Critical Metals: Copper
May 2012 by Chris RalphFrom time to time I’ve been doing a series on critical metals and how important they are to our complex and technological society. This month we are going to take a look at copper, and how important that metal is to our modern lives.
Apart from the hard rock mines, there are abundant gold-bearing placers, especially in the areas in and around Oriental Wash.
Most gold-bearing veins in this region are controlled by fractures associated with the Melones Fault, a late Cretaceous structure that is 108 to 127 million years old.
I suspect detailed geological mapping and prospecting would lead to discovery of one or more overlooked gold deposits in the district even though it has been heavily prospected in the past.
…some miners are doing exceptionally well… with a few obtaining amounts estimated in the millions of dollars.
For a time uranium was more popular with prospectors than gold, but this is no longer true, and it has been decades since it was common to see individuals armed with Geiger counters out in the field.
Has your experience ever led you to wonder why some gold is deposited on bedrock and in crevices, while other gold is not? We’re going take a deeper look at this and see what we can figure it out.
Sulfides and oxides—what's the difference between the two?
The Bawl Mill • Ask the Experts: gold per ton; improving assay method • Bering Sea Gold—Part II • Tucson Show Marketing • Ganes Creek Hits 10 Years—Part I • Fabulous Florence—The Golden Town of Idaho • Arizona's Vulture Gold Mine and Lost Dutchman • Replacing Your 12-Volt Pump • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices