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

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    J_Coast_Res_3_521.pdf (1.033Mb)
    Date
    1987
    Author
    Bhattacharya, G.C.
    Almeida, F.
    Vora, K.H.
    Siddiquie, H.N.
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    Abstract
    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
    URI
    http://drs.nio.org/drs/handle/2264/6118
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