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...
Melman on Gold & Silver
July 2016
The “battle lines” are being clearly drawn. By the time you receive this issue both party conventions will take place within just a few weeks and there will be only four months until the final vote.
The “battle lines” are being clearly drawn. By the time you receive this issue both party conventions will take place within just a few weeks and there will be only four months until the final vote.
The Golden Triangle of Sonora, Mexico
May 2001
The “Golden Triangle” dry placer district in Sonora, Mexico, lies some 80 to 100 miles south of the border. It is in desert terrain at elevations between 1,900 and 2,300 feet above sea level.
The “Golden Triangle” dry placer district in Sonora, Mexico, lies some 80 to 100 miles south of the border. It is in desert terrain at elevations between 1,900 and 2,300 feet above sea level.
Ask the Experts: Ionizing mercury
May 2012
Q: What exactly does "ionizing" mercury mean?
Q: What exactly does "ionizing" mercury mean?
Ask the Experts—Are you able to advise me on the status of HR3824?
June 2007
Q: I am doing research regarding potential litigation involving the Endangered Species Act. Are you able to advise me on the status of the following:? HR 3824, The Endangered Species Recovery Act of 2005 (TESRA) introduced in the House of Representatives in September, 2005.
Q: I am doing research regarding potential litigation involving the Endangered Species Act. Are you able to advise me on the status of the following:? HR 3824, The Endangered Species Recovery Act of 2005 (TESRA) introduced in the House of Representatives in September, 2005.
The Bawl Mill
February 2011
• Unsustainable is an understatement
• Famous last words...
• Their good deed did not go unnoticed
• Truth in Advertising
• Unsustainable is an understatement
• Famous last words...
• Their good deed did not go unnoticed
• Truth in Advertising
Beryllium in Utah
June 2002
Much of the world’s supply of beryllium is mined by Brush-Wellman, Inc., at Spor Mountain, Utah. The district is in a harsh desert environment which receives only 6 inches of precipitation a year, barely enough to support scrubby desert growth.
Much of the world’s supply of beryllium is mined by Brush-Wellman, Inc., at Spor Mountain, Utah. The district is in a harsh desert environment which receives only 6 inches of precipitation a year, barely enough to support scrubby desert growth.
The Rich Hill Outing
April 2006
Out in the western gold country, the traffic of electronic prospectors on the hills appears to be increasing at a rapid rate. While a lot of factors are contributing to this, probably the biggest force attracting these new folks is the continuing...
Out in the western gold country, the traffic of electronic prospectors on the hills appears to be increasing at a rapid rate. While a lot of factors are contributing to this, probably the biggest force attracting these new folks is the continuing...
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The Bawl Mill
• Searching for Placer Diamonds
• Lawsuit on Alleged Market Manipulation Continues
• Texas "Hill Country" Gold
• A Guide to Overlooked Gold Deposits—Part IV
• Picks & Pans: Detecting in Northern Nevada
• Miners Welcome Comments by Alaska Official
• Company Notes
• Spectacular Specimens Found in Northern Nevada
• New Life for the Suction Nozzle
• Looking Back
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
