VMS Deposits in Central Arizona
October 2004 by John RothermelVolcanogenic Massive Sulfide (VMS) deposits in the Central Arizona Precambrian volcanic belt occur within a felsic package of volcanic rocks capped by an exhalite unit comprised of cherts, iron formations and siliceous members.
• Re: Jim Straight
• Re: The price of mercury
...we are witnessing the onset of a major transformation of the underlying economic/political structure, perhaps headed toward government controls beyond any previous American experience.
Robert A. Sanregret
1930 - 1999
The same questions you ask yourself about gold trapping features in the present stream can be applied to the benches above the stream. Just imagine the stream at a much earlier time, before it cut its way down to the present level…
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