Underground Mining: Getting the Ore Out
February 2017 by Chris RalphChoosing the right method to move your ore and waste is all about making the right choices. Sometimes more than one method may be used during the life of a mine as an operation expands and grows.
I had a chance to visit the operation in person and talk with Neal. I was very impressed and I think our readers could learn a lot about building up a commercial placer operation from scratch…
Silver recovery from low-level solutions is frequently done in a cell that has a cathode with 2 to 5 or more times the surface area as the anode.
A Wilfley table works best when all of the mineral being run across it (the pulp) is about the same size. For this reason, I took a good look at each of the samples.
Most gold-bearing veins in this region are controlled by fractures associated with the Melones Fault, a late Cretaceous structure that is 108 to 127 million years old.
The biggest obstacle is that like many streams on the Kenai Peninsula, high water during the summer months from snow melt and rain can make dredging nearly impossible. The best dredging is in the colder months of the year.
The fact that mineral deposits can contribute specific types of heavy minerals is why the analysis of the heavy mineral concentrates in the streams of an area can be an important prospecting technique for finding undiscovered mineral deposits.
We descended hunched over, down a long, steep, wooden staircase to the 1,000-level.
The Bawl Mill • Legislative and Regulatory Update • Ask The Experts: Looking for help on unproven claim • Calcite and Limestone • Detecting Basics: Lose the Bad Habits Not the Gold • Feather River Gold • Detecting Alluvial Bench Deposits • From Vietnam to Wedding Bands • Trade-Ins, Swaps and Like-Kind Exchanges • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices