, not all are created equal.
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