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Subsidence of southern part of erstwhile Dhanushkodi township, Tamil Nadu -- evidences from bathymetry, side scan and underwater videography.

Authors :
Vaz, G. G.
Hariprasad, M.
Rao, B. R.
Rao, V. Subba
Source :
Current Science (00113891). 3/10/2007, Vol. 92 Issue 5, p671-675. 5p. 1 Color Photograph, 1 Black and White Photograph, 1 Diagram, 3 Maps.
Publication Year :
2007

Abstract

The southern part of erstwhile Dhanushkodi township, Tamil Nadu, experienced subsidence and submergence during AD 1948-49. Shallow bathymetric and side-scan surveys together with sampling and underwater videography confirm the extent and quantum of subsidence. The studies reveal that a vertical tectonic movement (fault) parallel to the coastline with a displacement of ∼5 m led to the subsidence of the southern part of the township. This fault movement has occurred 57 years ago and hence could be the latest neo-tectonic movement ever recorded along the east coast of India. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
00113891
Volume :
92
Issue :
5
Database :
Academic Search Index
Journal :
Current Science (00113891)
Publication Type :
Academic Journal
Accession number :
24895780