Stability studies of surficial sediments in the Wilmington-Lindenkohl Canyons area,eastern U.S. margin |
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| Authors: | Gideon Almagor Richard H Bennett Bonnie A Mc Gregor Les E Shephard |
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| Institution: | (1) Geological Survey of Israel, 95501 Jerusalem, Israel;(2) Seafloor Geosciences Division, Naval Ocean Research and Development Activity NSTL, 39529, MS;(3) U.S. Geological Survey National Center, 22092 Reston, VA;(4) Subseabed Disposal Program, Sandia National Laboratories, 87185 Albuquerque, NM |
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| Abstract: | Stability analysis, based on infinite slope analysis and geotechnical data from a suite of 34 cores collected from the continental
slope between Wilmington and Lindenkohl Canyons, indicates that the Quaternary surficial silty clay sediments on gentle slopes
are stable; that sediment stability on steeper slopes (14°–19°) is marginal; and that on precipitous slopes (>50°) only a
thin veneer of unconsolidated sediments can exist. Small earthquake-induced accelerations or the effects of internal waves
can result in slope sediment instabilities. |
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