Sentences with phrase «rock deposits thousands»
Not exact matches
Gray rubble on the flanks of Mauna Kea on the island of Hawaii lie in contrast to the red volcanic rock behind them, and were deposited by a glacier that disappeared thousands of years ago.
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«Other sediments continued to be deposited and further buried the oganic - rich sediment layer to depths of thousands of feet, compressing the layers into a rock that would become the source for oil.
A fracture caused by the drilling process would have to extend through the several thousand feet of rock that separate deep shale gas deposits from freshwater aquifers.