Seismic Signature of Sub-Trappean Gondwana Basin in Central India
2002; Elsevier BV; Volume: 5; Issue: 3 Linguagem: Inglês
10.1016/s1342-937x(05)70633-x
ISSN1878-0571
AutoresD.M. Mall, Dipankar Sarkar, P. R. Reddy,
Tópico(s)earthquake and tectonic studies
ResumoThe digitized and trace normalized record sections of original analog Deep Seismic Sounding (DSS) data collected along the Multai-Pulgaon profile, have been re-interpreted to find basement and intra-basement structure in the area between the Satpura basin and the Pranhita-Godavari Gondwana graben in Central India. It is found that the data are best satisfied by a model with a low velocity zone in between the Deccan Traps and the basement. The study delineates a basement fault that could be associated with the known Gavaligarh-Salbardi lineament. Low velocity sediments (Vp = 3.7 km/s) delineated from the present study could be Gondwana sediments, which have been reported in surrounding areas. This finding indicates the possible extension of Gondwana formations of the Pranhita-Godavari graben to the Satputra basin through the Wardha valley.
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