History & Geology
Eastern Arizona: Gold and Base Metal Deposits Part II
March 2011 by W. Dan Hausel
In 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 Birimian Greenstone Belts of West Africa
The country we were to visit was Burkina Faso, a small country about the same size of my home state of Nevada with about 10 times more people. The second day I was in Africa, we went out to the goldfields for the first time.
The Verde Copper-Gold-Silver-Zinc District, Jerome, Arizona
When I was a student in the College of Mines at the University of Utah, the Verde district was used as an exploration model for “submarine volcanogenic massive sulfide deposits.” So I looked forward to visiting this district and the town of Jerome in central Arizona in the spring of 2012.
Ask The Experts
Q: Is there a correlation between fault zones and mineralization of economic metals?
Picks & Pans: Gold Recovery in Placer Mining Operations
Two of the major factors affecting the profitability of a placer mining enterprise are the relative efficiency of the mining equipment, and the rate and percentage of recovery obtained while conducting mining operations.
Benches and Fossil Placers
Unfortunately for us mortal humans, we have a poor perspective on geologic time. When we look at a landscape such as a stream valley, we see it only in two, or at the most, three dimensions. We have poor comprehension of the valley’s fourth and most important dimension—time.
Conrey Dredge No. 4
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.
Gold and Rare Earth Elements in New Mexico
We import nearly all of our REEs from China, so it’s critical that we find and continue to develop domestic resources of these elements.
Subscription Required:
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
Free:
2011 Gold Prospecting & Mining Summit April 23-25 in Placerville
• Legislative and Regulatory Update
• Cue Resources Seeks Uranium in Paraguay
