R8: Metamorphic rocks and tectonics

[R8P-06] Kinematics of the Mahanadi Shear Zone (MSZ) – part of a Y-shaped Freeway junction developed in the northern Eastern Ghats Belt, India

Shuvankar Karmakar², Gautam Ghosh², *Dyuti Prakash Sarkar¹, Sankar Bose² (1. Hiroshima Univ., 2. Presidency Univ.)

Keywords:Shear zone, Freeway junction, Kinematics, Progressive deformation

Understanding the development of opposite shear sense (oss) fabric in the Mahanadi Shear Zone (MSZ) provide important insights into the kinematics of crustal-scale shear zone. The present study is focused in a part of MSZ within the Proterozoic Eastern Ghats Belt, India. Our results suggest either a sub-simple shear regime or combined Couette-Poiseuille flow to be the controlling mechanism for the development of the oss fabric.