Prospecting for Silver With a Geiger Counter
January 2001 by Edgar B. Heylmun, PhDLight-colored volcanic tuff or tuffaceous sandstone often contains small amounts of uranium, enough to be detected with a sensitive radiation detector. Sometimes, the mass effect of the radiation is substantial.
John Frémont was a man whose luck regularly swung from one extreme to another. At times he seemed to be the luckiest man on earth, yet he sometimes made bad decisions that got him into a considerable amount of trouble.
For those who are perplexed and puzzled by the mystery of “hot rocks,” or are considering using a VLF-type metal detector to seek gold nuggets, please read on.
Over the last several months, starting from before I left for Australia, I’ve been working on getting all the 2011 paperwork done for my mining claims. I will admit that some parts of the paperwork I let go until only a week or two before the due date.
The Sierra Mojada Project lies within a historic high grade silver, lead and zinc mining district originally discovered in 1879.
Three environmental groups have served formal notice that they intend to sue the U.S. Forest Service for failing to protect the Canada lynx as a threatened species under the Endangered Species Act.
When we got set up and I started to swing the coil over a small mound, I got a good signal, faint but repeatable.
It seems like we cannot get away from the major themes as each month we continue to receive important news on the same general categories such as housing, global warming, Iran, weakness in the US Dollar, etc. Unfortunately, if variety happens to be your cup of tea, the same categories have dominated the news once again.
The Bawl Mill • Over the Divide • Our Readers Say • Special Editorial: Gold Anti-Trust Action Committee Believes They Have the Evidence • World Gold Council News • Metal Detecting Within the Cordillera for Gold Placers Associated With Tertiary Epithermal Ore Deposits • Picks & Pans: An Exciting Hobby • The Furnace Atmosphere During the Fire Assay • The Hanging Tree • Gold in Chihuahua, Mexico • ICMJ 10th Annual Photo Contest Results • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices • Looking Back