The Ups and Downs of Geologic Faults
May 2011 by Chris RalphFaults are fractures, breaks and broken zones in the Earth’s crust where one side of the break has moved relative to the other, and they come in many different varieties.
Doug told me that there had been a 100-year flood that took place in October of 2013 and it washed out part of the mile-long landing strip. It also washed a large, wide gully down below and above the camp.
…if you are game for digging in and learning more about the intricate details of how gold deposits form, then let’s jump right in.
Until just recently, platinum-group metals (PGMs), especially palladium, had been holding their own on the market. But, Russia has now resumed shipments and it has brought prices down.
The main ore deposits of the Ely district are associated with an east-west belt of altered and mineralized rocks measuring about one mile wide that extends 8 miles westward from Ely.
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.
Confluences of placer streams are well known as concentration sites for heavy minerals. The basic reason is that...
The Bawl Mill • Why Haven't They Mined This Claim? • Ask The Experts—Where can I find information on the Abby mine? • Ask The Experts—Is it possible for a mountain range to have good lode gold deposits and yet the area streams not carrying like deposits of gold? • Ask The Experts—How do you amend a placer claim? • Ask The Experts—What happened to the BLM web site geocommunicator.gov? • Fountain of Youth Gold • Legislative and Regulatory Update • Suction Dredging Update for California & Idaho • The Disappearance of State Mining Departments • The Golden Streams of Butte County, California • Melman on Gold & Silver • Mining Stock Quotes & Mineral and Metal Prices