Palaeocene-Eocene Boundary in Cauvery Basin

Authors

  • Madan Mohan
     Institute of Petroleum Exploration, Oil and Natural Gas Commission, Dehradun
  • P. Kumar
     Institute of Petroleum Exploration, Oil and Natural Gas Commission, Dehradun
  • V. Narayanan
     Institute of Petroleum Exploration, Oil and Natural Gas Commission, Dehradun

Abstract

The authors favour the placement of Palaeocene-Eocene boundary at the Pseudohastigerina wilcoxensis datum. In the Cauvery basin subsurface, seemingly continuous late Palaeocene-Early Eocene successions are known only in the basinal depressions, which have been exemplified by the Chidambaram well data. Unless the sequences are well represented by cores, problems arise in delineation of Palaeocene-Eocene boundary in the flanks of ridges/highs in Cauvery basin as the index Palaeocene planktonic foraminifera are sometimes found reworked in the Eocene zones.

The occurrence of Nummulites, whose earliest occurrence is lately being attributed to the basal Eocene in the European basins, in the Cauvery basin Palaeocene corresponding to the Globorotalia velascoensis and Globorotalia pseudomenardii Zones - has been stressed. Further research is necessary in order to establish the evolutionary appearance level of these camerinids in the Indian subcontinent.

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Issue

Volume 18, Issue 8, August 1977

Section

Oil Exploration in the East Coast of India: Stratigraphic and Palaeontological Aspects

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Published

1977-08-01

How to Cite

Mohan, M., Kumar, P., & Narayanan, V. (1977). Palaeocene-Eocene Boundary in Cauvery Basin. Journal of Geological Society of India, 18(8), 401–411. Retrieved from https://www.geosocindia.com/index.php/jgsi/article/view/63938

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