Platinum in Laccoliths
May 2003 by Edgar B. Heylmun, PhDLaccoliths 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...
• Skeletons in the closet
• Stop horsing around!
• Know your veggies!
• Leaked documents show BLM’s true intentions
• New Oregon small-scale prospecting rules
• Pacific Legal Foundation files suit to de-list Klamath salmon
• Draft EIS on Suction Dredging in the Siskiyou National Forest
• More Siskiyou National Forest news
• District Court rules in favor of Nicolet Minerals
• State Supreme Court backs mining company
• Just because it looks American, doesn’t mean it is…
• Attempted hacking by Homeland Security?
• 37% more than they counted on…
• The high price of wind power
I particularly enjoyed this little expedition. It is always nice to get out and spend time with my father, Bud Herschbach. He has taken a liking to Mills Creek and was anxious to return and look for more nuggets.
We found the area where this patch of gold nuggets was located by researching several books on old mining districts. By the end of the 2006 winter we had about five different locations that we wanted to investigate.
Ask the lab manager how your ores will be tested, and ask to see the equipment that will be used. If you are told it’s a secret that can’t be explained, you need another assayer.
The Ball Mill • Our Readers Say • WMD Raffle Raises Funds for Lawsuit • Gold in Alabama • From the Editor • Yukon Placer Miners Fighting Extreme Discharge Limits • Picks & Pans: Red Beryl Mining—Beaver County, Utah • The Investigation • A Gold Detector Sitting in a Closet Only Finds Dust—A Potpourri of Detector Tips • Central Coast Ranges • Poll: Montana in Favor of Repealing Anti-Mining Initiative • Mining Stock Quotes and Mineral & Metal Prices • Looking Back • Melman on Gold & Silver