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Date: 2013-05-07 18:45:49Geography of the United States Shale gas Hydraulic fracturing in the United States Proppants and fracking fluids Natural gas Induced seismicity Marcellus Formation Horn River Formation Hydraulic fracturing Geology Stratigraphy | Singh. Angela K (DOA) From: Sent: To: Subject:Document is deleted from original location. Download Document from Web Archive |