Cores of unconsolidated wet sand can be obtained by: (1) hammering plastic tubing into sand with a board; (2) filling the remainder of the tube with water and corking the tube to create a vacuum; and (3) pulling the tube, releasing the vacuum, and extruding the core. Depositional structures, concentrations of opaque minerals, differences in oxidation, orientation and preservation of shells, and stratigraphic contacts are strikingly well preserved in the resulting cores.

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