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Study of planktonic morphotype of the Abderaz Formation at type section, Iran

Meysam Shafiee Ardestani¹

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1. Department of Geology, Faculty of Science, University of Tehran, Tehran, Iran

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Document Type:

Manuscript

Date:

Received 28 April 2009 00:25 UTC; Posted 01 May 2009

Subjects:

Ecology, Earth & Environment, Evolutionary Biology

Tags:

• Abderaz
• morphotype
• Formation
• foraminifera

Abstract:

Abderaz Formation at its type section with an age of Turonian-Early Campanian and a thickness of 300 m contains light grey shale and marl. The study of the planktonic foraminifera in isolated form led to differentiate three morphotype groups. The first group is characterized by trochospiral tests usually indicate shallow waters, the second group contains forms with strong ornamentations and the primary keels representing mid waters and finally compact trochospiral tests with keels known as deep water indices are included in the third group. Studies on the morphotypes showed a regressive cycle for Abderaz Formation.

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This document is licensed to the public under the Creative Commons Attribution 3.0 License

How to cite this document:

Shafiee Ardestani, Meysam. Study of planktonic morphotype of the Abderaz Formation at type section, Iran. Available from Nature Precedings <http://dx.doi.org/10.1038/npre.2009.3189.1> (2009)

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