Discrimination of tectonic dynamism, quiescence and third order relative sea level cycles of the Cauvery Basin, South India

Application of integrated stratigraphic modeling of sedimentary basins with the help of sequence and chemostratigraphic methods for improved understanding on the relative roles of depositional pattern and history of a Barremian-Danian stratigraphic record of the Cauvery Basin, India was attempted. Through enumeration of facies characteristics, tectonic structures and geochemical characteristics of the sedimentary rocks the use of geochemical signatures in distinguishing the relative roles of major factors has been evaluated. The results indicate that the geochemical signatures of the sedimentary rocks accurately record the prevalent geological processes and an ability to distinguish them through employing stratigraphic variations of compositional values and discrimination diagrams help in understanding the basinal history better. In addition, predomination of relative sea level fluctuations and active nature of tectonic movements during few time slices, which in turn was overwhelmed by sea level fluctuations are also inferred

Eustasy, High-Frequency Sea-Level Cycles and Habitat Heterogeneity

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Coastal Zone Management

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Identification, categorisation and protection of geoheritage sites of the cauvery basin, South India, for educational, research and geotourism purposes

International audienceGeoheritage sites are those sites identified and protected for their value in geoscience and aesthetics. Worldover, serious efforts are being made to identify, categorise and to protect such sites. A more or less complete stratigraphic record of Barremian-Danian along with diverse fossil, sedimentary structural and other features occur in the region bound between Vellar and Coleroon in South India. With the pace of rapid urbanisation developments and the mining activities in the vicinity, it is of public knowledge that the geologically important, unique archives of the past are being unscrupulously plundered and unless systematic documentation and sincere efforts of protection are initiated, these geological treasure troves will be lost forever. Given cognizance to all these, propose identification, protection and establishment of field museum sites under six categories, namely, sites of fossil locations, sites of natural exposures, sites of stratigraphic importance, sites of unique facies types, sites of excellent traverses and sites of newly excavated mine and other sections. We also propose to establish an online catalogue of important locales according to these six categories, creation of Web-GIS enabled interactive and informative kiosk containing basic information on these sites and making this resource an open-source model. Finally, this study suggests that the proposed field-museum encompassing the six-category sites may be named after Dr. M.S. Krishnan, the illustrious geologist of Geological Survey of India

Major, trace and rare earth elemental geochemistry of Santonian–Campanian onland‐offshore transition in a Gilbert‐type deltaic setting, Cauvery Basin, southern India

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Opportunistic colonizers in the Kallankurichchi Formation, Cauvery Basin, South India: Implications on Maastrichtian environmental stress

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