Weathering, Erosion and Placers
April 2017 by Chris RalphThe big interest to prospectors thinking about the effect of erosion is not what might happen long into the future, but what they might find in the rivers later this summer when the water levels go down.
• Making a noisy dredge more quiet
Normally the detector he was using would sound off with a definitive high-to-low tone when passed over a piece of gold, which distinguished the gold from the many high iron content "hot rocks," but this one was different...
They must have assumed the paystreak was spotty and had been mined out, so they never mined as close to the side of the valley as they should have.
Gold and jade are actually only minor mineral resources for the Northwestern Alaska region as a whole. Modern prospecting has focused more on base metal than precious metal resources.
A number of visiting gold miners were quite impressed with our operation and the amount of gold we had recovered in only three hours. No one usually likes digging and slugging buckets all day long, but we actually began to enjoy it after a few good...
I picked up a noticeably heavy, fist-sized chunk of what I thought was a heavy piece of iron. After wiping some of the dirt and clay off, I still didn't know what on earth this object was.
Years later I returned with a new detector with a smaller coil and detector technology more sensitive to smaller nuggets. I found my first nugget within five minutes. I had a second five minutes after that.
The Bawl Mill • Legislative and Regulatory Update • Ask The Experts: Is an XRF gun useful for prospecting and mineral identification? • Ask The Experts: Is this deposit worth working? • Ask The Experts: Can a long range locator probe detect gold in quartz? • The PIGMI—a DIY Crevice Tool • Diary of a Diamond Prospector • The Ups and Downs of Nugget Hunting • Epithermal Gold and Silver Deposits • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices