The Seven Troughs Mining District
September 2016 by Chris RalphThe favorable geology of the northeastern and central parts of the Seven Troughs Range are the parts most interesting to prospectors. They are underlain by a thick sequence of Tertiary volcanic rocks, mostly rhyolites and andesites.
The problem is that extracting gold from hard rock is often a lot more difficult than processing placer gravels. Still, there is some very high-grade ore out there in many old mining areas.
The 15 rare earth elements were discovered long after the gold rush began to wane, but demand for them only took off over the past 10 years...
It is not necessary to have a PhD in geology, but you need to know the basics, so that’s what I am going to try to dig into here—the understandable basics of these gigantic gold deposits.
Working underwater certainly has its challenges, but since I wanted to learn how to blast underwater, I just needed to dive in headfirst and take charge of the operation.
I thought it might be worthwhile to take a look at the basics of this important mineral separation technique and how a miner can use it to recover the values out of an ore.
We needed something to cook on, so we brought most of our kitchen with us including our full-size oven, which was pretty funny to see in the middle of a rainforest. Food was always a concern, but fortunately for us...
I’ve been following the precious metals for decades, and I haven’t seen a move this powerful in many years.
The Bawl Mill • Our Readers Say • Ask The Experts: Is there a safe DIY alternative to cyanide or mercury for extraction? • Ask The Experts: Should I take my claim access problems to the Desert Advisory Council? • Ask The Experts: How do I identify gold in hard rock that may be mixed with other metals? • Ask The Experts • Ask The Experts • Legislative and Regulatory Update • Pickers and Nuggets • Modern-Day Claim Jumping • Oregon's Waldo and Galice Mining Districts Unite • Attention to Detail - Part II • CA Supreme Court Rules Against Rinehart - But There Is A Solution • Summertime Gold Panning • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices
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