FN Archimer Export Format
PT J
TI Geophysical evidence for a transform margin offshore Western Algeria: a witness of a subduction-transform edge propagator?
BT 
AF BADJI, Rabia
   CHARVIS, Philippe
   BRACENE, Rabah
   GALVE, Audrey
   BADSI, Madjid
   RIBODETTI, Alessandra
   BENAISSA, Zahia
   KLINGELHOEFER, Frauke
   MEDAOURI, Mourad
   BESLIER, Marie-Odile
AS 1:1,2,3;2:2;3:1;4:2;5:1;6:2;7:3;8:4;9:1;10:2;
FF 1:;2:;3:;4:;5:;6:;7:;8:PDG-REM-GM-LGG;9:;10:;
C1 Sonatrach, Division exploration, Bât C, Avenue du 1er Novembre, B.P 68M, Boumerdes, Algeria.
   Université Nice Sophia Antipolis, IRD, CNRS, Observatoire de la Côte d'Azur, Géoazur, 250 rue Albert Einstein, F-06560, Sophia Antipolis, France
   Université des sciences et de la technologie Houari Boumediene, USTHB, FSTGAT, el-alia Algiers, Algeria
   Ifremer, Department of marine Geosciences, ZI de la Pointe de Diable, CS10070, Plouzané, France
C2 SONATRACH, ALGERIA
   UNIV NICE, FRANCE
   UNIV SCI & TECHNOL HOUARI BOUMEDIENE, ALGERIA
   IFREMER, FRANCE
SI BREST
SE PDG-REM-GM-LGG
IN WOS Ifremer jusqu'en 2018
   copubli-france
   copubli-univ-france
   copubli-int-hors-europe
   copubli-sud
IF 2.484
TC 27
UR https://archimer.ifremer.fr/doc/00255/36670/35278.pdf
   https://archimer.ifremer.fr/doc/00255/36670/35279.pdf
LA English
DT Article
CR MARADJA
   SPIRAL
BO Le Suroît
   L'Atalante
DE ;Seismic tomography;Continental margins: transform;Crustal structure;Africa;Europe.
AB For the first time, a deep seismic data set acquired in the frame of the Algerian-French SPIRAL program provides new insights regarding the origin of the westernmost Algerian margin and basin. We performed a tomographic inversion of traveltimes along a 100-km-long wide-angle seismic profile shot over 40 ocean bottom seismometers offshore Mostaganem (Northwestern Algeria). The resulting velocity model and multichannel seismic reflection profiles show a thin (3-4 km thick) oceanic crust. The narrow ocean-continent transition (less than 10 km wide) is bounded by vertical faults and surmounted by a narrow almost continuous basin filled with Miocene to Quaternary sediments. This fault system, as well as the faults organized in a negative-flower structure on the continent side, marks a major strike-slip fault system. The extremely sharp variation of the Moho depth (up to 45 +/- 3 degrees) beneath the continental border underscores the absence of continental extension in this area. All these features support the hypothesis that this part of the margin from Oran to Tenes, trending N65-N70 degrees E, is a fossil subduction-transform edge propagator fault, vestige of the propagation of the edge of the Gibraltar subduction zone during the westward migration of the Alboran domain.
PY 2015
PD FEB
SO Geophysical Journal International
SN 0956-540X
PU Wiley / Blackwell
VL 200
IS 2
UT 000350042400024
BP 1027
EP 1043
DI 10.1093/gji/ggu454
ID 36670
ER

EF