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Lahiri, Gopal
- Petrology of the Area East of Daltonganj, Palamau District, Bihar
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Authors
Gopal Lahiri
1,
Somnath Das
1
Affiliations
1 Department of Geology, Presidency College, Calcutta 700 073, IN
1 Department of Geology, Presidency College, Calcutta 700 073, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 25, No 8 (1984), Pagination: 490-504Abstract
The Precambrian terrain to the east and south east of Daltonganj (84°04' : 24°02'), shows considerable variation in composition and mineral assemblage within the metamorphites comprising: paragneisses with local migmatitic variants, metapelites, calcgranolites and amphibolites. There are evidences of polyphase deformation in the metamorphics. Within the metamorphics is emplaced a post-kinematic leucogranite body forming an oval outcrop in the central part of the area. The present investigation reveals a calcalkaline suite post-dating metamorphism and comprising diorite, granodiorite and tonalite. The leucogranite appears to be the culminating phase of this calcalkaline magmatism.- The Eleventh AAPG International Conference and Exhibition held in Vienna in September 1997 with the theme EAST MEETS WEST
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Authors
Affiliations
1 Participant, ONGC-Schlumberger Wireline, Research Centre, 7th Floor, VIII Core, Scope Complex, 7 Loclhi Road, New Delhi - 110 003, IN
1 Participant, ONGC-Schlumberger Wireline, Research Centre, 7th Floor, VIII Core, Scope Complex, 7 Loclhi Road, New Delhi - 110 003, IN