Early Cenozoic rapid flight enigma of the Indian subcontinent resolved: Roles of topographic top loading and subcrustal erosion

Intrinsic magmatic processes are considered as critical operators of plate movements. Here we demonstrate the role of extrinsic processes consequent to intrinsic processes as a catalyst for anomalous rapid plate movement. The rapid and accelerated flight of the Indian subcontinent since Deccan volca...

Full description

Main Authors: Ramkumar, M., Menier, D., Mathew, M., Santosh, M., Siddiqui, N.A.
Format: Article
Institution: Universiti Teknologi Petronas
Record Id / ISBN-0: utp-eprints.19871 /
Published: Elsevier B.V. 2017
Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85006371526&doi=10.1016%2fj.gsf.2016.05.004&partnerID=40&md5=32050772411166050d605aa63019741f
http://eprints.utp.edu.my/19871/
Tags: Add Tag
No Tags, Be the first to tag this record!
id utp-eprints.19871
recordtype eprints
spelling utp-eprints.198712018-04-22T13:12:15Z Early Cenozoic rapid flight enigma of the Indian subcontinent resolved: Roles of topographic top loading and subcrustal erosion Ramkumar, M. Menier, D. Mathew, M. Santosh, M. Siddiqui, N.A. Intrinsic magmatic processes are considered as critical operators of plate movements. Here we demonstrate the role of extrinsic processes consequent to intrinsic processes as a catalyst for anomalous rapid plate movement. The rapid and accelerated flight of the Indian subcontinent since Deccan volcanism until its collision with Eurasia remains as one of the geological conundrums. Data on seismic tomography, peninsular geomorphology and inferences on continuum of subcrustal structures are utilized to address this enigma. We propose geomorphic isostasy as the mechanism that has driven this fastest drift ever recorded in geological history. It was initiated by sudden instability after the Deccan volcanism and resultant extensive accumulation of lava pile over continental lithosphere of northern India, northern-eastern tilt due to crustal thickness heterogeneity and subcrustal thermal stratification. The drift was sustained by Carlsberg and Central Indian ridge-push until collision and sediment top loading at northeast thenceforth. These inferences and geomorphic isostasy as a catalytic mechanism necessitate variability of drift rates as integral inputs for any continental scale modeling. © 2016 China University of Geosciences (Beijing) and Peking University Elsevier B.V. 2017 Article PeerReviewed https://www.scopus.com/inward/record.uri?eid=2-s2.0-85006371526&doi=10.1016%2fj.gsf.2016.05.004&partnerID=40&md5=32050772411166050d605aa63019741f Ramkumar, M. and Menier, D. and Mathew, M. and Santosh, M. and Siddiqui, N.A. (2017) Early Cenozoic rapid flight enigma of the Indian subcontinent resolved: Roles of topographic top loading and subcrustal erosion. Geoscience Frontiers, 8 (1). pp. 15-23. http://eprints.utp.edu.my/19871/
institution Universiti Teknologi Petronas
collection UTP Institutional Repository
description Intrinsic magmatic processes are considered as critical operators of plate movements. Here we demonstrate the role of extrinsic processes consequent to intrinsic processes as a catalyst for anomalous rapid plate movement. The rapid and accelerated flight of the Indian subcontinent since Deccan volcanism until its collision with Eurasia remains as one of the geological conundrums. Data on seismic tomography, peninsular geomorphology and inferences on continuum of subcrustal structures are utilized to address this enigma. We propose geomorphic isostasy as the mechanism that has driven this fastest drift ever recorded in geological history. It was initiated by sudden instability after the Deccan volcanism and resultant extensive accumulation of lava pile over continental lithosphere of northern India, northern-eastern tilt due to crustal thickness heterogeneity and subcrustal thermal stratification. The drift was sustained by Carlsberg and Central Indian ridge-push until collision and sediment top loading at northeast thenceforth. These inferences and geomorphic isostasy as a catalytic mechanism necessitate variability of drift rates as integral inputs for any continental scale modeling. © 2016 China University of Geosciences (Beijing) and Peking University
format Article
author Ramkumar, M.
Menier, D.
Mathew, M.
Santosh, M.
Siddiqui, N.A.
spellingShingle Ramkumar, M.
Menier, D.
Mathew, M.
Santosh, M.
Siddiqui, N.A.
Early Cenozoic rapid flight enigma of the Indian subcontinent resolved: Roles of topographic top loading and subcrustal erosion
author_sort Ramkumar, M.
title Early Cenozoic rapid flight enigma of the Indian subcontinent resolved: Roles of topographic top loading and subcrustal erosion
title_short Early Cenozoic rapid flight enigma of the Indian subcontinent resolved: Roles of topographic top loading and subcrustal erosion
title_full Early Cenozoic rapid flight enigma of the Indian subcontinent resolved: Roles of topographic top loading and subcrustal erosion
title_fullStr Early Cenozoic rapid flight enigma of the Indian subcontinent resolved: Roles of topographic top loading and subcrustal erosion
title_full_unstemmed Early Cenozoic rapid flight enigma of the Indian subcontinent resolved: Roles of topographic top loading and subcrustal erosion
title_sort early cenozoic rapid flight enigma of the indian subcontinent resolved: roles of topographic top loading and subcrustal erosion
publisher Elsevier B.V.
publishDate 2017
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85006371526&doi=10.1016%2fj.gsf.2016.05.004&partnerID=40&md5=32050772411166050d605aa63019741f
http://eprints.utp.edu.my/19871/
_version_ 1741196277732868096
score 11.62408

Similar Items