Prospecting & Detecting
Proper Placer Sample Processing
November 2013 by Jim Halloran
...your sampling procedures should not be designed to catch gold your mining technique will never recover.Using Google Earth and Other Maps
Last month, one of our readers requested an article regarding the possible use of Google Earth for prospecting research. It was a good idea, so here it is.
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.
Following the Clues
It took me awhile before I finally got a nice mellow signal. My nugget turned out to weigh in about two dwt (pennyweight). Over the next few hours, we all picked up a few more nuggets apiece.
Ask the Experts
Setting up a gravity dredge
Chasing Float Gold—The Starry Night Wash
The sun was beginning to set, which put the light at just the right angle against the hillsides to where I believed that I spotted a very small dig and tailings pile up the hill near the top of the second wash.
Mother Lode Leaf Gold
After removing about six inches of dirt and cobbles, the sound was a bit more recognizable. I was now confident that there was a definite target and not just a ground noise.
Dredging Therapy
The big moment finally arrived. With Norm suited up, I pulled the motor to life and felt instantly better. There’s really something relaxing about the sound of a dredge running—they don’t sound like anything else.
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The Bawl Mill
• Ask the Experts
• One Potato, Two Potato...
• 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
• The Subsurface Suction Dredge
• A Few Thoughts About Successful Nugget Hunting
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
