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...
Rediscovering Placerville, California Part II
March 2011
To get to the gold, the miners had to remove the shale pieces and stack them on the sides while sluicing the remaining material through their boxes.
To get to the gold, the miners had to remove the shale pieces and stack them on the sides while sluicing the remaining material through their boxes.
Conducting Research To Find New Gold Deposits
March 2008
...this time of year the days are short, the temperatures cold and the weather reliably poor. That’s why the middle of winter is the best time for me to be doing research to find new gold deposits and places to explore after the weather warms and...
...this time of year the days are short, the temperatures cold and the weather reliably poor. That’s why the middle of winter is the best time for me to be doing research to find new gold deposits and places to explore after the weather warms and...
Dredging the Mokelumne
February 2008
Gold mining adventures can begin in the most unusual fashion. This one started when the high water receding in May of 1999 disclosed that a tragedy had occurred somewhere upstream of Slaughterhouse Gulch on the north fork of the...
Gold mining adventures can begin in the most unusual fashion. This one started when the high water receding in May of 1999 disclosed that a tragedy had occurred somewhere upstream of Slaughterhouse Gulch on the north fork of the...
Ivanhoe Partners With Rio Tinto
November 2006
Ivanhoe Mines announced that Rio Tinto will invest $1.5 billion to engineer, construct and operate Ivanhoe’s Oyu-Tolgoi copper and gold project in the South Gobi region of Mongolia.
Ivanhoe Mines announced that Rio Tinto will invest $1.5 billion to engineer, construct and operate Ivanhoe’s Oyu-Tolgoi copper and gold project in the South Gobi region of Mongolia.
Company Notes
January 2003
• Vista Gold Corp.
• Wolfden Resources Inc.
• NovaGold Resources
• Globex Mining Enterprises
• Canyon Resource Corp.
• Vista Gold Corp.
• Wolfden Resources Inc.
• NovaGold Resources
• Globex Mining Enterprises
• Canyon Resource Corp.
Picks & Pans: Selecting a Gold Dredge
June 2001
I have made my living gold dredging for the past 25 years, and I am often asked how someone should choose their first, or next dredge. There are many considerations, and I hope to save you time and aggravation by sharing with you what I have learned.
I have made my living gold dredging for the past 25 years, and I am often asked how someone should choose their first, or next dredge. There are many considerations, and I hope to save you time and aggravation by sharing with you what I have learned.
Gold in Quartz
February 2016
Because quartz and gold may be deposited together across a considerable range of temperatures, not all quartz veins are the same, and there are several different types of gold-quartz deposits.
Because quartz and gold may be deposited together across a considerable range of temperatures, not all quartz veins are the same, and there are several different types of gold-quartz deposits.
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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
