TY - JOUR

T1 - Growth of mountain belts in central Asia triggers a new collision zone in central India

AU - Koulakov, I.

AU - Gerya, T.

AU - Rastogi, B. K.

AU - Jakovlev, A.

AU - Medved, I.

AU - Kayal, J. R.

AU - El Khrepy, S.

AU - Al-Arifi, N.

N1 - Publisher Copyright: © 2018 The Author(s).

PY - 2018/7/16

Y1 - 2018/7/16

N2 - 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.

AB - 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.

KW - BENEATH

KW - CENOZOIC TECTONICS

KW - CONTINENTAL SUBDUCTION

KW - EARTHQUAKES

KW - LITHOSPHERIC STRUCTURE

KW - MANTLE

KW - NARMADA-SON LINEAMENT

KW - REGION

KW - TIEN-SHAN

KW - WAVE VELOCITY

UR - http://www.scopus.com/inward/record.url?scp=85050332718&partnerID=8YFLogxK

U2 - 10.1038/s41598-018-29105-2

DO - 10.1038/s41598-018-29105-2

M3 - Article

C2 - 30013125

AN - SCOPUS:85050332718

VL - 8

JO - Scientific Reports

JF - Scientific Reports

SN - 2045-2322

IS - 1

M1 - 10710

ER -