EARTHWORKS

Content tagged with "Porphyry"

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Library

US Copper Porphyry Mines

Bonnie Gestring, Earthworks | August 6, 2012


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#oiltrains map of PA by @PennEnvironment and @FracTracker: bit.ly/1F72yzb
CA regulators stop 12 underground injection wells in Kern County to protect groundwater bit.ly/1M5lbrE #fracking

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