Journal of Geological Society of India (Online archive from Vol 1 to Vol 78)

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Mapping of Shear Zones in the Western Ghats, Southwestern Part of Dharwar Craton


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1 National Geophysical Research Institute (Council of Scientific and Industrial Research), Uppal Road, Hyderabad - 500 007, India
     

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A new map of structural architecture has been compiled involving modern mapping techniques at the craton-mobile belt interface in the Western Ghats around the Coorg granulite massif revealing the occurrence of important shear zones. The shear zones are linked to the Moyar-Bhavani Shear Zone in Southern India. The nature, geometry and kinematics of the shear zones in the granulitic crust and the cratonic part are distinctly different.

Keywords

Dharwar Craton, Shear Zones, Coorg Massif, Western Ghats.
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  • Mapping of Shear Zones in the Western Ghats, Southwestern Part of Dharwar Craton

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Authors

T. R. K. Chetty
National Geophysical Research Institute (Council of Scientific and Industrial Research), Uppal Road, Hyderabad - 500 007, India
D. P. Mohanty
National Geophysical Research Institute (Council of Scientific and Industrial Research), Uppal Road, Hyderabad - 500 007, India
T. Yellappa
National Geophysical Research Institute (Council of Scientific and Industrial Research), Uppal Road, Hyderabad - 500 007, India

Abstract


A new map of structural architecture has been compiled involving modern mapping techniques at the craton-mobile belt interface in the Western Ghats around the Coorg granulite massif revealing the occurrence of important shear zones. The shear zones are linked to the Moyar-Bhavani Shear Zone in Southern India. The nature, geometry and kinematics of the shear zones in the granulitic crust and the cratonic part are distinctly different.

Keywords


Dharwar Craton, Shear Zones, Coorg Massif, Western Ghats.

References