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Title Rift basins in western margin of India and their hydrocarbon prospects with special reference to Kutch basin
Creator/Author Biswas, S.K.
Publication Date1982 Oct 01
OSTI IdentifierOSTI ID: 6472264
Other Number(s)CODEN: AAPGB
Resource TypeJournal Article
Resource RelationAm. Assoc. Pet. Geol., Bull. ; Vol/Issue: 66:10
Research OrgInst. of Petroleum Exploration, Dehra Dun, India
Subject020200 -- Petroleum-- Reserves, Geology, & Exploration; ;INDIA-- SEDIMENTARY BASINS;SEDIMENTARY BASINS-- PETROLEUM GEOLOGY; CARBONATE ROCKS;CONTINENTAL SHELF;GEOLOGIC HISTORY;GEOTHERMAL GRADIENTS;PETROLEUM DEPOSITS;TECTONICS
Related SubjectASIA;CONTINENTAL MARGIN;DEVELOPING COUNTRIES;GEOLOGIC DEPOSITS;GEOLOGIC STRUCTURES;GEOLOGY;MINERAL RESOURCES;RESOURCES;ROCKS;SEDIMENTARY ROCKS;TEMPERATURE GRADIENTS
Description/Abstract The western continental margin of India can be classed as a divergent or passive margin.^The western continental shelf is an extensive carbonate bank (Bombay offshore basin) passing into clastic sediments on the north and south.^Three craton-margin embayed basins-Kutch, Cambay, and Narmada- in the northern part of the shelf, are filled predominantly with clastic sediments.^These basins occupy grabens bounded by faults diverging seaward.^The grabens were formed by three rift systems along major Precambrian tectonic trends.^The rifting developed sequentially from north to south around the Saurashtra horst.^Kutch basin was formed in the Early Jurassic, followed by Cambay basin in Early Cretaceous time, and the Narmada in the Late Cretaceous.^It appears that these rifting events occurred at successive stages during the northward migration of the Indian plate after its break from Gondwanaland in Late Triassic or Early Jurassic.^It is inferred that these rift basins opened up successively as a result of the counterclockwise drift of the Indian craton.^Bombay offshore and Cambay are two major oil-producing basins in the western margin.^These basins are characterized by high geothermal gradients attributed to the shallowness of the mantle in this region.^Oil has not been found in KUtch basin, which is mainly an onshore Mesozoic basin.^The basin basin depocenter shifted offshore at the northwestern part of the continental shelf where the shelf is wide.
Country of PublicationUnited States
LanguageEnglish
FormatPages: 1497-1513
System Entry Date2001 May 13

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