Volume 33 (2023)
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 Litostratigaphy of Qom Formation deposits in the Navab anticlinal section (southeast of Kashan)

Zeinab Manouchehri; Tayebeh Mohtat; Seyed Ali Aghanabati; Morteza Khalatbari Jafari; Fatemeh Vakil Baghmisheh

Volume 31, Issue 3 , December 2021, , Pages 145-156


  The sediments are generally limestone and marl. The lower boundary with the loer red Formation is disconfomity and the upper boundary with the equivalent formatin of Bakhtiari Firmation is paraconformity. The total number of fossils found in this section is 69 species, 72 genera and 46 families. These ...  Read More

Stratigraphy and Palaeontology
Biozonation and paleobathymetry of the Gurpi Formation in the Dasht-e Arjan section , Zagros area , based on foraminifera

Arash shabanpour Haghighie; Lida Bakhshandeh; Tayebeh Mohtat; Masood Zamanipedram; Seyed hamid Vaziri

Volume 31, Issue 1 , June 2021, , Pages 209-220


  In this research the Gurpi Formation in the Zagros Basin outcropping in the Dasht-e Arjan section, Shiraz province ,for the purpose of biozonational and Paleobathymetric studies were investigated. The thickness of these sediments is about 130 m and consists of Limestones and Shales.To determine the palaeobathymetry ...  Read More

Stratigraphy and Palaeontology
Biostratigraphy and sea level change in the Coniacian-Maastrichtian deposits of the Fars basins (Pyrgheib section) based on planktonic foraminifera

A. Shaabanpour Haghighi; , L. Bakhshandeh; T. Mohtat; , M. Zamani Pedram; S. H. Vaziri

Volume 30, Issue 118 , January 2021, , Pages 179-190


  In this study the Upper Cretaceous sediments in the Zagrous Basins Fars  province,the Pyrgheib Section,for the purpose of Biostratighraphy and sea level change studies were investigated. These sediments with about 206 m thickness consist of Limestone, Shale, Marl and limy marl. The investigated ...  Read More

Stratigraphy and Palaeontology
Survey and investigation of K-Pg boundary in Huno and Zaluband sections (East of Khur area)

Fateme Mahdikhani; Mahmoud Reza Majidifard; T. Mohtat; L. Bakhshande; M. Zamanipedram

Volume 29, Issue 113 , November 2019, , Pages 271-282


  In order to study the biostratigraphy and lithostratigraphy of the K/Pg boundary two sections was considered. They are the Kuh-e Zaluband and Kuh-e Hunu sections in east of Khur (Esfehan Province). At the Kuh-e Zaluband section has a maximum thickness of 100 m, consisting of marl, limestone, sandy limestone, ...  Read More

New Lithostratigraphic and Biostratigraphic Finding on the Farrokhi Formation in Bouth West of Khur, Central Iran

H Seif; M Majidifard; T Mohtat

Volume 25, Issue 97 , December 2016, , Pages 197-210


  The Farrokhi formation in 15 km southwest of Khur with a thickness of up to 117m consists of marl and limestone with Maastrichtian age. In this section, the Farrokhi formation disconformably overlies the Haftoman formation below and the Chupanan formation above. In the present study, 87 genera and 103 ...  Read More

Microbiostratigraphy of the Pabdeh Formation (Middle-Upper Eocene) in the Southern slope of the Mishan and Eshgar Mountains in the Izeh zone, West of Kazeroon fault

F Chegeni; D Baghebani; S.H Vaziri; T Mohtat; N Kohansal Ghadimvand

Volume 25, Issue 99 , June 2016, , Pages 143-156


  For the purpose of biozonation of the Pabdeh Formation (Middle-Upper Eocene) based on planktonic foraminifera, a stratigraphic section in the southern slope of the Mishan Mountain and another in the Eshgar Mountain were studied. The thickness of these sections is 162.5 and 150 meters, respectively. The ...  Read More

Biozonation of the Gurpi Formatin in Banroushan Section (SW Ilam) based on Planktonic Foraminifera

L Bakhshandeh1; KH Khosro Tehrani; T Mohtat; S.H Vaziri; F Keshani

Volume 24, Issue 95 , June 2015, , Pages 85-96


  The Gurpi Formation is located in the Zagros basin, SW Iran . This Formation in the Banroushan section, SW Ilam,consists of 225 m shale with interbeds of marl that has two formal Members including Seymareh (Lopha) and Emam Hassan . These Members are made up of limestone. The lower and upper boundaries ...  Read More

Biozonation and Paleobathymetry of the Campanian -Maastrichtian Deposits Based on Planktonic Foraminifera in Jupar Section, Central Iran

B Ghasemshirazi; M.R Majidifard; A Kheradmand; T Mohtat

Volume 24, Issue 94 , March 2015, , Pages 65-72


  In this research, the Campanian -Maastrichtian deposits in Jupar section, Central Iran have been studied to determine biozonation and Paleobathymetry of the deposits. The planktonic and benthic foraminifera were studied in order to assign palaeobathymetry of the Campanian- Maastrichtian deposits. A depth ...  Read More

Biozonation and Abundance of Foraminifera in the Type Section of Ilam Formation

L Bakhshandeh; T Mohtat; H Bakhshandeh; S Senmari

Volume 23, Issue 92 , September 2014, , Pages 75-84


  The Ilam Formation, cropping out in the ZagrosMountain, consists of 195m of cream-colored limestones in the type section, south of Ilam city. This formation has conformable and continuous contacts with the lower Surgah and the upper Gurpi formations. In the present study, 35 foraminifera planktonic species ...  Read More

Palynostratigraphy and Reconsideration of the Shemshak Group Based on Dinoflagellate Cysts

E. Ghasemi-Nejad; M., Asadi; M. Shahmoradi; A. Aghanabati; T. Mohtat

Volume 22, Issue 86 , December 2012, , Pages 99-106


  The Nayband Formation was sampled at Chal-Sefid and Zard mountains in central Iran, for palynology and palynostratigraphy in order to take the advantage of dinoflagellate cysts to locate the Triassic and so called Jurassic boundary. The Chal-Sefid section is located about 45 km southwest of Kashan city ...  Read More

Correlation between Campanian – Maastrichtian Deposit in Kopeh-Dagh and Central Iran Basins

L. Bakhshandeh; A. Aghanabati; T. Mohtat

Volume 17, Issue 65 , March 2007, , Pages 26-35


  The first studied Abtalkh Formation with Campanian – Maastrichtian age is well exposed in Kopeh Dagh area (Mozduran section). This formation conformably underlain carbonates of Abderaz Formation and overlain by Neyzar sandeston Formation, both formations have a gradual contact. The second studied ...  Read More

Study of Planktonic Foraminifera and Biozonation in Abderaz Formation

L. Bakhshandeh; A. Aghanabati; F. Keshani; T. Mohtat

Volume 16, Issue 64 , March 2007, , Pages 126-135


       To revise the Abderaz Formation in Koppeh-Dagh basin, its type section was studied considering stratigraphical properties. The main lithology of Abderaz Formation includes gray to blue shale with a thickness of 286.86 meters. This Formation has an attitude of N 45˚ W and 80˚ ...  Read More