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

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Living and Dead Foraminiferida in the Araniar River Estuary, Chingleput District, Tamil Nadu State


Affiliations
1 Department of Geology, S. V. University College, Tirupati-517 502, India
2 Department of Geology, Sri Venkateswara University Postgraduate Extension Centre, Cuddapah-516004, India
     

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The living and dead foraminiferida in the substrate samples collected from 14 Stations in the Araniar River estuary along the east coast of India from June 1978 to May 1979 have been studied quantitatively. The average salinity ranges from 23.5 to 38.5% and it is considered to be the principal controlling ecologic factor that limits the distribution and abundance of foraminiferida. The pattern of distribution of foraminiferida is also explained in terms of deposition of fluviatile sediments in the estuary. The abundance and living/dead ratios of foraminiferida tests have been compared with those recorded in the nearby Dugarazupatnam and Pennar estuaries.
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  • Living and Dead Foraminiferida in the Araniar River Estuary, Chingleput District, Tamil Nadu State

Abstract Views: 146  |  PDF Views: 2

Authors

A. N. Reddy
Department of Geology, S. V. University College, Tirupati-517 502, India
K. R. Reddy
Department of Geology, S. V. University College, Tirupati-517 502, India
R. Jagadiswara Rao
Department of Geology, Sri Venkateswara University Postgraduate Extension Centre, Cuddapah-516004, India

Abstract


The living and dead foraminiferida in the substrate samples collected from 14 Stations in the Araniar River estuary along the east coast of India from June 1978 to May 1979 have been studied quantitatively. The average salinity ranges from 23.5 to 38.5% and it is considered to be the principal controlling ecologic factor that limits the distribution and abundance of foraminiferida. The pattern of distribution of foraminiferida is also explained in terms of deposition of fluviatile sediments in the estuary. The abundance and living/dead ratios of foraminiferida tests have been compared with those recorded in the nearby Dugarazupatnam and Pennar estuaries.