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
The early Aptian Oceanic Anoxic Event 1a (OAE 1a) based on calcareous nannofossils at Garau Formation (Kabir-Kuh anticline), West Iran

Azam Mahanipour; Maryam Eftekhari; Soheila Soheili

Volume 29, Issue 115 , June 2020, , Pages 53-60

http://dx.doi.org/10.22071/gsj.2018.144766.1526

Abstract
  In order to study the early Aptian Oceanic Anoxic Event 1a (OAE 1a), calcareous nannofossils are investigated at the late Barremian ‒ early Aptian sediments of the Garau Formation at south west of the Kabir-Kuh anticline, Qaleh-Darreh section. Ninety species of calcareous nannofossils from 43 genus ...  Read More

Diagenesis and its effect on the reservoir quality of the Asmari Formation, Aghajari Oilfield, SW Iran

Mostafa Moradi; Asadollah Mahboubi; Mohammad Khanehbad; Ali Ghabieshavi

Volume 28, Issue 112 , August 2019, , Pages 33-42

http://dx.doi.org/10.22071/gsj.2018.125401.1434

Abstract
  The Asmari Formation is the main reservoir rock for the Aghajari oilfieild. It is composed of about 400-meter limestone, dolostone and interlayers of sandstones. Study of 1200 meters drilling cores, 2800 microscopic thin sections, 12 SEM analyses along with 125 routine core tests in 5 cored wells indicate ...  Read More

Description and biostratigraphy of the ammonite fauna from the Kazhdumi Formation at Tang-e-Maghar, Northwest of Behbahan (Zagros Basin)

A. Yavari; M. Ghavidel syooki; M. R. Majidifard; S. H. Vaziri

Volume 27, Issue 107 , June 2018, , Pages 221-232

http://dx.doi.org/10.22071/gsj.2018.63827

Abstract
  The Kazhdumi Formation is well exposed and accessible in Tang-e Maghar, northwest of  Behbahan city, Zagros basin. In this area, this formation has a thicknees of 344 m and it mainly consists of alternation of black - gray shale with medium – thin-bedded cream – gray argillaceous limestone. ...  Read More

Paleoclimate changes recorded in Gurpi Formation in south of Ilam based on Playnomorphs and Foraminifera

E. Zarei; E. Ghasemi-Nejad; A. Dehbozorgi

Volume 27, Issue 105 , December 2017, , Pages 245-252

http://dx.doi.org/10.22071/gsj.2017.53956

Abstract
  The Gurpi Formation was studied from different aspects at two sections, Farhadabad and Kavar, in southwest and southeast of Ilam where it is composed of 205 m and 158 m of grey to blue marl and shale beds and occasionally thin beds of argillaceous limestones with two formal members of Seymareh (Lopha) ...  Read More

Sedimentary setting and paleoecology of the Upper Cretaceous rudist-bearing deposits in Khorram Abad, Zagros Basin

I. Maghfouri Moghaddam

Volume 26, Issue 104 , September 2017, , Pages 173-186

http://dx.doi.org/10.22071/gsj.2017.50260

Abstract
  Sedimentary setting and paleoecology of the rudist-bearing Upper Cretaceous  strata were studied in three sections in Khorram abad. The sections include: Tang Shabi Khone, Cham Sangar (Tarbur Formation) and Pir Shams Eldin (upper part of Amiran Formation). The Tang- E Shabi Khone and Chamsangar ...  Read More

Stratigraphy and Palaeontology
Calcareous nannofossils biostratigraphy of the Gurpi Formation at Kalchenar section in Northwest of Izeh

S. Senemari

Volume 26, Issue 103 , June 2017, , Pages 287-294

http://dx.doi.org/10.22071/gsj.2017.46606

Abstract
  Calcareous Nannofossils of the Gurpi Formation have been investigated at Kalchenar section (Northwest of Izeh). In this section, the Gurpi Formation is mainly consists of marls, shaly marls and marly limestones. For introducing index species, calcareous nannofossil assemblages and biozones, 150 slides ...  Read More

Palaeoenvironmental Study of the Gurpi Formation at Farhadabad Section (Northeast of Kabirkuh) based on Palynofacies and Organic Geochemistry Analysis

E Zarei; E Ghasemi-Nejad

Volume 24, Issue 95 , June 2015, , Pages 13-22

http://dx.doi.org/10.22071/gsj.2015.42251

Abstract
  The Gurpi Formation at Farhadabad section in west of Darehshahr, was studied in detail for environmental changes and water–level fluctuations via using organic matter contents of the rock samples.  Depositional environment interpretation was done based on integration of evidences derived from ...  Read More