| http://www.w3.org/ns/prov#value | - Good article in Saturday's CHCH Press.Not sure whether it is available yet on line.Basically: Fracking is a process by which gas and oil is gained by drilling into open rock deep in the earth and then fracturing the rock with water, sand and lubricant chemicals inserted at high pressure down into shale.A blast fractures the shale bed around the well.
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