Understanding and Prospecting Benches
September 2011 by Jim HalloranThe most obvious benches are usually near the valley floor, but they can be thousands of feet above the valley floor. Since benches were made by streams, they can contain placer deposits.
Most prospectors learn early that pyrite is fool's gold...but the truth is it can be an excellent indicator mineral for gold and in many cases does contain small amounts of gold.
It is a gemstone, and yet it is also closely associated with many types of metal ores. It's valuable itself but often points toward other valuable minerals—that is certainly something prospectors want to know more about!
Until just recently, platinum-group metals (PGMs), especially palladium, had been holding their own on the market. But, Russia has now resumed shipments and it has brought prices down.
The Gold Rush in California called hundreds of thousands of souls to leave their homes to journey to the the far reaches of the West. At first the rich goldfields of the Sierra Nevada beckoned to these adventurous pioneers.
…to see the huge differences between the gold production amounts of the Western States, let’s look at the gold production—both hard rock and placer—of these 13 states up to the present.
The excitement over IOCG deposits began with the discovery of a monster deposit at Olympic Dam in Australia in 1976. The discovery was accidental as the operator was searching for strata-bound copper deposits.
Gold in clastic black shale
The Bawl Mill • Our Readers Say • Ask The Experts - Could I stake out a 20-acre claim with a waterway running through it just as I would a lode claim? • Ask The Experts - Do I have any grandfathered rights that post FLPMA claim holders do not have? • Q&A With Detector Designer Dave Johnson • Legislative and Regulatory Update • Dredging Tips From The Golden Rogue • Gold in the Slate Creek Basin • Deductions: Get 'Em While You Can • Endurance Is Golden • Melman on Gold & Silver • Mining Stock Quotes & Mineral and Metal Prices • The Preacher of Sheeps**t Flats