FN Archimer Export Format
PT J
TI Structural evolution and strike-slip tectonics off north-western Sumatra
BT 
AF BERGLAR, Kai
   GAEDICKE, Christoph
   FRANKE, Dieter
   LADAGE, Stefan
   KLINGELHOEFER, Frauke
   DJAJADIHARDJA, Yusuf S.
AS 1:1;2:1;3:1;4:1;5:2;6:3;
FF 1:;2:;3:;4:;5:PDG-DOP-DCB-GM-LGG;6:;
C1 Fed Inst Geosci & Nat Resources, Bundesanstalt Geowissensch & Rohstoffe, D-30655 Hannover, Germany.
   IFREMER, Ctr Brest, F-29280 Plouzane, France.
   Agcy Assessment & Applicat Technol, Jakarta 10340, Indonesia.
C2 BGR, GERMANY
   IFREMER, FRANCE
   BPPT, INDONESIA
SI BREST
SE PDG-DOP-DCB-GM-LGG
IN WOS Ifremer jusqu'en 2018
   copubli-europe
   copubli-int-hors-europe
   copubli-sud
IF 2.509
TC 27
UR https://archimer.ifremer.fr/doc/00000/11149/7818.pdf
LA English
DT Article
DE ;Oblique subduction;Strike slip;Forearc basin;Sumatra;Mentawai Fault Zone;West Andaman Fault
AB Based on new multi-channel seismic data, swath bathymetry, and sediment echosounder data we present a model for the interaction between strike-slip faulting and forearc basin evolution off north-western Sumatra between 2 degrees N and 7 degrees N. We examined seismic sequences and sea floor morphology of the Simeulue- and Aceh forearc basins and the adjacent outer arc high. We found that strike-slip faulting has controlled the forearc basin evolution since the Late Miocene. The Mentawai Fault Zone extends up to the north of Simeulue Island and was most probably connected farther northwards to the Sumatran Fault Zone until the end of the Miocene. Since then, this northern branch jumped westwards, initiating the West Andaman Fault in the Aceh area. The connection to the Mentawai Fault Zone is a left-hand step-over. in this transpressional setting the Tuba Ridge developed. We found a right-lateral strike-slip fault running from the conjunction of the West Andaman Fault and the Tuba Ridge in SSW-direction crossing the outer arc high. As a result, extrusion formed a marginal basin north of Simeulue Island which is tilted eastwards by uplift along a thrust fault in the west. The shift of strike-slip movement in the Aceh segment is accompanied by a relocation of the depocenter of the Aceh Basin to the northwest, forming one major Neogene unconformity. The Simeulue Basin bears two major Neogene unconformities, documenting that differences in subsidence evolution along the northern Sumatran margin are linked to both forearc-evolution related to subduction processes and to deformation along major strike-slip faults. (c) 2009 Elsevier B.V. All rights reserved.
PY 2010
SO Tectonophysics
SN 0040-1951
PU Elsevier Science Bv
VL 480
IS 1-4
UT 000274054700010
BP 119
EP 132
DI 10.1016/j.tecto.2009.10.003
ID 11149
ER

EF