Rheology of Indian continental crust and upper mantle |
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Authors: | A Manglik R N Singh |
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Institution: | (1) National Geophysical Research Institute, 500 007 Hyderabad, India |
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Abstract: | A rheological model of the Indian shield has been constructed using the thermal structure derived from available surface heat
flow and heat generation data and the flow properties of characteristic minerals and rocks like quartz, diabase and olivine
which respectively represent the upper crust, lower crust and upper mantle. Lateral variations in the thicknesses of the brittle
and ductile crust and of the brittle upper mantle have thus been obtained for different tectonic environments. Implications
of these results to interpretation of the seismic structure of the Indian shield have been pointed out. |
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Keywords: | Rheology brittle ductile crust upper mantle |
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