All Articles
Metal Detecting for Gold Within Andesite and Basaltic Volcanic Mining Districts
May 2006 by Jim Straight
Andesites and basalts are the most common volcanic rocks in the North American Cordillera. The andesites originated within the earth’s continental crust, while the basalts originated within the mantle. According to the Plate Tectonic theory...
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Greenstone
August 2004
Greenstone is a hard, tough, altered igneous rock, usually dark green in color. The term “greenstone” has been loosely applied to all greenish rock, including peridotite, dunite, jade, serpentine, and even hydro thermally altered rocks in mining districts. True greenstone is...
Greenstone is a hard, tough, altered igneous rock, usually dark green in color. The term “greenstone” has been loosely applied to all greenish rock, including peridotite, dunite, jade, serpentine, and even hydro thermally altered rocks in mining districts. True greenstone is...
Legislative and Regulatory Update
August 2008
As mentioned in last month’s column, California Assemblywoman Lois Wolk attached a rider to the pending budget bill. The rider calls for a new study (Environmental Impact Report) on the effects of suction gold dredging, funding for the study, and a two-year moratorium on suction dredging while the study is being completed.
As mentioned in last month’s column, California Assemblywoman Lois Wolk attached a rider to the pending budget bill. The rider calls for a new study (Environmental Impact Report) on the effects of suction gold dredging, funding for the study, and a two-year moratorium on suction dredging while the study is being completed.
Detecting Old Ground Sluice Locations
December 2012
Ground sluicing, surfacing and scratching are a few names given to the recovery of gold in shallow areas. Where I live, the hills are dotted with small surface diggings.
Ground sluicing, surfacing and scratching are a few names given to the recovery of gold in shallow areas. Where I live, the hills are dotted with small surface diggings.
New Mining Regulations in Maine
February 2014
Renewed interest in mining of gold, silver, copper and other metals in Aroostook County's Bald Mountain triggered 2012 legislation requiring the overhaul of the state's two-decade-old mining regulations.
Renewed interest in mining of gold, silver, copper and other metals in Aroostook County's Bald Mountain triggered 2012 legislation requiring the overhaul of the state's two-decade-old mining regulations.
Ask The Experts
January 2016
Viewing details on Google Earth
Viewing details on Google Earth
Our Readers Say
June 2012
Comments Regarding our Gold Prospecting and Mining Summit in mid-May...
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Comments Regarding our Gold Prospecting and Mining Summit in mid-May...
"What you did for us was very special...."
"Your patience with all of us is to be commended..."
"I learned a lot and hope to be back again next year...."
Mining Stock Quotes and Mineral & Metal Prices
August 2017
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• Basic Geology for the Independent Miner—Part V Geology of Hardrock Gold Deposits
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• Identifying the Noble Metals Simple Tests That Work
• Melman on Gold & Silver
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