Volume 32 (2022)
Volume 31 (2021)
Volume 30 (2020)
Volume 29 (2020)
Volume 28 (2019)
Volume 27 (2018)
Volume 26 (2017)
Volume 25 (2016)
Volume 24 (2015)
Volume 23 (2014)
Volume 22 (2013)
Volume 21 (2012)
Volume 20 (2011)
Volume 19 (2010)
Volume 18 (2009)
Volume 17 (2008)
Volume 16 (2007)
Stratigraphy and Palaeontology
Biostratigraphy and palaeoecology of the Surgah Formation based on calcareous nannofossils in shah-Nakhjir section (south west Ilam)

Mohammad Hassan Shokri; Fatemeh Hadavi; Lida Khodadadi; M. Notghi Moghaddam; Hossein KAMYABI SHADAN

Volume 28, Issue 110 , December 2018, , Pages 183-192

https://doi.org/10.22071/gsj.2018.79020.1061

Abstract
  Economically the Surgah Formation is the most significant in the Zagros sedimentary basin. In this study, the calcareous nannofossils have been investigated of the Surgah Formation from the Shah-nakhjir section. The thickness of the Surgah Formation is about 147 meters and composed of marly limestone ...  Read More

Biostratigraphy of the Surgah Formation in Shah Nakhjir Anticline Section (Southwest of Ilam City) Based on Planktonic Foraminifera and Correlation with Type Section

A Sadeghi; M Raziani

Volume 24, Issue 93 , December 2014, , Pages 119-126

https://doi.org/10.22071/gsj.2014.43551

Abstract
  In order to study of the Surgah Formation in Southwest of Ilam City, one section in the Shah Nakhjir anticline was selected. The thickness of the Surgah Formation is about 161 meters and consists mainly of green shales and olive green marly shales with intercalation of gray shaly limestones. The lower ...  Read More

Biostratigraphy and Biogeography of the Gurpi Formation in Mish-khas Section, South of East Ilam Province, Based on Foraminifera

M. Asgharian Rostami

Volume 22, Issue 85 , December 2013, , Pages 135-148

https://doi.org/10.22071/gsj.2012.54029

Abstract
  In order to study the Gurpi formation for biostratigraphical purposes the 310 meters thick section was sampled at Mish-khas Sectiona, Ilam province. The sequence is mainly made up of monotonous marl, limy marl and Limestone and contains two formal members of Lopha (with brachiopod, Echinoid and Bivalve) ...  Read More

Sea Level Changes Based on Planktonic Foraminifera and a Study of their Umbilical System in Relation to Depth in the Sarvak Formation in Kabirkuh, Southeast Ilam

G. Daneshian; S. A. Moallemi; A. A. Azad

Volume 22, Issue 88 , December 2013, , Pages 165-174

https://doi.org/10.22071/gsj.2013.53690

Abstract
  In this research, the Sarvak Formation and lower part of the Surgah Formation in Kabirkuh anticline, southeast Ilam with thickness of 897 m were studied. Prospect of changes in umbilical structures of planktonic foraminifera such as lip, ortico throughout of Albian to Turonian were investigated. The ...  Read More