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Marlow, Michael S; Lee, Homa J; Wright, Audrey (1984): Physical properties of sediments at DSDP Holes 78-541 and 78-543. PANGAEA,, Supplement to: Marlow, MS et al. (1984): Physical properties of sediment from the Lesser Antilles Margin along the Barbados Ridge: Results from Deep Sea Drilling Project Leg 78A. In: Biju-Duval, B; Moore, JC; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 78A, 549-558,

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Sediment cored within the Barbados subduction complex at Sites 541 and 542 are underconsolidated. Underconsolidation and changes in physical properties of the cored section can be related to excess pore water pressure that equals the lithostatic load at Site 542 and to major thrust faulting observed at Site 541. Apparently, the pore fluids within the subduction complex are absorbing the tectonic shock of underthrusting. Sediment sampled from the reference Site 543 on the adjacent Atlantic Plate are also underconsolidated. However, underconsolidation in Hole 543 is apparently due to the movement of excess nitrogen gas observed deeper in the hole. Excess gas was not observed at Sites 541 and 542.
Median Latitude: 15.568075 * Median Longitude: -58.709650 * South-bound Latitude: 15.520000 * West-bound Longitude: -58.728300 * North-bound Latitude: 15.712300 * East-bound Longitude: -58.653700
Date/Time Start: 1981-02-13T00:00:00 * Date/Time End: 1981-02-28T00:00:00
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