Magnetic susceptibility studies of the upper Albian-Danian sediments of Cauvery basin, south India
The Cauvery basin of the Indian Peninsular shield, formed during the fragmentation of the Gondwana Supercontinent, continued to evolve until the end of Neogene through rift, pull-apart, shelf sag and tilt processes. The basin witnessed many cycles of transgression, regression, erosion and deposition...
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| Veröffentlicht in: | Journal of the Geological Society of India 2016-03, Vol.87 (3), p.345-360 |
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| creator | Prasannakumar, V. Pratheesh, P. Vikas, C. Reghunath, Rajesh Prasanth, R. S. |
| description | The Cauvery basin of the Indian Peninsular shield, formed during the fragmentation of the Gondwana Supercontinent, continued to evolve until the end of Neogene through rift, pull-apart, shelf sag and tilt processes. The basin witnessed many cycles of transgression, regression, erosion and deposition. A more or less complete succession of upper Cretaceous–Paleocene sediments is exposed in the Ariyalur–Pondicherry depression of the basin. Anisotropy of magnetic susceptibility (AMS) technique is applied in an attempt to examine the depositional and eustatic conditions prevailed during the formation of these sedimentary sequences. AMS results point to the sedimentation history dominated by marked sea level changes with several phases of transgression and regression. The sedimentation occurred mainly in a shallow epicontinental sea which has been punctuated with terrigenous supply more often. Greater utility of magnetic fabrics is suggested as a tool to trace fluvial responses to tectonic and climatic changes. |
| doi_str_mv | 10.1007/s12594-016-0402-0 |
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AMS results point to the sedimentation history dominated by marked sea level changes with several phases of transgression and regression. The sedimentation occurred mainly in a shallow epicontinental sea which has been punctuated with terrigenous supply more often. 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| subjects | Anisotropy Basins Climate change Cretaceous Deposition Earth and Environmental Science Earth Sciences Geology Hydrogeology India Magnetic fields Magnetic permeability Magnetic susceptibility Neogene Paleocene Regression Research Article Sea level changes Sedimentation Sediments |
| title | Magnetic susceptibility studies of the upper Albian-Danian sediments of Cauvery basin, south India |
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