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Authors
Affiliations
1 Department of Geology, Aligarh Muslim University, Aligarh 202002, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 50, No 4 (1997), Pagination: 481-489
Abstract
The Cretaceous sedimentary sequence of Narmada basin comprise a lower clastic formation (Nimar Sandstone) and an upper carbonate sequence (Karondia Limestone). The depositional model of limestones was reconstructed by identifying 8 microfacies which were regrouped into 5 facies associations. The carbonate sequence of the study area was interpreted to be deposited on a ramp without a striking break in the slope of the ramp and where shelf margin was not developed. The vertical arrangement of facies of Karondia Limestone forms a shallowing upward sequence. It shows much lateral and vertical variation which can be attributed to deposition on a platform dotted by a mosaic of exposed banks or island separated by subtidal areas with the whole complex shifting both laterally and vertically in response to hydrodynamic conditions through time.
Keywords
Sedimentology, Cretaceous, Limestone, Narmada Basin.
