History & Geology
ICMJ Visits Virginia City, Nevada
September 2023
Gold Deposition and Gradients of Placer Streams—Part I
When placer miners from the gold rush era began experimenting with the slope of their sluices, they must have pondered the ideal slope for trapping gold in a creek bed too. Logic suggests the same is true for streams...
Copper Deposits of Alaska
Only the famous Kennecott copper mine was able to continue operating through the Depression owing to the exceptional richness of its ore.
The Significance of Nuggets in Placers
Chances are better that both types of gold did not come from the same source. Let's look at the probable conditions to cause two types of gold in a placer.
Rand, Red Mountain, Atolia Mining Districts of Kern and San Bernardino Counties, California
This area could be re-evaluated for placer scheelite and gold potential in the future along with sand and gravel processing…
Another Prospecting Adventure: Coulterville
What also helped keep Coulterville alive was the fact that the town itself happened to be sitting on top of one of the richest veins in the Mother Lode. The ledge itself was three hundred feet wide.
Critical Minerals: Tungsten
Because tungsten minerals are heavy, exploration can be done using stream sediment samples. Prospectors looking for gold have found scheelite or wolframite in their placer concentrates, and in some cases this has led them to make important tungsten finds.
How Far Has That Gold Traveled?
Let’s examine why your placer gold looks the way it does and what you can tell about its journey based upon its appearance.
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Exploration, Frustration & Extreme Heat In Pursuit Of Forresthill Gold!
• Formation of Gold Deposits in the South Eastern United States
• Connecting With The Past With Gold Rush Coins
• Half Moons
• Summertime Gold! Northern & Southern California
• Over the Divide
Free:
The Bawl Mill
• Legislation and Regulation
• PLP Update September 2023
