Geochemical evidence for terrestrial source input for the oils of Cambay Basin

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Authors:Gupta, Vibha; Sharma, M. S.; Dutta, G. C.; Rao, S.
Author Affiliations:Primary:
KDM, Inst. Pet. Explor., Dehradun, India
Volume Title:Petroliferous basins of India
Volume Authors:Bhandari, L. L., editor; Venkatachala, B. S.; Mitra, P.; Kumar, Ruby K.; Srivastava, D. C.; Nanjunda Swamy, S.
Source:Petroliferous basins of India, edited by L. L. Bhandari, B. S. Venkatachala, P. Mitra, Ruby K. Kumar, D. C. Srivastava and S. Nanjunda Swamy. Petroleum Asia Journal, 7(1), p.89-91. Publisher: Himachal Times Group Publications, Dehra Dun, India
Publication Date:1984
Note:In English. 7 refs.; illus. incl. 1 table
Summary:Evidence based on a low asphaltene content, a dominance of Ni over V, a high pristane/phytane ratio and carbon isotope ratios of -30 to -32per mille indicates a dominantly terrestrial input for crude oils of the Cambay basin. A long up-dip migration and generation from a more mature source rock has been proposed for the Anklesvar formation oils. The variation observed in the ratios of different parameters for the oils of north Gujrat area are explained by post-accumulation alterations in the reservoirs. (Authors' abstract) [C.N.]
Subjects:Alteration; C-13/C-12; Carbon; Economic geology; Genesis; Geochemistry; Isotopes; Metals; Migration; Nickel; Petroleum; Source rocks; Stable isotopes; Terrestrial environment; Trace metals; Vanadium; Asia; Cambay Basin; India; Indian Peninsula; Anklesvar Formation; Gujrat; Kadi Formation; Kalol Formation; Maturation
Abstract Numbers:87M/2881
Record ID:1986016613
Copyright Information:GeoRef, Copyright 2019 American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom
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