FN Archimer Export Format
PT J
TI Morphological control of slope instability in contourites: a geotechnical approach
BT 
AF MIRAMONTES, Elda
   GARZIGLIA, Sebastien
   SULTAN, Nabil
   JOUET, Gwenael
   CATTANEO, Antonio
AS 1:1,2;2:1;3:1;4:1;5:1;
FF 1:;2:PDG-REM-GM-LAD;3:PDG-REM-GM;4:PDG-REM-GM-LGS;5:PDG-REM-GM-LAD;
C1 IFREMER, Geosci Marines, F-29280 Plouzane, France.
   IUEM UBO, CNRS, UMR6538, Domaines Ocean, F-29280 Plouzane, France.
C2 IFREMER, FRANCE
   CNRS, FRANCE
SI BREST
SE PDG-REM-GM-LAD
   PDG-REM-GM
   PDG-REM-GM-LGS
UM LGO
IN WOS Ifremer jusqu'en 2018
   copubli-france
IF 4.252
TC 38
UR https://archimer.ifremer.fr/doc/00425/53636/56652.pdf
LA English
DT Article
CR CORFAN
   CORFAN 2
   PAMELA-PAPRICA
   PRISME 2
   PRISME 3
   SIGOLO
BO L'Europe
   Le Suroît
   L'Atalante
   Pourquoi pas ?
DE ;Sediment drift;Submarine landslide;Undrained shear strength;Hemipelagite;Mediterranean Sea
AB Contourite drifts are sediment bodies formed by the action of bottom currents. They are common features found on continental slopes and are often affected by slope failure. However, processes controlling slope instability in contourite depositional systems are still not well constrained, and it is not clear whether contourites have particular properties that make them more susceptible to slope failure. In this study, we compare sedimentological and geotechnical properties of contouritic and hemipelagic sediments within the Corsica Trough (northern Tyrrhenian Sea) using geophysical data sets and sediment cores in order to get a better understanding of the controlling factors of slope stability. Geomorphological and slope stability analyses reveal that differences in sediment properties have little influence on the location of submarine landslides, in comparison with the morphology of the drifts. Hence, the steep downslope flanks of plastered drift deposits are the most susceptible zones for local failure initiation. Moreover, as erosion is common at the foot of plastered drifts, undercutting is thought to contribute to the development of large-scale failure up to the point that submarine landslides are triggered. 
PY 2018
PD JUL
SO Landslides
SN 1612-510X
PU Springer Heidelberg
VL 15
IS 6
UT 000432127000003
BP 1085
EP 1095
DI 10.1007/s10346-018-0956-6
ID 53636
ER

EF