Exploring Placers with Auger Drills
June 2014 by Jim HalloranAugers can be used effectively for placer exploration with certain limitations.
Augers can be used effectively for placer exploration with certain limitations.
With successively lower temperatures as the water mixture cools, new sets of minerals are formed and many of those stable at a higher degree of heat became subject to alteration as the temperature progressively moved lower.
It’s not easy to figure out what is best without testing, and so a certain level of confusion has developed about how small the ore ought to be crushed.
I had never run an impact mill before, but anything involving rocks, water and a big electric motor sounded great.
Setting up a gravity dredge
For this article, I am focusing on industrial production plants that can handle 10 cubic yards per hour or more and would be fed by a loader or other heavy equipment...
Improvements in mining equipment and techniques, along with a higher gold price, make many mining properties profitable today that may not have been in the past.
The Bawl Mill • Ask the Experts • Ask the Experts • Ask the Experts • Ask the Experts • Ask the Experts • Ask the Experts • Finding Gold with a VLF Detector—Part III • Silver and Base Metal Deposits of the Pioche District • California Dredgers: A Step Closer to Getting Back in the Water • Arizona's Youngest...and Oldest Prospector • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices • Correction • Crushing Quartz in Calaveras County: A Placer Miner Learns New Tricks