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Platinum in Laccoliths
May 2003 by Edgar B. Heylmun, PhD
Laccoliths are unusual igneous features that seem to occur in the stable interior parts of continents. They are concordant igneous intrusions that have domed the overlying rocks and are circular in plan, and less than 10 miles in diameter. This article deals with some of the laccoliths found in the scenic Colorado Plateau province of Utah, Colorado, and Arizona...Additional articles that might interest you...
Ask The Experts
September 2016
• Is there a standard contract for placer mining to use with a private property owner?
• Is there a standard contract for placer mining to use with a private property owner?
The "Rip-Roaring" Flood That Washed Out Mazuma, Nevada
March 2005
Okay, now for the story of not only the Mazuma flash-flood, but also of early day happenings in the surrounding Seven Troughs area as related to me by Gloria’s (late) grandmother, Gommie. At this time (1953-1954) Gommie was in her late 60s and often reminisced regarding her early life in Iowa as a schoolteacher...
Okay, now for the story of not only the Mazuma flash-flood, but also of early day happenings in the surrounding Seven Troughs area as related to me by Gloria’s (late) grandmother, Gommie. At this time (1953-1954) Gommie was in her late 60s and often reminisced regarding her early life in Iowa as a schoolteacher...
Miners Welcome Comments by Alaska Official
December 2003
The head of Alaska’s Department of Environmental Conservation angered environmentalists by saying more than enough acres are being managed for conservation and land set-asides aren’t necessary for environmental protection.
The head of Alaska’s Department of Environmental Conservation angered environmentalists by saying more than enough acres are being managed for conservation and land set-asides aren’t necessary for environmental protection.
Research and Fieldwork Yield Some Promising Gold
October 2013
A week later, a small team of us hit it again, and this time the gold really showed up.
A week later, a small team of us hit it again, and this time the gold really showed up.
Fraser Institute Ranks Best Regions for Mining Investment
March 2004
Attractive geology does not guarantee mining investment if a region’s policies are bad, say mining executives surveyed in the seventh Annual Survey of Mining Companies released by The Fraser Institute.
Attractive geology does not guarantee mining investment if a region’s policies are bad, say mining executives surveyed in the seventh Annual Survey of Mining Companies released by The Fraser Institute.
Detecting Nuggets—Overcoming New Challenges
September 2015
Depth is not an issue unless the site is thoroughly cleaned of shallow trash, and it is far easier to isolate and remove targets using a small coil in a target rich location.
Depth is not an issue unless the site is thoroughly cleaned of shallow trash, and it is far easier to isolate and remove targets using a small coil in a target rich location.
The Highs and Lows of Drywashing
August 2016
We were met with a plethora of mechanical problems with the dry washer and even a few with the excavator that were at times frustrating, but we were in this for the long haul, so we needed to solve these problems and move forward.
We were met with a plethora of mechanical problems with the dry washer and even a few with the excavator that were at times frustrating, but we were in this for the long haul, so we needed to solve these problems and move forward.
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