Indicator Minerals for Gold & Silver
April 2011 by Chris RalphIn this article, we’re going to take a look at the minerals that contain gold and silver, and how you as a prospector can identify them in the field.
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.
In 1983, some of the ore yielded more than 2,500 ounces of gold within 30 feet of the surface. The shoot pinched to a narrow vein.
Trinity County is located in the far northwest corner of California and stirs up many different memories for those who have been there.
Epithermal deposits form in the ground at shallow depths. They are popular with prospectors because can yield very rich deposits and they are widespread in the Western US.
The periodic exploration efforts for nickel during periods of high prices have been sporadic and incomplete. There is a role for the prospector and geologist in searching laterites potentially rich in nickel and mafic igneous bodies that may be rich in nickel.
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?
Polymetallic skarn deposits are an interesting class of deposits that can contain a number of different types of metals.
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