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
Lithostratigarphy and Biostratigaraphy of the Dalichai Formation in Absharaf Section, Northwest of Damghan on the base of Ammonites (East Alborz)

marjan zadesmaeil; Mahmoud Reza Majidifard; Seyed Hamid Vaziri; Davood Jahani

Volume 31, Issue 2 , September 2021, , Pages 91-100

https://doi.org/10.22071/gsj.2017.97439.1250

Abstract
  The Middle and Upper Jurassic sedimentary well successions is located in the northwestern Damghan, (eastern Alborz range). The Dalichai Formation with a thickness of 618 meters in the studied section consists of marl, limestone and marly limestone. The lower boundary with the siliciclastic of the underlying ...  Read More

Sedimentology
Primary mineralogy of Dalichai carbonate formation and separation of upper boundary with Lar formation based on geochemical studies in northeast of Semnan

Elmira Shahkaram; Mohammad Hosein Adabi; Davood Jahani; Seyed Hamid Vaziri

Volume 31, Issue 1 , June 2021, , Pages 13-24

https://doi.org/10.22071/gsj.2019.188226.1661

Abstract
  The Dalichai Formation is the first rock unit of the Middle Jurassic in the Alborz sedimentary basin that has occurred in a marine environment. The boundary of the Dalichai formation with Shemshak Formation is erosional unconformable while it is concordant with Lar formation. Due to lithological similarity, ...  Read More

Sedimentology
Depositional Environment, Sequence stratigraphy and Reservoir quality of the Jahrum Formation in Binaloud oil field, Persian Gulf

keyvan ahzan; Nader Kohansal Ghadimvand; Seyed Mohsen Aleali; Davood Jahani

Volume 30, Issue 117 , December 2020, , Pages 147-154

https://doi.org/10.22071/gsj.2019.156461.1571

Abstract
  The Jahrum Formation (Paleocene-Mid Eocene) is one of the most important reservoir units in the Zagros basin and the Persian Gulf. The thickness of this formation in Binaloud oil field in Persian Gulf, which mainly consists of limestones and Dolomites, is about 660 meters. In this research, depositional ...  Read More

Identification of an old lake for the first time in quaternary units around Yazd city

behnam pashazadeh; Davood Jahani; razieh Lak; Hamid nazari; masoud zamani pedram

Volume 28, Issue 112 , August 2019, , Pages 101-108

https://doi.org/10.22071/gsj.2018.89241.1155

Abstract
  The purpose of this research is to identify quaternary units and determine the sediment boundaries around Yazd city in Central Iran. The origin of Quaternary sediments is mainly related to erosion of the Triassic, Cretaceous, and Palaeozoic units. Based on the results of sedimentation, six types of facies ...  Read More

Petroleum geology
Microfacies Analysis and Reservoir characterization Low Resistivity Pay, Dariyan Formation, Southeastern of Persian Gulf

Bita Arbab; Davood Jahani; Bahram Movahed

Volume 28, Issue 109 , September 2018, , Pages 23-32

https://doi.org/10.22071/gsj.2017.79545.1062

Abstract
  The Aptian Shuaiba deposits, in southeastern of Persian Gulf due to having resistivity less than 6 to 1 ohm.m, is considered as low resistivity pay zone. On the basis of experimental  studies 8 microfacies defined which settled in a carbonate platform of homoclinal ramp model that belong to outer, ...  Read More