High Sulfidation Epithermal Deposits
November 2019 by Chris Ralph
They tend to be big, coming in large to extremely large sizes. They can also be amazingly rich and produce huge amounts of very high-grade ore.
If Epd is larger, then the compressor will be spinning faster than the manufacturer’s maximum specified RPM and might destroy itself. If this happens, then the compressor again might not produce enough air to support a diver. Neither is a desired outcome.
All 28 groups listed agree that Section 402 of the Clean Water Act does not apply and no dredge miner should be asking a state or federal agency for such a permit.
In last month’s issue we covered the initial discovery of gold, the subsequent gold rush that occurred around Nome, some of the geology of the area and past production. We’ll conclude the article in this issue with a further examination of the geology and deposit types, discuss the resources...
I pulled out the nuggets I had worked on previously and looked at the size of the wire basket that the items to be cleaned are placed into. It looks much like a miniature french fry deep fryer.
Another little gem of equipment he built was a nifty sample splitter. In order to get accurate assays, you need to have really good, representative samples for the assayer to process.
George was considering filling his dredge floats with closed-cell foam, ensuring that there would be no area available within each float for flooding.
This year was a test. We had never done anything like this before, yet we grossed $30,000 in the short time we had to mine.
The Bawl Mill • Ask The Experts - Seeking advice on setting up an operation and the agreement with the landowner • Montana Gold and Sapphires Revisited • A Third Generation Small-Scale Hardrock Revival • Gold Prospecting for Better or Worse: Respect the Angle of Repose • The Summer of ‘81 • The “Chuck It Out” Nugget • Gold and Silver Deposits of Bodie, California • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices