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Subsurface geology off Bombay with paleoclimatic inferences interpreted from shallow seismic profiles

DRS at CSIR-National Institute of Oceanography

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Title Subsurface geology off Bombay with paleoclimatic inferences interpreted from shallow seismic profiles
 
Creator Bhattacharya, G.C.
Almeida, F.
Vora, K.H.
Siddiquie, H.N.
 
Subject Geology and Geophysics
stratigraphy
seismology
seismic profiles
palaeoclimate
geology
ISW, India, Maharashtra, Bombay
 
Description High resolution seismic reflection profiles nearshore areas off Bombay provide information on subsurface geology and permit certain paleoclimatic inferences. Three sedimentary units overlie the acoustic basement: late Pleistocene consolidated sediment, early Holocene layered sediment (about 7 m thick) and Modern Clay (2.5-3 m thick). An unconformity probably due to subaerial erosion during the Pleistocene lowered sea level stand separates the consolidated sediments from the overlying layered sediments. The latter were probably deposited during the early Holocene marine transgression, when the precipitation pattern was different from the present (wetter). The Modern Clay conformably overlies them and was deposited during the last 600-700 years, during which the climate was similar to that of the present day. The bedrock appears to be fractured, tilted and eroded but no evidence was observed for any Holocene disturbance
 
Date 1995-06-14T10:01:29Z
2017-09-29T13:48:14Z
1995-06-14T10:01:29Z
2017-09-29T13:48:14Z
1987
 
Type Journal Article
 
Identifier Journal of Coastal Research, vol.3; 1987; 521-530
0749-0208
http://drs.nio.org/drs/handle/2264/6118
 
Language en
 
Relation J Coastal Res
SCI
 
Publisher Tirunelveli: JCSONLINE