On The Age of the Pondicherry Formation of Madras South India

Authors

  • Bimal K. Samanta
     Department of Geology, University of Calcutta

Abstract

A sequence of three planktonic foraminiferal zones, the Globorotalia angulata Zone, Globorotalia velascoensis Zone and Globorotalia aequa Zone, is recognised in the Pondicherry Formation of South India. The G. angulata Zone includes the lower marlstone, the G. velascoensis Zone includes the algal limestone and the G. aequa Zone corresponds to the discocyclinid limestone and the upper marlstone. The lower zone is dated as Middle Palaeocene and the upper two as Upper Palaeocene. Thus, on planktonic foraminiferal evidence, the Pondicherry Formation is Middle to Upper Palaeocene in age.

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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

Samanta, B. K. (1973). On The Age of the Pondicherry Formation of Madras South India. Journal of Geological Society of India, 14(3), 289–295. Retrieved from https://geosocindia.com/index.php/jgsi/article/view/61842

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