Recent Sedimentary Processes Along the Makran Trench (Makran Active Margin, Off Pakistan)
Marine Geology 271 (2010) 17–31 Contents lists available at ScienceDirect Marine Geology journal homepage: www.elsevier.com/locate/margeo Recent sedimentary processes along the Makran trench (Makran active margin, off Pakistan) Nicolas Mouchot a,⁎, Lies Loncke b, Geoffroy Mahieux c, Julien Bourget d, Siegfried Lallemant a, Nadine Ellouz-Zimmermann e, Pascale Leturmy a a Université de Cergy-Pontoise, GEC Geosciences Environnement Cergy, 5 mail Gay Lussac, 95031 Cergy Cedex, France b Université de Perpignan, Laboratoire IMAGES, 52 av Paul Alduy, 66860 Perpignan, France c Université de Picardie Jules Verne, FRE 3298 Geosystemes, 80000 Amiens, France d Université de Bordeaux, UMR 5805 EPOC, 33000 Bordeaux, France e Institut Français du Pétrole, 1 & 2 av Bois Préau, 92500 Rueil-Malmaison, France article info abstract Article history: A geophysical and geological survey (CHAMAK) has been carried out on the Makran accretionary wedge off Received 14 November 2008 Pakistan in order to understand the structure of the margin and the recent sedimentary processes in this self- Received in revised form 18 January 2010 maintaining prism disconnected from the modern Indus inputs (Qayyum et al., 1997; Gaedicke et al., 2002a; Accepted 21 January 2010 Schluter et al., 2002). Available online 29 January 2010 Morphostructural analysis, based on the interpretation of bathymetric data and backscatter imagery, as well Communicated by D.J.W. Piper as a 3.5 kHz echo-character mapping, allow us to distinguish three structural domains, from north to south, where sedimentary processes differ: (1) the accretionary wedge to the north, (2) the trench and (3) the Keywords: northern Murray Ridge at the seaward edge of the trench.
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