Eastern Arizona: Gold and Base Metal Deposits Part II
March 2011 by W. Dan HauselIn this review of precious and base metal deposits in Arizona, it is apparent that several significant mines and mineral deposits occur in eastern Arizona, and there is considerable potential for new discoveries.
The Reno Masonic Lodge was built along the railroad tracks back when Ulysses S. Grant was president and shortly after the Comstock Lode of gold and silver was struck in Virginia City.
The favorable geology of the northeastern and central parts of the Seven Troughs Range are the parts most interesting to prospectors. They are underlain by a thick sequence of Tertiary volcanic rocks, mostly rhyolites and andesites.
Let’s take a look at diamonds and diamond mining and see how they form, how they are used beyond just jewelry, and what leads geologists to find diamond deposits.
The placer deposits of Utah occur in two distinct types of environments. These are 1) placers found adjacent to, and derived from, gold, silver and base-metal deposits; and 2) placers found in major rivers and derived from unknown, distant sources.
The large buckets were favorable for the type of ground worked. The gravel was tenacious and compact, due to the existence of irregular pockets of clay.
For more than 40 years, iron ore prices have been decided by private negotiations conducted between the largest of the iron miners and the largest steel producers. These two sides dominate both the spot and contract iron ore markets.
Because quartz and gold may be deposited together across a considerable range of temperatures, not all quartz veins are the same, and there are several different types of gold-quartz deposits.
The Bawl Mill • So You Want To Be A Full-Time Prospector? • Ask The Experts—Do I still have rights to this mining claim? • Ask The Experts—What is a "closed" claim? • Rediscovering Placerville, California Part II • Prospecting With The Help of Fluvial Geomorphology • Oregon Anti-Dredging Bill • Mud Men: Pocket Miners of Southwest Oregon Part II • The Gold of Plumas de Oro • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices