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
Lithostratigraphy and biostratigraphy of Wuchiapingian succession in the Qareh-Goz section (south of Julfa, northwest of Iran) based on brachiopods

Parisa Mohammadi; Abbas Ghaderi; Ali Reza Ashouri

Volume 33, Issue 2 , June 2023, , Pages 239-258


  The Julfa region in East Azerbaijan Province exhibits one of the best continuous marine sedimentary successions across the Permian to Triassic boundary. The present study is focused on the brachiopod contents of the Julfa beds in Qareh-Goz section (41.5 m thickness) in the south of Julfa. This study ...  Read More

Stratigraphy and Palaeontology
Permian Corals of Ali-Bashi Mountains, Julfa, Northwest of Iran

Abbas Ghaderi; Mahdi Badpa; Ali Reza Ashouri

Volume 29, Issue 114 , December 2019, , Pages 97-108


  To study of Permian corals at the northwest of Iran, Ali-Bashi stratigraphic section was selected and sampled. After microscopic studies of several longitudinal, transverse, and serial sections were obtained from more than 180 coral fossils, 12 species belonging to 6 genera of rogues and tabula corals ...  Read More

Orientation of Carboniferous-Permian extension phase in the Central Alborz: paleostress analysis on the growth fault data

Akbar Jabbari; Asghar Dolati; Alireza Shahidi; Amin Behrooz

Volume 28, Issue 112 , August 2019, , Pages 147-156


  Abstract: The Alborz Mountain range is formed by collision between the Central Iran and Eurasia plates, since Late Triassic. Facieses studies on the Alborz and Central Iran indicate sedimentation in shelf and epicontinental shelf in passive margin of Gondwana during Paleozoic Era. This study represents ...  Read More

Sedimentary environment and sequence stratigraphy of the Routeh Formation in the west of Zanjan (Agh-Bolagh section)

Afshin Zohdi

Volume 27, Issue 108 , September 2018, , Pages 133-144


  In this study, for the first time stratigraphy and depositional history of the Routeh Formation have been evaluated in west of Zanjan (Agh-Bolagh section). These deposits with thickness of 102m consist of limestone, dolomitic limestone with the less frequency of thin-bedded calcareous shales. This sedimentary ...  Read More

Mineral chemistry of the Permian basalts from North of Baladeh Central Alborz: Geothermobarometry and tectonomagmatic setting

F. Rostami; M. Delavari; S. Amini; A. Dolati

Volume 27, Issue 106 , March 2018, , Pages 3-14


  The Permian volcanic rocks of Central Alborz (northeast of Baladeh- Siahbisheh) crop out between Ruteh and Nesen Formations. The volcanic rocks are predominantly basaltic and plagioclase- phyric. Ferromagnesian minerals such as clinopyroxene and olivine are not modally abundant and sometimes are totally ...  Read More

Paleobiodiversity of Permian (Yakhtashian-Dzhulfian) small foraminifera in Abe-Garm, Gazvin section,

M Medadi; H Mosaddegh; S.H Aleali; M.R Majidifard

Volume 26, Issue 101 , December 2017, , Pages 127-138


  Some  paleobiodiversity  indices such as total diversity, stand diversity, origination and extinction rates of Permian (Yakhtashian- Dzhulfian) small foraminifera were analyzed based from an outcrop in Abe-Garm area, Gazvin. Some important bizones that recognized by Taraz (1969), Taraz et al. ...  Read More

Lithostratigraphy and biostratigraphy of Middle and Late Permian strata in Illanlu stratigraphic section, North Qareh Ziaaeddin

R Shabanian; N Farajnezhad

Volume 25, Issue 98 , March 2016, , Pages 315-320


  Permian deposits crop out in the North East QarehZiaaeddin (Illanlu section) consisting Dorud, Ruteh, Nesen and Elli Bashi formation respectively. In this section, the Ruteh Formation composes about 751.3m of dark to grey, medium to massive limestone. The Nesen Formation contains approximately 627.3m ...  Read More

Litho-Biostratigraphy of Permian and Lower Teriassic Deposits in the Sibestan Section (Northwest Of Tehran)

N Haghighat; P Mansuri

Volume 24, Issue 95 , June 2015, , Pages 45-54


  The Permian deposits in the Sibestan section located at 65 km. northwest of Tehran and consist of 3 formal Formations. In order from lower to upper: 1- Dorud Fm. consisting of 205 meters of siliciclastic deposits of early Permian age and according to the lithostratigraphy facies is divided into 10 rock ...  Read More

Introduction of Permian Calcareous Algae Dasycladacean and Gymnocodiacean Family in Pir-Eshagh Section, South of Jolfa: Reporting Tabasoporella from Northwest of Iran

M Sadeghi; K Rashidi; R Shabanian

Volume 24, Issue 95 , June 2015, , Pages 55-66


  Succession of Permian system in Pir-Eshagh stratigraphic section has been mesured totally about 1400 m, which it's base consists mainly of Dorud formation with thickness of about 100 m which in turn has been overlain by Ruteh and Nesen formations with thickness of 1100 and 200 m respectively. Lower boundary ...  Read More

Lower Permian Fusulinids Biostratigraphy in Chili Formation (Member of Khan Group) in the Kalmard Area, Eastern Central Iran (Rahdar Section)

H. Yarahmadzahi; M. N. Gorgij; S. A. Aghanabati; A. Saeidi

Volume 22, Issue 87 , December 2013, , Pages 75-82


  The studied section is located west of Tabas (Rahdar Mountion) in the Kalmard Block. The newly named Chili formation, as the first rock unit of the Khan group consist mainly of arenacous limestone, limestone and dolomite and has disconformity contact with underlying lower carboniferous deposits (Padeh ...  Read More

Introduction to Permian Microfossils in Aru and Bibi Shahrbanoo Area (Albourz)

R. Shabanian

Volume 21, Issue 81 , December 2011, , Pages 37-44


  The Permian sequences of Aru and Bibishahrbanoo sections comprise the Dorud, Ruteh and Nesen formations respectively. A precise dating of the formations was provided based on the analysis of smaller foraminifers and fusulinid assemblages. The clastic Dorud Formation refered to Asselian and Sakmarian ...  Read More

Calcareous Algae of the Permian Deposits in Central Alborz: An Environmental and Sequence Stratigraphic Approach

H. Mosadegh; M. Lankarani

Volume 19, Issue 76 , January 2010, , Pages 79-84


  The carbonate facies of Permian in Gaduk area (Central Alborz) are dominated by calcareous algae. Study of the facies resulted in recognition of several species of Cyanobacteria, Dasycladacean and Gymnocodiacean green algae and also Phylloid algae. In the studied succession, Phylloid algae are identified ...  Read More

Biostratigraphy of Surmaq and Julfa Formations Harzand Village Stratigraphic Section (North of Marand) Based on Foraminifera

R. Shabanian; M. Parvanehne-Nezhad Shirazi; F. Javadinia

Volume 20, Issue 77 , January 2010, , Pages 141-150


  The detailed stratigraphical and lithological analysis of the Permian sequence in north Marand, NW of Iran at Harzand village has been studied . At this locating the Permian sequence consist of Dorud (82 m..)  Surmaq (258 m..) and Julfa (108 m.) formations respectively. The main lithology consist ...  Read More

The Role of Uniserial Foraminifers in Dating of Middle and Late Permian Carbonate Sequences

R. Shabanian; D. Vachard

Volume 18, Issue 69 , February 2008, , Pages 20-33


        Carbonate sediments of Permian age crops out in different parts of Iran. based On the foraminiferal content, they are attributed to Bolorian (?) ,Kubergandian to Dorashamian stages.These biogenetic limestone have plenty of Fusulinaceaa, non-fusulinid smaller foraminifers ...  Read More

Stratigraphy and Micropaleontology of the Permian Rocks in NW Iran

R. Shabanian; Kh. Khosrow ‏Tehrani; I. Momeni

Volume 16, Issue 63 , March 2007, , Pages 98-109


  Various stratigraphical sections of the Permian rocks in the northwest of Iran (Azerbaijan) shows that this sequence consists of Doroud, Ruteh, and Nesen formations in the southern flanks and Doroud, Surmaq , Julfa and Ali-Bashi formations in Zal and Illanlu sections. The analysis and study of forminifera ...  Read More