Kinematics of oceanic thrusting in the Oman ophiolite: model of plate convergence

Details Kinematics of oceanic thrusting in the Oman ophiolite: model of plate convergence Kinematics of oceanic thrusting in the Oman ophiolite: model of plate convergence

Oct 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985e%26psl..75..215b&link_type=abstract

Earth and Planetary Science Letters, Volume 75, Issue 2-3, p. 215-222.

Computer Science

28

Scientific paper

Kinematics of early thrusting of Oman ophiolites is deduced using analysis of homogeneous deformation in their metamorphic soles, and is constrained by new K-Ar ages. A model of decollement from a Tethyan ridge system is proposed for the 100-95 Ma period of time. The local geometry of the ridge system controls the thrust direction; a NE toward SW shortening direction of the lithosphere is deduced from the bulk vectorial composition of the senses of shear recorded in the high-temperature thrust soles. A uniform NE toward SW transport direction is also recorded in the lower-grade rocks of the thrust soles, and in the high-pressure/low-temperature metamorphic rocks of the Saih Hatat, for the 90-80 Ma period of time. This last convergence direction is that of Africa with respect to Eurasia deduced from magnetic anomalies study in the Atlantic Ocean.

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