ZONAL DIVISION OF EOCENE DEPOSITS BY SMALL FORAMINIFERA FROM BOREHOLE MATERIALS OF «LANDJAR 2»

Authors

  • F. A. Hayrapetyan Institute of Geological Sciences of the NAS of RA, Armenia

DOI:

https://doi.org/10.46991/PYSU:C/2009.43.2.028

Keywords:

Langjar 2, Eocene deposits

Abstract

The present study is focused on the zonal distribution of Eocene deposits from the borehole materials of «Langjar 2» (South-East Armenia). Studying the area and analyzing 35 plankton Foraminifera species several zones have been revealed. Morozovella aragonesis and Acarinina pentacamerata (Lower Eocene), Acarinina bullbrooki, Ac. rotundimarginata, Hantkenina alabamensis, Orb. beckmanii and Truncorotaloides rohri (Middle Eocene), Globigerapsis semiinvoluta and Globorotalia cocoaensis (Upper Eocene). By benthonic Foraminifera the following zones have been revealed: Heterolepa eocaena, Uvigerina costellata-Cibicidoides landjaricum (Middle Eocene) and Planulina costata (Upper Eocene). According to our data the last zone is divided into two subzones – Cibicidoides truncatus and Heterolepa pygmea.

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Published

2009-07-13

How to Cite

Hayrapetyan, F. A. (2009). ZONAL DIVISION OF EOCENE DEPOSITS BY SMALL FORAMINIFERA FROM BOREHOLE MATERIALS OF «LANDJAR 2». Proceedings of the YSU C: Geological and Geographical Sciences, 43(2 (219), 28–36. https://doi.org/10.46991/PYSU:C/2009.43.2.028

Issue

Vol. 43 No. 2 (219) (2009)

Section

Geology

License

Copyright (c) 2009 Proceedings of the YSU

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