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)
Lithostratigraphy and biostratigraphy of the Silurian sequence at Robat-e-Qarebil stratigraphic section, based on conodonts

A. Ghaderi; J. Taheri; A. Kerachian; A. Mousavinia

Volume 27, Issue 107 , June 2018, , Pages 165-172


  Investigation of Silurian succession equivalent to the Niur Formation at the northwest of Robat-e-Qarebil (instantly south of Western Kopeh-Dagh), is led to introduction of lithostratigraphical units in details and identification of some Llandovery conodonts. The sampled interval in this stratigraphic ...  Read More

Cambrian-Ordovician boundary in Western Koppeh-Dagh and Eastern Alborz

H Jahangir; M Ghobadi Pour; A.R Ashouri

Volume 26, Issue 101 , December 2017, , Pages 3-10


  The Cambrian- Ordovician boundary strata in the Kalat section, western Koppeh-Dagh, comprise continuous succession of fine clastic sediments, mostly argillites with some shell beds, accumulated offshore. This interval contains  analmost complete succession of conodont biozones, including the Cordylodus ...  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 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

Biostratigraphy of Mobarak Formation at Valyabad Section , Chalous Road

N. Ranjkesh; Bahaedin Hamdi Hamdi

Volume 21, Issue 83 , December 2012, , Pages 111-122


  The Mobarak Formation with 347.5 m, thickness is well exposed  in Valyabad section , at the Karaj - Chalus road . The lower contact with underlying  Laloon Formation is disconformable ,whereas stratigraphic relation to the overlying Dozdeband formation is transitional. According to the lithological  ...  Read More

Gastropods Identification of Asmari Formation in Shamsabad and Runiz Stratigraphic Sections in South- East of Shiraz (Fars Province)

V. Ahmadi; A. Zavarei; A. Motaharian; M. Munt

Volume 21, Issue 82 , December 2011, , Pages 95-102


  Three rock units have been identified in Shamsabad and Runiz stratigraphic sections of Asmari Formation in internal Fars region. Gastropods of Shamsabad and Runiz stratigraphic sections belong to four orders, Mesogastropoda, Neogastropoda, Architaenioglossa, Sorbeoconcha. Seven genuses and three subgenus ...  Read More

Biostratigraphy of the Abderaz Formation at Type Section Using Planktonic Foraminifera

M. Shafiee Ardestani; E. Ghasemi-Nejad; H. Vaziri Moghaddam

Volume 19, Issue 75 , January 2010, , Pages 25-34


  In order to study the fossil contents of the Abderaz Formation for biostratigraphical purposes the 300 meters thick section was sampled at type section. The sequence is mainly made up of grey shales and marls with two units of chalky limestone in upper part. The lower contact of the formation with Aitamir ...  Read More

Stratigraphy of the Cretaceous Deposits in Haftad Gholleh(East of Arak)

P. Rezaei rouzbahani; B. Hamdi

Volume 17, Issue 68 , February 2008, , Pages 94-107


        Cretaceous deposits are outcropped in Haftad Gholleh area, 25 km in the east of Arak city. In this study three stratigraphic sections were measured in the northeast, southeast and center of the area. Based on detailed study of stratigraphy and paleontology, in contrast ...  Read More

Biostratigraphic Study of Mila Formation in Shahmirzad Section, North of Semnan with Special Reference to Conodonts

L. Fazli; B. Hamdi

Volume 17, Issue 68 , February 2008, , Pages 190-195


         The Mila formation from late Early Cambrain to Early Ordovician age is well exposed in the Shahmirzad section consists of 5 lithological members. Several biozones of conodonts have been identified in this section, several taxa of body and trace fossils have been collected ...  Read More

Paleoecology and Biozonation of Late Paleocene to Early Miocene Benthic Foraminifers in North & South East Shiraz

Kh. Khosrotehrani; M. Afghah; V. Ahmadi

Volume 16, Issue 63 , March 2007, , Pages 50-69


  In this research, two stratigraphic sections were chosen from the late Paleocene to early Miocene (Jahrum  and Asmari Formations). These sections includes Sadra and Dodaj plus 645 meters of late Paleocene to early Miocene scdiments. For this investigation 360 thin sections were prepared and 12 samples ...  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