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The terrace like feature in the mid-continental slope region off Trivandrum and a plausible model for India-Madagascar juxtaposition in immediate pre-drift scenario

IR@NIO: CSIR-National Institute Of Oceanography, Goa

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Creator Yatheesh, V.
Bhattacharya, G.C.
Mahender, K.
 
Date 2006-07-14T12:05:09Z
2006-07-14T12:05:09Z
2006
 
Identifier Gondwana Research, vol.179(1-2), 179-185pp.
http://drs.nio.org/drs/handle/2264/217
 
Description Bathymetry of the southwestern continental margin of India reveal the presence of an anomalous terrace like feature in the mid continental slope region off Trivandrum. The genesis of this terrace of large areal extent (~9000 sq. km.) is yet to be established. Based on exercises with several existing paleogeographic reconstruction models and updated compilation of identified offshore tectonic elements, this study attempts to identify a plausible model of India–Madagascar juxtaposition in immediate pre-drift scenario, which provides idea about genesis of this terrace. It is inferred that the terrace off Trivandrum and an anomalous bathymetric notch located in the northern Madagascar Ridge are conjugate features related to India-Madagascar separation and the rifted and sheared segments of the pre-drift plate boundary have shaped their outlines. The drifting of India from Madagascar is suggested to have commenced at about 86.5 Ma.
 
Format 391871 bytes
application/pdf
 
Language en
 
Publisher Elsevier
 
Rights An edited version of this paper was published by Elsevier. Copyright [2006] Elsevier
 
Subject Madagascar Ridge
India-Madagascar juxtaposition
Paleogeographic reconstruction
shear zones
 
Title The terrace like feature in the mid-continental slope region off Trivandrum and a plausible model for India-Madagascar juxtaposition in immediate pre-drift scenario
 
Type Article