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Prospecting for Silver With a Geiger Counter
January 2001 by Edgar B. Heylmun, PhD
Light-colored volcanic tuff or tuffaceous sandstone often contains small amounts of uranium, enough to be detected with a sensitive radiation detector. Sometimes, the mass effect of the radiation is substantial.Additional articles that might interest you...
Legislative and Regulatory Update
March 2000
• Alaska Dredging Draft General Permit AKG-37-1000
• Where the candidates stand
• Alaska Dredging Draft General Permit AKG-37-1000
• Where the candidates stand
Adventure at the 420 Level
March 2000
Beneath the rolling fairways and manicured greens of a sedate golf course community in Cabarrus County, North Carolina, lie the 600-foot deep, water filled, caved workings of the once famous Phoenix Gold Mine.
Beneath the rolling fairways and manicured greens of a sedate golf course community in Cabarrus County, North Carolina, lie the 600-foot deep, water filled, caved workings of the once famous Phoenix Gold Mine.
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.
Nevada Claim Holders Form Coalition
October 2010
Unlike producing mines, exploration companies and claim holders owning non-producing claims are not reaping a windfall of increased profits from the recent high prices for precious metals and other raw materials.
Unlike producing mines, exploration companies and claim holders owning non-producing claims are not reaping a windfall of increased profits from the recent high prices for precious metals and other raw materials.
Prospecting Australia—Part III Anatomy of a Nugget Patch in Western Australia
December 2011
One of the most memorable nuggets I found in Australia was detected on the very last day that I was out prospecting. I was going along swinging my coil and I came across a blaring loud signal that almost blew my ears off.
One of the most memorable nuggets I found in Australia was detected on the very last day that I was out prospecting. I was going along swinging my coil and I came across a blaring loud signal that almost blew my ears off.
2015 World Gold Panning Championships
October 2015
Every Spanish village seems to hold their pride in one unique area of expertise. Pamplona has its bulls, Barcelona its architecture, and gold panning belongs to Navelgas.
Every Spanish village seems to hold their pride in one unique area of expertise. Pamplona has its bulls, Barcelona its architecture, and gold panning belongs to Navelgas.
Glen's Big Find
November 2008
One of the largest gold nuggets ever found with a VLF metal detector: I got a huge signal, and I was thinking it was just another piece of junk—perhaps an old can or piece of a shovel.
One of the largest gold nuggets ever found with a VLF metal detector: I got a huge signal, and I was thinking it was just another piece of junk—perhaps an old can or piece of a shovel.
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