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- Title
Overpressure and fluid flow in the new jersey continental slope: implications for slope failure and cold seeps
- Authors
Dugan B; Flemings PB
- Abstract
Miocene through Pleistocene sediments on the New Jersey continental slope (Ocean Drilling Program Site 1073) are undercompacted (porosity between 40 and 65%) to 640 meters below the sea floor, and this is interpreted to record fluid pressures that reach 95% of the lithostatic stress. A two-dimensional model, where rapid Pleistocene sedimentation loads permeable sandy silt of Miocene age, successfully predicts the observed pressures. The model describes how lateral pressure equilibration in permeable beds produces fluid pressures that approach the lithostatic stress where overburden is thin. This transfer of pressure may cause slope failure and drive cold seeps on passive margins around the world.
- Publication
Science (New York, N.Y.), 2000, Vol 289, Issue 5477, p288
- ISSN
1095-9203
- Publication type
Journal Article
- DOI
10.1126/science.289.5477.288