Dugan B, Flemings PB
503 Deike Building, Department of Geosciences, Penn State University, University Park, PA 16802, USA.
Science. 2000 Jul 14;289(5477):288-91. doi: 10.1126/science.289.5477.288.
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.
新泽西大陆坡（大洋钻探计划1073站点）中新世至更新世沉积物在海底以下640米深度处压实不足（孔隙度在40%至65%之间），这被解释为记录了达到岩石静压力95%的流体压力。一个二维模型成功预测了观测到的压力，该模型中快速的更新世沉积作用加载在中新世时期的可渗透砂质粉砂层上。该模型描述了可渗透层中的侧向压力平衡如何产生接近岩石静压力的流体压力，这种压力转移可能导致边坡失稳，并驱动全球被动大陆边缘的冷泉。
