Author(s)

Masoud Abedpour^1,2, Massih Afghah^2*, Vahid Ahmadi², Mohammadsadegh Dehghanian³

¹Department of Geology, College Fars Science and Research Branch, Islamic Azad University, Fars, Iran.
²Department of Geology, Shiraz Branch, Islamic Azad University, Shiraz, Iran.
³Department of Geology, Bandar Abbas Branch, Islamic Azad University, Bandar Abbas, Iran.

Fahliyan Formation is importance in terms of Zagros stratigraphy since it is one of the oil reservoir rocks at the Jurassic-Cretaceous boundary. This rock unit consists of two types of deep and shallow facies in Zagros area. Recognition of bio-zones as well as discontinuity or continuity between the studied formation and the encompassed stratais taken into consideration. In order to study biostratigraphy on Fahliyan Formation, the stratigraphic section of Kuh-e-siah in the north-east of Fars Province was selected. In this section, Fahliyan Formation is measured 345 m consisting of thin to medium-bedded of limestone with the interbeds of sandy and dolomitic limestones. Fahliyan Formation conformably overlies Surmeh formation and underlies the marls of Gadvan formation. Vertical distribution of the identified foraminifers and calcareous algae confirms presence of 3 biozones in the sediments of Fahliyan Formation, as follows: 1) Calpionella alpina zone; 2) Pseudochrysalidina conica zone; 3) Pseudocyclammina lituus-Trocholina sp. assemblage zone. Based on Established biozones, the age of Fahliyan Formation in Kuh-e-Siah section was determined from Berriasian to Late Hauterivian.

Biostratigraphy, Lithostratigraphy, Fahliyan, Zagros, Iran

Abedpour, M. , Afghah, M. , Ahmadi, V. and Dehghanian, M. (2016) Biostratigraphic and Lithostratigraphic Study of Fahliyan Formation in Kuh-E-Siah (Arsenjan Area, North-East of Fars Province). Open Journal of Geology, 6, 1605-1618. doi: 10.4236/ojg.2016.612114.