Open Journal of Geology, ( ISI ), Volume (4), No (11), Year (2014-4) , Pages (571-581)

Title : ( Biostratigraphy and Paleoecological Study of Pabdeh Formation in Interior Fars, Zagros Basin, Iran )

Authors: Fatemeh Hadavi , Manooseh Parvin khavari khorassani , Ebrahim Ghasemi - Nejad , Sayyed Reza Moussavi Harami ,

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Abstract

The Zagros basin, which trends NW-SE, is covered by a sea during the Paleogene, resulting in deposition of the Pabdeh Formation in the deeper parts of the basin. The thickness of the Pabdeh Formation in Tang-e-Abolhayat is about 221 m and it consists of purple shale at the base, gray shale, marl and marly limestone with a few horizons of nodular limestone toward the top. Seventytwo samples were collected and processed for nannofossil studies. Based on the identified nannofossil zones the age of the formation in Tang-e-Abolhayat is Late Paleocene-Late Oligocene (NP9- NP24). Changes in the abundance of different genera over the studied interval have resulted in identification of three ecozones: Ecozone 1 is characterized by oligotrophic conditions with an abundance of warm water taxa; Ecozone 2 marks when conditions became more eutrophic and the abundance of temperate taxa increased; Ecozone 3 represents a return to oligotrophic conditions with an increase in warm water taxa.

Keywords

, Biostratigraphy, Pabdeh Formation, Zagros, Ecozone, Nannofossil
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@article{paperid:1044666,
author = {Hadavi, Fatemeh and Khavari Khorassani, Manooseh Parvin and Ebrahim Ghasemi - Nejad and Moussavi Harami, Sayyed Reza},
title = {Biostratigraphy and Paleoecological Study of Pabdeh Formation in Interior Fars, Zagros Basin, Iran},
journal = {Open Journal of Geology},
year = {2014},
volume = {4},
number = {11},
month = {April},
issn = {2161-7570},
pages = {571--581},
numpages = {10},
keywords = {Biostratigraphy; Pabdeh Formation; Zagros; Ecozone; Nannofossil},
}

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%0 Journal Article
%T Biostratigraphy and Paleoecological Study of Pabdeh Formation in Interior Fars, Zagros Basin, Iran
%A Hadavi, Fatemeh
%A Khavari Khorassani, Manooseh Parvin
%A Ebrahim Ghasemi - Nejad
%A Moussavi Harami, Sayyed Reza
%J Open Journal of Geology
%@ 2161-7570
%D 2014

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