Time-Relation of Poly Metamorphic Recrystallisation in the Precambrian Rocks of the Sonapet Valley, Eastern India

Authors

  • D. S. Bhattacharyya
     Department of Geology and Geophysics, Indian Institute of Technology, Kharagpur

Abstract

Three phases of high grade metamorphism are recognised here. These are dated with reference to the four phases of deformation recognised in this area. It is concluded that the index minerals are progressive in time and space; the metamorphisms are also synkinematic to post-kinematic. Zonal patterns are analysed and it is seen that these show synchronous fold shapes. Folding of the geoisothermals seems to be the best explanation for the metamorphic episodes.

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Issue

Volume 14, Issue 3, September 1973

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Articles

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Published

1973-09-01

How to Cite

Bhattacharyya, D. S. (1973). Time-Relation of Poly Metamorphic Recrystallisation in the Precambrian Rocks of the Sonapet Valley, Eastern India. Journal of Geological Society of India, 14(3), 282–288. Retrieved from https://geosocindia.com/index.php/jgsi/article/view/61841

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