Prospecting & Detecting
Beach Mining for Placer Gold
June 2019 by Rob Roy
What I saw was a beach area that was just completely covered in black sand. Rubbing my hands close together like a kid in a candy store, I could not wait to get set up.
The World of the Simple Gold Pan
There are so many, many different types of gold pans on the market that I thought it would be worthwhile to take a look at the world of the simple gold pan.
Proper Spacing of Placer Sample Sites
The zone of influence of each sample must be carefully considered when deciding how far sample sites should be spaced from each other.
Searchers' Dreams
The story began in a southern Arizona mountain range...
Following Clues to an Old Mill and Vein Strike
My last update on this adventure was in the April 2012 issue and involved our search for the northern extension of the Cedarberg Mine. At that time we had found it and we were in the process of returning for some detecting when Mother Nature struck with a late rain and snow storm.
The Heavy Minerals in Your Concentrates
The fact that mineral deposits can contribute specific types of heavy minerals is why the analysis of the heavy mineral concentrates in the streams of an area can be an important prospecting technique for finding undiscovered mineral deposits.
The Subsurface Suction Dredge
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...
An Interview with Minelab Engineer Mark Lawrie
The design of metal detectors well-suited for prospecting is an interesting process and not necessarily an easy one to achieve. It is a combination that blends the desires of what prospectors would like, the requirements of sales people and dealers, with the science and physics of what the electronics can achieve.
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June 2019 (Vol. 88, No. 10)
• The Bawl Mill
• Legislative and Regulatory Update
• Ask The Experts - Can you provide information on gold in Ghana?
• Ask The Experts - Geophysics and gold deposits
• Ask The Experts - Do these items qualify as mechanized equipment?
• Ask The Experts - EPA Method 6020 testing
• Ask The Experts - New detector or stick with the old?
• The Value of Old Patches
• A 'Rare' Opportunity for America
• Tips for Cleaning Gold Nuggets
• How Long Does It Take to Find and Recover An Ounce of Gold?
• Gold Prospecting for Better or Worse: In A Tight Spot
• Detecting Wet Ground Yields More Fun Than Gold
• Over The Divide: Jim Straight, 1930-2019
• Reno's 1872 Time Capsule Includes Gold Rush Lore
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
Free:
PLP Update
• Comments Needed On Pebble Project Draft EIS
