Prospecting & Detecting
The Subsurface Suction Dredge
November 2013 by Steve Herschbach
The problems of the submersible dredge tube are addressed by the subsurface dredge, where the enclosed sluice recovery tube is suspended from a flotation assembly...
Following Man-Made Ditches to Recover More Gold
Because of multiple take-out points along a ditch line, the ditches themselves become a wealth of knowledge to us present-day miners.
Going Over Old Ground With Newer Technology
When we got set up and I started to swing the coil over a small mound, I got a good signal, faint but repeatable.
Revisiting Old Haunts
I had some success following this premise this summer, finding a few nuggets in places I think I overlooked in the past.
Our Readers Say
- Conversion charts and tables
- Solutions to anti-mining efforts
Divide and Conquer—Detecting Old Placer Grounds with Friends
He no sooner had turned around and started moving when I hollered again that I had another nice one.
VLF Detector Operating Modes
It is important to note that discrimination is a type of electronic filtering. The signal is analyzed, and depending on the discrimination setting, identified as either a target to be dug or a target to be ignored.
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.
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The Bawl Mill
• Ask the Experts
• One Potato, Two Potato...
• Proper Placer Sample Processing
• Strategic Metals—Part I
• Dry Washing to Capture Fine Gold
• Are There Any Good Prospects Left?
• Ophir—Possibly the Best Kept Secret in Alaska!
• Southern Oregon's Illinois River—A Lesson in Sharing
• Using Sucker Guns to Find Gold
• Making Adjustments to Catch Fine Gold
• A Few Thoughts About Successful Nugget Hunting
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
