All Articles
Oil Seeps in Arizona
December 2003 by Edgar B. Heylmun, PhD
Compared to California, Arizona has virtually no oil seeps. But, the great Permian Basin of West Texas has virtually none either. Arizona has something that neither California nor Texas have, and that is public lands that are open for leasing. The northern half of Arizona has more seeps and is thus of greater interest, but it would be foolish to disregard the southern half because giant oil and natural gas fields could underlie some of the broad desert valleys.Additional articles that might interest you...
The Most Obvious Place
April 2009
“The biggest nugget you’ll ever find is in a spot that many have walked over for years.” I’m not sure who told me that, but the more I think about that statement, the more it makes sense.
“The biggest nugget you’ll ever find is in a spot that many have walked over for years.” I’m not sure who told me that, but the more I think about that statement, the more it makes sense.
Silver at Calico, California
April 2001
Silver was discovered in the mountains as early as 1875, but the first “official” discovery was in 1881.
Silver was discovered in the mountains as early as 1875, but the first “official” discovery was in 1881.
California Miners Locate Rich Pocket of Specimen Gold
February 2005
Over fifty pieces of dendritic gold, ranging from 1 gram up to 2.5 ounces, were recently discovered at a mine in the Allegheny Mining District in Northern California.
Over fifty pieces of dendritic gold, ranging from 1 gram up to 2.5 ounces, were recently discovered at a mine in the Allegheny Mining District in Northern California.
Operation And Application Of Magnetometers
October 2014
The technology used in these devices has advanced greatly in the last century. Many different types of physical effects are used to measure these magnetic fields and we will briefly look at some of these.
The technology used in these devices has advanced greatly in the last century. Many different types of physical effects are used to measure these magnetic fields and we will briefly look at some of these.
Mining Stock Quotes and Mineral & Metal Prices
September 2005
Mining Stock Quotes, Mineral & Metal Prices
September 2007
Central Coast Ranges
May 2003
A series of coastal ranges, separated by narrow valleys, characterize coastal California south of Monterey. The mountains rise to 5,800 feet in elevation, with annual rainfall varying from 12 to 64 inches, depending on elevation and exposure.
A series of coastal ranges, separated by narrow valleys, characterize coastal California south of Monterey. The mountains rise to 5,800 feet in elevation, with annual rainfall varying from 12 to 64 inches, depending on elevation and exposure.
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