hydraulic corer

views updated May 08 2018

hydraulic corer (piston corer) A sampling tube that penetrates marine or lake sediments by hydraulic methods, instead of being either a gravity corer or a drilling corer. One version is the Mackereth corer.

hydraulic corer

views updated May 23 2018

hydraulic corer(piston corer) A tube used to obtain samples from lake or marine sediments, which penetrates the material by hydraulic pressure. The Mackereth corer is a hydraulic corer. See also gravity corer.

gravity corer

views updated Jun 11 2018

gravity corer A tube used to obtain samples of lake or marine sediments, which penetrates the material under its own weight. See also hydraulic corer.

gravity corer

views updated May 08 2018

gravity corer A sampling tube that penetrates into marine or lake sediments under its own weight. See also HYDRAULIC CORER.

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Lake sediments

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