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jet corer |
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Consists of a length of pipe that is lowered from a vessel to obtain
samples. High-velocity water is pumped through the pipe, and the jetting
action of this water issuing from the lower end of the pipe very
effectively cuts a hole in the unconsolidated overburden sediments. Once
at bedrock, the pipe is rammed into the rock with sufficient force to
obtain a plug several inches in length. Mero
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