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Synclinal Oil
April 2005 by Edgar B. Heylmun, PhD
Most oilfields are found in anticlinal faults, or stratigraphic traps. Oil floats on water, so that it will rise to the highest point possible, above the water. If the porous or fractured sandstone or limestone that contains the oil is overlain by impervious shale, the oil can no longer rise. If the porous bed is arched upward...Additional articles that might interest you...
USFS Criticized for Renting Chopper in Nevada Dispute
November 2003
The Forest Service is being criticized for spending $15,000 to rent a helicopter to empty sewage from a remote outhouse in northeast Nevada, work a citizens group had volunteered to do for free by using a closed forest road that the group wants reopened.
The Forest Service is being criticized for spending $15,000 to rent a helicopter to empty sewage from a remote outhouse in northeast Nevada, work a citizens group had volunteered to do for free by using a closed forest road that the group wants reopened.
Picks & Pans: Fig Tree, Grape Vine and Good Gold
November 2002
The south fork of the Yuba River was still too high to cross safely on the first day of the dredging season for 2002, but Leon was able to use this condition to his advantage. He dredged high on the bank where big dredges would not go and produced...
The south fork of the Yuba River was still too high to cross safely on the first day of the dredging season for 2002, but Leon was able to use this condition to his advantage. He dredged high on the bank where big dredges would not go and produced...
My Great Nevada Adventure
July 2015
…with renewed determination and a belief in success, I did finally find a nugget. It was there waiting under a bush not 50 feet from my truck.
…with renewed determination and a belief in success, I did finally find a nugget. It was there waiting under a bush not 50 feet from my truck.A Few Thoughts About Successful Nugget Hunting
November 2013
...I got the faintest of rises in the threshold. It was hardly a signal at all, and I thought it was one of the many, deep, hot rocks in the area.
...I got the faintest of rises in the threshold. It was hardly a signal at all, and I thought it was one of the many, deep, hot rocks in the area.
Melman on Gold & Silver
January 2000
Well, this is it, the dawning of the new Millennium. By the time you receive this issue, we will be on the threshold of a new year, decade, century and thousand years. The last people to enjoy such a time were those who lived in the year 999—but there was a staggering difference. At that time...
Well, this is it, the dawning of the new Millennium. By the time you receive this issue, we will be on the threshold of a new year, decade, century and thousand years. The last people to enjoy such a time were those who lived in the year 999—but there was a staggering difference. At that time...
Small-Scale Concentrating and Recovery Methods
April 2011
The first step in my recovery process after milling the ore to the desired size is to table it. On this particular ore, I get good results milling it to minus 100 mesh.
The first step in my recovery process after milling the ore to the desired size is to table it. On this particular ore, I get good results milling it to minus 100 mesh.
Looking Back
October 2002
Excerpts from California Mining Journal, our original title, published 50 years ago this month.
Excerpts from California Mining Journal, our original title, published 50 years ago this month.
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The Bawl Mill
• Our Readers Say
• Progress Report on Washington State Small-Scale Regulations
• Pediments
• Bill to Allow Mining of Coeur d'Alene Basin
• Dredging Below the Homestake
• Looking Back
• Picks & Pans: The Glory Hole
• Enthusiastic Crowds at PDAC
• Fraser Institute Survey Results Rank Best (and Worst) Mining Locales
• Small-Scale Prospecting & Mining (A Little History)
• Higher Zinc Price Creates Opportunity
• Government Appeals Miner Injury Case to Supreme Court
• Mining Stock Quotes and Mineral & Metal Prices
• Melman on Gold & Silver
