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7th
Middle
East
Geosciences Conference and Exhibition
Manama, Bahrain
March 27-29, 2006
Middle
East
Since Mesozoic
1 Laboratoire de Tectonique, UMR 7072 CNRS-University P. & M. Curie, 4 place Jussieu, case 129, Paris,
75252, France, phone: 00 33 1 44 27 39 41, fax: 00 33 44 27 50 85, [email protected]
2 Laboratoire de Tectonique, UMR 7072 CNRS - Université P; & M. Curie, 4 place Jussieu, case 129, Paris, 75252, France
3 UMR 7072 - Université P. & M. Curie, Paris, France
4 UMR 7072 CNRS - Université P. & M. Curie, Paris, France
5 University of Milano, Milano, Italy
A set of 14 palinspastic tectonic maps is developed for the
Middle
East
, including the South Caspian, Caucasian and Black
Sea domains. These reconstructions are produced by the
Middle
East
Basins Evolution Programme (MEBE). Our objective
is establishing a model of tectonic evolution of the
Middle
East
since Triassic. The palinspastic maps are based on an up-todate
kinematics of the tethyan domain. These maps integrate the original results of the MEBE scientific teams working on
tectonics, sedimentology, stratigraphy, and basin modeling. In our reconstruction we precise the age and the main
characteristics of the major tectonic events (rifting, marginal basin opening, basin subsidence, basin inversion, major
collisions and orogenies, main transcurrent faults, ...) that happened in the
Middle
East
since the Triassic Cimmerian
orogeny. We distinguish two major periods: before and during the collision of Africa-Arabia with the Eurasian margin. During
the first period that kept on from
Middle
Triassic to Paleogene an active and a passive margin respectively developed North
and South of the Tethyan Ocean. Mesozoic extensional tectonics mainly developed in the active Eurasian margin and in the
Arabian platform, only interrupted by minor inversion and the Late Cretaceous obduction. The early stage of the Arabia -
Eurasia collision appeared in Eocene from Bulgaria to the West, to Zagros and Caspian-Caucasus domain to the
East
. After
the complete closure of the remnant Tethyan oceanic domain, the orogenies related to the continent-continent collision
mainly developed during Neogene. They constitute the almost continuous orogenic belt that extends from Central
Mediterranean to Iran through Turkey and Caucasus.