Gold Depositiion and Gradients of Placer Streams—Part II
July 2012 by Jim HalloranThe steeper the gradient is, the more potential erosive power to move gold and other bedload sediments, and the more power to remove obstacles to flow.
Apart from the hard rock mines, there are abundant gold-bearing placers, especially in the areas in and around Oriental Wash.
In 1877, a prospector named Ed Schieffelin discovered silver in “the middle of nowhere” and staked two claims: “Tumbstone” and “Graveyard.” Soon a town and mining district were organized and acquired the name “Tombstone” after making a spelling correction.
Potholes in bedrock can trap placer minerals and even be glory holes. They are, at least, interesting geologic phenomena, and at best, a treasure trove of gold nuggets.
There are a number of Tertiary river channels in the area, most of which trend south-southwest. They tend to be steep, narrow, and rich with coarse gold.
Quiz 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?
...the area around Eureka, Nevada is well mineralized and seems to have a bright potential for future production of all sorts of metals.
The Bawl Mill • The Life of an Independent Prospector • Gold in Guyana—Part I: Porknocking on the Puruni River Road • That Something Extra • Prospecting for Copper Ores—Part II • Metallic Trash—Scourge of the Prospector • Gold Mining Boom in the Carolinas • California Suction Dredging Update • Mine, Baby, Mine! • Hecla to Reopen Lucky Friday Mine • Nova Scotia Shows It's Serious About Jobs & Mining • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices