Chhotanagpur granite gneiss in relation to the schistose rocks around Murhu,Ranchi district,Bihar: a structural approach |
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Authors: | D S Bhattacharyya Anjan Ghosal V Ravi Kant |
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Institution: | (1) Department of Geology and Geophysics, Indian Institute of Technology, 721302 Kharagpur, India |
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Abstract: | Structural analysis of the Chhotanagpur gneiss and the adjoining schistose rocks of the Singhbhum Group indicates perfect
conformity in their structures on macroscopic, mesoscopic and microscopic scales. This precludes the possibility of the gneissic
rocks having intruded into the deformed and metamorphozed schistose rocks. The observed features can be best explained by
considering the gneissic rocks as the basement and the schistose rocks as the cover, both deformed and metamorphozed together.
However, this does not exclude the possibility of the gneissic rocks being reactivated and intruding elsewhere. |
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Keywords: | Basement cover rocks pertrofabrices superposed folds Chhotanagpur Granite Gneiss |
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