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The AAPG/Datapages Combined Publications Database
Journal of Sedimentary Research (SEPM)
Abstract
"Bootstrap" Corer
John D. Isaacs, Daniel M. Brown
ABSTRACT
The characteristics and construction of a large, light, coring tool capable of penetrating ocean sediments to a depth of at least 5 to 7 meters are described. The new device, termed a "bootstrap" corer, features: (1) light weight (approx. 140 kg for a tube 7 meters long), (2) simplicity, (3) large internal diameter (approx. 13 cm), (4) powerful "vacuum" operation, (5) deep penetration, (6) a novel piston and pullout relief mechanism that minimizes pullout forces, and (7) a not abnormal degree of distortion of the sediment sample. The device demonstrates principles applicable to a number of feasible devices for penetrating the sediments, such as corers, imbedment anchors, sediment "motors" and the like, and principles suitable for the improvement of other existing corers.
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