Detecting for Gold in Australia—The Kimberley Trip
December 2010 by Jonathan PorterThe hair stood up on the back of my neck when I saw this, especially the nice patches of wash in the bottoms of the gullies, a sure sign of an auriferous source being nearby.
In 1877, a prospector named Ed Schieffelin discovered silver in “the middle of nowhere” and staked two claims: “Tumbstone” and “Graveyard.” Soon a town and mining district were organized and acquired the name “Tombstone” after making a spelling correction.
The process of recognizing ores all starts with being able to recognize some basic minerals and knowing what hard rock ore looks like in the districts where you prospect.
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.
Arizona is well-known for its copper-gold porphyries and massive base metal-gold sulfide deposits such that primary gold deposits in the state are often overshadowed.
Quiz yourself about the stream in figure 5. Based on your previous knowledge of where gold is found in a stream and in this article, where do you think you will find the most gold?
The Wyoming State Geological Survey announced ten new geologic maps have been completed and are now available.
...if you are out prospecting and find something that looks very much like a nugget but has an odd greenish-gray cast to it, don’t be too quick to simply toss it aside as junk.
The Bawl Mill • Ask The Experts—Iridium • Ask The Experts—Highbanker legal in CA?; Best place to sell raw gold? • Ask The Experts—Using classifiers • So, Where's The Gold?—Finding Gold Detectors Miss • The Oregon Claim • Forest Service v. Michael & Linda Backlund • Highbanking on the Feather River • CFTC Finds Evidence of Silver Market Manipulation • Gold in Arizona • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices