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Sampling Mineral Deposits
March 2007 by Staff
The accurate sampling of mineral deposits for testing and analysis is perhaps the most important step involved in both mineral exploration and development. It is a critical factor in initial prospecting efforts and the preliminary investigation of grassroots exploration projects, yet sampling is often performed in a haphazard and incomplete fashion during the early stages of prospecting and exploration activities.Suction Dredging Battle Escalates
• State attorneys claim the Court of Appeals wrongly relied on South Dakota Mining Association v. Lawrence County regarding federal preemption...
Sierra County Gold—Part II
...we will continue our examination of the rich streams and mining districts, and then take a look at some of the big nuggets that have been found here.
2000 National Mining Hall of Fame Inductees
ICMJ congratulates this year's inductees to the National Mining Hall of Fame.
Hunting for Hardrock: The Basics
Exposed veins and outcroppings can be a great source for gathering good gold ore for processing. Veins and outcroppings do require a lot of work to free the ore from its earthen grip, but this labor can be very rewarding.
Pediments
A pediment is a broad, gently sloping erosion surface or plain of low relief that is often found in arid and semi-arid regions at the base of a receding mountain front. The example shown is from the Palo Verde Ranch 15-minute topographic quadrangle, southwest of Tucson, Arizona. This is one of the best examples the writer has ever seen.
BLM 3809 Final Rule Implications
Many readers of ICMJ have asked for more information regarding the BLM’s 3809 regulation changes that were pushed through just prior to the departure of the Clinton Administration.
Gondwana Gold Gravels
The German scientist, Alfred Wegener, came out with his theory of "continental drift" in 1912. He was considered a crackpot and it was half a century before geologists and planetary scientists began to take a second look at his theory.
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The Bawl Mill
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• Mining Stock Quotes and Mineral & Metal Prices
