Detecting for Possible Mid-Range Eluvial Gold
September 2006 by Jim StraightActually, this mid-range gold zone can exist in any eluvial placer field with a shallow zone where the ground “tightens up” below the loosely packed surface dirt to harder packed dirt. However, its presence depends upon several factors:
I wasn’t so hot in science class as a kid, and I’m regretting spending most of that time in class catching up on sleep or daydreaming about being a big league ball player. Never in a million years would I have guessed that science...
Commonly these layers contain small particles of gold and platinum, and in places where they are sufficiently concentrated, the metallic particles are abundant enough to be extracted profitably.
In 1948, I lived alone in the Cerrillos Mountains south of Santa Fe, New Mexico, at the Tom Payne Mine. When lead and zinc metal prices suddenly took a nosedive, our ore and concentrate shipments from the Payne to the ASARCO smelter...
Before the world class beryllium deposits were discovered at Spor Mountain, Utah, in 1959, Nevada was the nation’s principal producer of beryllium. Whereas beryl, found in pegmatites worldwide, is fairly common, some of the other...
On our last trip, we brought ropes and went down the first waterfall forty vertical feet, only to be confronted by a second, sixty-foot-high, overhanging waterfall that emptied into a slot canyon.
Higher gold prices helped boost Nevada’s mining industry in 2003 despite a decline in production for the third straight year.
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.
The Bawl Mill • The Yukon-Klondike Goldfields—Part I • New Mine from Century-Old Gold-Silver Bonanza • Solar Powered Placer Equipment • The Treasure Detective—Part III • Countries Want More Concessions From Miners • New Interim Rules For Washington Miners • Melman on Gold & Silver