Prospecting With The Help of Fluvial Geomorphology
March 2011 by Jim HalloranQuiz yourself about the stream in figure 5. Based on your previous knowledge of where gold is found in a stream and in this article, where do you think you will find the most gold?
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.
A few years ago I had a tremendous opportunity to visit Australia and hunt for gold there. The geology of the gold deposits there was somewhat different from what I was used to here in the US. I learned a lot about greenstone belt gold deposits while prospecting them in person, and it was an amazing trip.
…there are loads of different copper minerals, but a large number of them form first in the ground as chalcopyrite and then through the effects of weathering are changed into other minerals like malachite, cuprite and chrysocolla.
Only the famous Kennecott copper mine was able to continue operating through the Depression owing to the exceptional richness of its ore.
While both zinc and lead deposits also are enriched by the surface weathering process, in part two we will look at the enrichment process for copper and also gold deposits, and at the interpretation of leached outcrops to figure how rich the concentrated deposits below them may be.
In this case, signs of gold were found at the bottom of the alluvial and then traced in a triangle up the face of the mountain until they stopped—that is where the digging began.
On our last trip, we brought ropes and went down the first waterfall forty vertical feet, only to be confronted by a second, sixty-foot-high, overhanging waterfall that emptied into a slot canyon.
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? • Eastern Arizona: Gold and Base Metal Deposits Part II • Rediscovering Placerville, California Part II • 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