Prospecting & Detecting
Weathering, Erosion and Placers
April 2017 by Chris Ralph
The big interest to prospectors thinking about the effect of erosion is not what might happen long into the future, but what they might find in the rivers later this summer when the water levels go down.
Ancient River Channels of Trinity County
Trinity County is located in the far northwest corner of California and stirs up many different memories for those who have been there.
How Should I Work This Prospect?
How big is the deposit? Are there boulders you will need to move? Do you just want to recover the nuggets or do you think there is good fine gold that you will also want to capture?
Nevada's Lithium Boom
When prospecting for lithium, after confirming for macro attributes through research and field work, including examination of surface geology, the main tool is an accurate lithium assay.
The Hunt for Remote Canyon Gold
A large, 8-pennyweight piece popped out of a very small crevice where the water had been extremely swift in the winter, leaving no visible gravel.
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.
Gold Hunting on Libby Creek
The biggest nugget I have found detecting here was three grams and the following weekend someone found a 9-gram nugget while detecting. Some have even found quarter-ounce nuggets, with one being a chevron nugget.
Huge California Nugget A Hoax
Sanders claimed he used ground-penetrating radar to survey his private property in Nevada County, California, and uncovered the chunk of gold with a backhoe when he was following up on one of the anomalies found by the radar.
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• Ask The Experts: Can a long range locator probe detect gold in quartz?
• The PIGMI—a DIY Crevice Tool
• Diary of a Diamond Prospector
• The Ups and Downs of Nugget Hunting
• Epithermal Gold and Silver Deposits
• Melman on Gold & Silver
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