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IJMS Vol.37(4) [December 2008] >


Title: Crustal structure deduced from Gravity Modeling off Prydz Bay, East Antarctica
Authors: Singh, U. K.
Rajan, S.
Pandey, D. K.
Keywords: Prydz Bay
East Antarctica
Gravity modelling
Crustal Structure and Moho
Issue Date: Dec-2008
Publisher: CSIR
Abstract: A high resolution satellite gravity and bathymetry data along two N-S trending profiles have been interpreted using gravity forward modeling technique off Prydz Bay, East Antarctica. The crustal density model indicates the oceanic crust has a distinctive character with a smooth upper surface and the Moho depth varies from ~20 km shoreward to <12 km offshore. The Moho shallows from~19 km to 15 km in between 60 and 80 km along the pfofile A-A’. It occurs around 13 km further offshore. The present study infers the presence of ~8 km thick sediments on the southern side while in the north the thickness is about 2 km. The shelf break occurs between 120-130 km from the beginning of the profile A-A’ and between 40 and 70 km along the profile B-B’.
Page(s): 419-423
ISSN: 0379-5136
Source:IJMS Vol.37(4) [December 2008]

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