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Spatial and Temporal Relation of Submarine Landslides and Faults Along the Israeli Continental Slope, Eastern Mediterranean

机译:沿以色列大陆坡潜艇滑坡和断层的空间和时间关系,东地中海

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A new study of the Israeli Mediterranean continental slope provides an understanding of the interaction between submarine landslides, fault scarps, and subsurface evaporites. Faults and landslides interact in the northern part of the studied continental slope where fault scarps rupture the seabed. In this area landslides are thought to be triggered by over-steepened fault-scarps and are observed to cover older fault scarps, or be cut by younger faults. These variable cross-cutting relationships indicate a multi-phase history in which landsliding and faulting both post-date and pre-date one another. Isopach maps of the Messinian evaporites further reveal that fault scarps are mainly found along a slope-parallel belt where the underlying salt layer is 150-500 m thick. We suggest that this rather thin sequence of the Messinian evaporites associated with faulting serves as a localized detachment zone for the overlaying strata. We argue that the multi-phase and spatially variable association of landslides and faults reveal a highly dynamic continental slope, which may be still active in the present day.
机译:对以色列地中海大陆坡的新研究提供了对潜艇滑坡,故障围巾和地下蒸发器之间的相互作用的理解。故障和山体滑坡在学习的大陆坡的北部互动,其中过滤围巾破裂海底。在这方面,山体滑坡被认为是通过过度陡峭的故障轴触发的,并且被观察到覆盖较旧的故障围巾,或者由年轻故障切割。这些可变的横切关系表示多相历史,其中落台和故障后期后和彼此预先约会。 Messinian蒸发岩的ISOPACH地图进一步揭示了沿着坡平行带,底层盐层厚的斜坡平行带厚。我们建议与断层相关的Messinian蒸发器的这种相当薄的序列用作覆盖层的局部分离区。我们认为山体滑坡和故障的多相和空间可变结合揭示了一种高度动态的大陆坡,这可能在当前仍然活跃。

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