CAMBAY BASIN GEOLOGY PDF

Dashura There was a regional southward tilt of the entire geilogy basin during Late Eocene and it is marked by a regional marine transgression extending far to the north upto Sanchor basin. The Early Tertiary sediments ranging in age from Paleocene to Early Eocene represent syn-rift stage of deposition that was controlled by faults and basement highs in an expanding rift system. The same is true for the Tarapur Shale. From north to south, the blocks are:. These sediments are characterised by gsology assortment of illsorted, high energy trap derived materials.

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The basin is a lacustrine failed rift. Biostratigraphic data, however, indicate it was intermittently connected to marine waters via either the Cambay Basin, the Kutch Basin, or across the Devikot high, temporarily forming a large, shallow estuary. At least six major tectono-stratigraphic events have caused relative lake level falls and translation of clastic reservoirs basinward. Prolific source rocks occur from the Mesozoic through Eocene strata.

Tectonically, the basin is divided into a northern and a southern province. The north province continues to undergo inversion and erosion, and has not been buried as deeply as the south.

Kinetics of the major source facies in the north are substantially different from those in the south, as well as the present-day and paleo-heat flow. These differences have made the northern part of the basin predominantly an oil province and the southern part a mixed oil and gas province. The prolific Paleocene Fatehgarh Formation contains the bulk of the 7. GeoRef Subject You do not currently have access to this article. You could not be signed in.

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