Abstract
Several unusual strong earthquakes occurred in central India along the Narmada-Son Lineament (NSL) zone, far from active plate boundaries. To understand the role of collisional processes in the origin of this seismicity, we develop a numerical thermomechanical model of shortening between the Indian Plate and Asia. We show that at the final stage of collision, the shortening rate of the high mountain areas slows. The continuing convergence of India and Asia triggers the initiation of a new collision zone in continental part of India. Various geological and geophysical observations indicate that the NSL is a weakest zone with northward thrusting of the thinner central Indian lithosphere underneath the thicker northern part of the Indian Plate. We hypothesize that the NSL was reactivated during the final stage of the India Asia convergence and it will possibly form a new mountain belt within the Indian continent.
Original language | English |
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Article number | 10710 |
Pages (from-to) | 10710 |
Number of pages | 8 |
Journal | Scientific Reports |
Volume | 8 |
Issue number | 1 |
DOIs | |
Publication status | Published - 16 Jul 2018 |
Keywords
- BENEATH
- CENOZOIC TECTONICS
- CONTINENTAL SUBDUCTION
- EARTHQUAKES
- LITHOSPHERIC STRUCTURE
- MANTLE
- NARMADA-SON LINEAMENT
- REGION
- TIEN-SHAN
- WAVE VELOCITY