02251nas a2200397   4500000000100000008004100001260003600042653003600078100001900114700001900133700001800152700001600170700001800186700002000204700002200224700001600246700001700262700001800279700001700297700001800314700002100332700002000353700002200373700001600395700001700411700001800428700001700446700001800463700002100481245017400502856005100676300001200727490000700739520108500746020002201831       2011                            d  bSpringer NetherlandsaDordrecht10aEarth and Environmental Science1 aMorelia Urlaub1 aAntonis Zervos1 aPeter Talling1 aDoug Masson1 aChris Clayton1 aYasuhiro Yamada1 aKiichiro Kawamura1 aKen Ikehara1 aYujiro Ogawa1 aRoger Urgeles1 aDavid Mosher1 aJason Chaytor1 aMichael Strasser1 aYasuhiro Yamada1 aKiichiro Kawamura1 aKen Ikehara1 aYujiro Ogawa1 aRoger Urgeles1 aDavid Mosher1 aJason Chaytor1 aMichael Strasser00aHow Do \~2\textdegree Slopes Fail in Areas of Slow Sedimentation? A Sensitivity Study on the Influence of Accumulation Rate and Permeability on Submarine Slope Stability  uhttp://dx.doi.org/10.1007/978-94-007-2162-3_25  a277-2870 v313 aOverpressure generation due to rapid sediment deposition can result in low effective stresses within the sediment column. It has been proposed that these large overpressures are the main preconditioning factor for causing large-scale submarine slope failure on passive continental margins, such as those in the Gulf of Mexico and offshore Norway. The rate of overpressure generation depends on the sedimentation rate, sediment compressibility and permeability. The Gulf of Mexico and the Norwegian continental slope have experienced comparatively high sediment input, but large-scale slope failure also occurs in locations with very low sedimentation rates such as the Northwest African continental margin. Here we show results from 2D numerical modelling of a 2\textdegree continental slope subjected to deposition rates of 0.15 m/ka. These results do not indicate any evidence for significant overpressure or slope instability. We conclude that factors other than overpressure must be fundamental for initiating slope failure, at least in locations with low sedimentation rates.  a978-94-007-2162-3