FN Archimer Export Format
PT J
TI Successive shifts of the India-Africa transform plate boundary during the Late Cretaceous-Paleogene interval: implications for ophiolite emplacement along transforms
BT 
AF Rodriguez, Mathieu
   Huchon, Philippe
   Chamot-Rooke, Nicolas
   Fournier, Marc
   Delescluse, Matthias
   Smit, Jeroen
   Plunder, Alexis
   Calvès, Gérôme
   Ninkabou, Dia
   Pubellier, Manuel
   François, Thomas
   Agard, Philippe
   Gorini, Christian
AS 1:1;2:2;3:1;4:2;5:1;6:3;7:2;8:4;9:1,2;10:1;11:5;12:2;13:2;
FF 1:;2:;3:;4:;5:;6:;7:;8:;9:;10:;11:;12:;13:;
C1 Laboratoire de Géologie, Ecole normale supérieure, PSL research university, CNRS UMR 8538, 24 rue Lhomond, 75005 Paris, France
   Sorbonne Université, CNRS-INSU, Institut des Sciences de la Terre de Paris, ISTeP UMR 7193, F- 75005 Paris, France
   Department of Earth Sciences, Utrecht University, PO box 80.021, 3508 TA, Utrecht, The Netherlands
   Université Toulouse 3, Paul Sabatier, OMP-GET, 14 Avenue Edouard Belin, 31400-F, Toulouse, France
   GEOPS, Univ. Paris-Sud, CNRS, Université Paris-Saclay, 91405 Orsay, France
C2 ENS, FRANCE
   UNIV SORBONNE, FRANCE
   UNIV UTRECHT, NETHERLANDS
   UNIV TOULOUSE, FRANCE
   UNIV PARIS SUD, FRANCE
IF 3.449
TC 9
UR https://archimer.ifremer.fr/doc/00599/71129/101649.pdf
LA English
DT Article
CR CARLMAG 2019
   OWEN-2
   VARUNA
BO Beautemps-Beaupré
DE ;Transform boundaries;Arabian Sea;Masirah ophiolites
AB The Arabian Sea in the NW Indian Ocean is a place where two major transform boundaries are currently active : the Owen Fracture Zone between India and Arabia and the Owen Transform between India and Somalia. These transform systems result from the fragmentation of the India-Africa Transform boundary, which initiated about 90 Myrs ago, when the India-Seychelles block separated from Madagascar to move towards Eurasia. Therefore, the geological record of the Arabian Sea makes it possible to investigate the sensitivity of a transform system to several major geodynamic changes. Here we focus on the evolution of the India-Africa transform system during the ∼47-90 Ma interval. We identify the Late Cretaceous (∼90-65 Ma) transform plate boundary along Chain Ridge, in the North Somali Basin. From 65 to ∼42-47 Ma, the India-Africa transform is identified at the Chain Fracture Zone, which crossed both the Owen Basin and the North East Oman margin. Finally, the transform system jumped to its present-day location in the vicinity of the Owen Ridge. These shifts of the India-Africa boundary with time provide a consistent paleogeographic framework for the emplacement of the Masirah Ophiolitic Belt, which constitutes a case of ophiolite emplaced along a transform boundary. The successive locations of the India-Africa boundary further highlight the origin of the Owen Basin lithosphere incoming into the Makran subduction zone. 
PY 2020
PD APR
SO Journal Of Asian Earth Sciences
SN 1367-9120
PU Elsevier BV
VL 191
UT 000519655600011
DI 10.1016/j.jseaes.2019.104225
ID 71129
ER

EF