Prospecting & Detecting
Good Assays and Bad
January 2012 by Chris Ralph
The high prices for gold and silver are exciting and certainly have revolutionized the prospecting and mining scene. New interest in gold and silver mining is springing up from every corner, from individual prospectors armed with gold pans to exploration and mining companies working to set up multimillion dollar commercial operations producing hundreds of thousands of ounces per year. The idea of getting riches from rocks is one that motivates a lot of folks all over the globe. It’s an exciting time, but this excitement brings out another side...Exploring Snakehead
On our fourth trip, we finally reached the top edge of the old hydraulic pit, and it was monstrous.
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.
Mud Men: Pocket Miners of Southwest Oregon Part III
The amount of gold in the traces from the low-grade scattered veinlets may be much more than the traces from the small but rich pocket, at least until the pocket hunter closes in on the rich pocket. Further confusion arises if the prospector stumbles across a placer deposit on one of the higher peaks.
Understanding Skim Bar Placers
Perhaps the most notable thing about skim placers is that they form on the top surface of gravel bars, as opposed to coarser gold placers where the weight of the gold particles allows the gold to settle down on or near bedrock.
The Mole
My wife Dorothy has always enjoyed tent camping. She thought she was really roughing it at established campgrounds until I convinced her to take a trip with me to drywash for gold in a remote corner of an arid desert wilderness...
Selenium, Mercury and Suction Dredging—Studies Contradict CA State Water Resources Board
Federal and state regulatory agencies often cite mercury and methyl mercury in our waterways as a major factor for further restrictions on placer mining, and on suction gold dredge mining, in particular. However, these regulatory agencies are minimizing selenium and its neutralizing effects.
It Pays to Know Your Bedrock
On our last trip, we brought ropes and went down the first waterfall forty vertical feet, only to be confronted by a second, sixty-foot-high, overhanging waterfall that emptied into a slot canyon.
Subscription Required:
The Bawl Mill
• Southwest Alaska Gold Project Progresses
• Where to Find Gold in Indiana—Part II
• Who is a Qualified Person?
• Time Well Spent
• Reality of the Klondike
• NWMA Show
• River Dredging vs. Creek Dredging—Part II
• Pot Hole Gold
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
