On the origin of hydrocarbons reservoired in Bombay High: stable isotopic studies of natural gases

Banerjie, V.; Mittal, A.K.; Gupta, Anita; Balyan, A.K.; Chaudhary, D.R.

doi:10.1016/0743-9547(91)90046-z

Cited by 4 publications

(1 citation statement)

References 3 publications

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“…This depression is the extension of Narmada-Tapti rift zone towards west. The Surat depression consists of 8 km thick Tertiary, fine-grained, clastic sediments and is the source rock for the Bombay High (Biswas and Singh 1988;Banerjee et al 1991).…”

Section: Geology and Tectonicsmentioning

confidence: 99%

Frequency characteristics of geomagnetic induction anomalies in Saurashtra region

Kumar

Rao

et al. 2017

J Earth Syst Sci

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Magnetovariational studies were carried out along four different EW profiles in Saurashtra region in different phases, during January 2007-March 2012. Transient geomagnetic field variations (X, Y horizontal field and Z vertical field components) recorded along these profiles are analyzed to infer the electrical conductivity distribution of the region. The vertical field transfer functions which depict the characteristics of electrical conductivity distribution are presented in the form of induction arrows. From the spatial distribution of these arrows, it is inferred that the sediments filling the offshore basins have more conductivity than those basins in Saurashtra region. Z /H pseudo sections along the four profiles in conjunction with tectonics and other geophysical methods permit to infer that the conductivity anomaly in the eastern part of the profiles is associated with the crustal/lithosphere thinning. The possible cause for these anomalies may be explained in terms of partial melts associated with mafic intrusions, related to Deccan and pre-Deccan volcanism. High resistive block related to underplating mantle material has been reflected in 1D models of long period magnetotelluric data and its thickness reduces from west to east. Lithosphere-asthenosphere boundary varies from 80 to 100 km.

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Section: Geology and Tectonicsmentioning

confidence: 99%