Scientific Quarterly Journal of Geosciences

Scientific Quarterly Journal of Geosciences

Stratigraphy of the Akchagyl Formation in the Moghan area

Document Type : Original Research Paper

Authors
Ahmad Zavarehei 1
Iraj Maghfuri Moghaddam 2
1 Tarbiat Moalem University, Tehran, Iran
2 Lorestan University, Khorram-abad, Iran
Abstract
Dasht-e-Moghan in north-west Iran, is a part of Koura- Lioni region and contains one of the most complete paratethys sequences in Iran. In this area flyschoid facies deposited from Paleocene to late Miocene and is underlained by Akchagyl Formation. The angular unconformity between Akchagyl Formation with respect to older rocks is related to the Attic orogeny event. Eustatic sea-level fluctuations occurred in the Upper Pliocene- Lower Quaternary which are indicated by fluvial lacustrine deposits equivalent to the Apsheron Formation. The Passadenian orogeny caused another angular unconformity between young horizontal alluvium and older formations. The most complete outcrop of the Akchagyl Formation has been found in the Moghan section. The faunal assemblage of the Akchagyl Formation reveals an age corresponding to the Lower to Middle Akchagylian stage.
Keywords
Dasht
e
Moghan
AKchagyl Formation
Apsheron
Attic phase
Lower to Middle Akchagyl

Subjects

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Scientific Quarterly Journal of Geosciences
Volume 10, 37-38
Autumn & Winter 2001, Vol. 10, No. 37-38
Winter 2000
Pages 34-47