Journal of Geological Society of India (Online archive from Vol 1 to Vol 78)

Pratap Singh ¹

Affiliations
1 Department of Geology, University of Lucknow, Lucknow, IN

Abstract

A rich assemblage of the larger foraminifera has been recorded for the first time from the Subathus of Beragua-Jangalgali Area, Jammu & Kashmir State. Eleven species of the larger foraminifera belonging to four genera represented by three families, have been studied and described in this paper. This foraminiferal assemblage suggests a Laki (Lower Eocene) age for these formations. The Subathus of the present area have been correlated with the other similar formations occurring in India. The micropalaeontological investigation of the area leads to the conclusion that the Subathus were deposited in neritic environment.

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Pratap Singh ¹, K. P. Vimal ²

Affiliations
1 Institute of Petroleum Exploration, Oil & Natural Gas Commission, Dehra Dun, IN
2 Department of Geology, University of Lucknow, Lucknow, IN

Abstract

The Eastern Coast Mudstone, exposed in Neill island, has yielded a rich assemblage of Late Miocene-Early Pliocene nannoplankton represented by the genera: Discoaster Tan Sin Hok, 1927 and Coccolithus Schwarz, 1894. The genus Discoaster constitutes about ninety-eight per cent of the assemblage and is represented by seventeen species including four new species and two new subspecies. A biostratigraphic zone named as Discoaster brouweri-Discoaster variabilis Assemblage-zone is recognized and correlated.

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