TY  - JOUR
N1  - cited By 28
TI  - Early Cenozoic rapid flight enigma of the Indian subcontinent resolved: Roles of topographic top loading and subcrustal erosion
SP  - 15
AV  - none
EP  - 23
PB  - Elsevier B.V.
SN  - 16749871
N2  - 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
IS  - 1
ID  - scholars9407
KW  - arc-arc collision; Cenozoic; continental drift; geomorphology; isostasy; mantle plume; plate motion; topography; volcanism
KW  -  Deccan; India
A1  - Ramkumar, M.
A1  - Menier, D.
A1  - Mathew, M.
A1  - Santosh, M.
A1  - Siddiqui, N.A.
JF  - Geoscience Frontiers
UR  - https://www.scopus.com/inward/record.uri?eid=2-s2.0-85006371526&doi=10.1016%2fj.gsf.2016.05.004&partnerID=40&md5=32050772411166050d605aa63019741f
VL  - 8
Y1  - 2017///
ER  -