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)
Biostratigraphy of Mobarak Formation at Valyabad Section , Chalous Road

N. Ranjkesh; Bahaedin Hamdi Hamdi

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

http://dx.doi.org/10.22071/gsj.2012.54526

Abstract
  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

Biostratigraphy of Oligocene and Lower Miocene Sediments (Pabdeh, Asmari, Gachsaran and Mishan Formations) on the basis of Foraminifera in Southwest Jahrum, Interior Fars

J. Daneshian; D, Baghbani; S.A. Aghanabati; N. Norouzi

Volume 21, Issue 83 , December 2012, , Pages 157-166

http://dx.doi.org/10.22071/gsj.2012.54538

Abstract
  Oligocene-Lower Miocene sediments at Nareh section, situated in SW Jahrum consists of limestone, argillaceous limestone, marl and evaporatic sediments with a rich association of planktonic and benthonic foraminifera. In lower part of this succession, the Pabdeh sediments with a thickness of 115m is composed ...  Read More

Lithostratigraphy and Biostratigraphy of the Dalichai Formation at Talu (Northeast Damghan, Alborz) based on Ammonoids

K. Seyed Emami; N. Behfar; M. R. Majidifard; A. Behfar

Volume 21, Issue 82 , December 2011, , Pages 39-52

http://dx.doi.org/10.22071/gsj.2011.54439

Abstract
  Middle Jurassic strata are well developed northeast of Damghan (E Alborz). At the study section the Dalichai Formation has a maximum thickness of 156 m, consisting of an alternation of bluish-grey limestones and marls, being subdivided into 4 members. The lower boundary with the siliciclastics of the ...  Read More

New Founds in Biostratigraphy of Ilam Formation at Kuhe Assaluyeh. (Zagros Province)

Kh. Khosrotehrani; D. Baghbani; F. Keshani; M. Omrani

Volume 20, Issue 78 , December 2011, , Pages 53-60

http://dx.doi.org/10.22071/gsj.2010.54592

Abstract
  In order to study Biostratigraphy of Cenomanian – Late Campanian deposits (upper part of Sarvak Fm.,Ilam Fm. and lower part of Gurpi Fm.), kuhe Assaluyeh stratigraphic section selected. Sediments of this interval consist of limestone, argillaceous limestone and marl with thickness of 162 m. In ...  Read More

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

R. Shabanian

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

http://dx.doi.org/10.22071/gsj.2011.54208

Abstract
  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

Late Devonian Conodonts from Baghin Section, West of Kerman

H. Gholamalian; S. M. Hosseini-Nezhad; Z. Khosravi; I. Turkzadeh Mahani

Volume 21, Issue 81 , December 2011, , Pages 151-158

http://dx.doi.org/10.22071/gsj.2011.54379

Abstract
  Bahram Formation equivalent sequence in the Baghin area spans late Givetian to late Frasnian age. Thirty-two species and subspecies are identified. Ancyrodella alata, An. pristina, Polygnathus aspelundi, P. aequalis, P. subincompletus,P. politus, Icriodus alternatus alternatus, I. iowaensis iowaensis ...  Read More

Biostratigraphy and Studying the Hypothesis uses of Rugoglobigerina in Appointing the Paleosalinity in Central Alborz, Maastrichtian

M. Asgharian rostami; E. Ghasemi-Nejad; M. Shafiee ardestani; B. Balmaki

Volume 20, Issue 80 , January 2011, , Pages 23-32

http://dx.doi.org/10.22071/gsj.2011.55133

Abstract
  In order to studying salinity and biostratigraphy in Central Alborz basin, two sections Jorband and Ziarat-kola are sampled and studied Planktonic foraminifera and Echinoids fossil. Studying of foraminifera In Ziarat-Kola section determining three biozone by planktonic foraminifera. 1: Racemiguembelina ...  Read More

Foraminiferal Biostratigraphy of the Gurpi and Ilam Formations in East of Kangan Port and Ivan well in Persian Gulf

J. Daneshian; D. Baghbani; Kh. Khosrow- Tehrani; L. Fazli

Volume 19, Issue 74 , February 2010, , Pages 157-162

http://dx.doi.org/10.22071/gsj.2010.57348

Abstract
  In this study, foraminifera of the Ilam and Gurpi Formations, from Kuh-e- Assaluyeh section in east Kangan port in Boushehr province and Ivan well in Persian Gulf are investigated. Ilam Formation in Kuh-e-Assaluyeh section with 30 meter thickness and Ivan well with 68 meter thickness composed of limestone ...  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

http://dx.doi.org/10.22071/gsj.2010.55427

Abstract
  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

Lithostratigraphy and Biostratigraphy of the Dalichai Formation (Middle Jurassic) in Parvar Area, North of Semnan, Central Alborz

M. Shams; K. Seyed-Emami

Volume 19, Issue 75 , January 2010, , Pages 89-94

http://dx.doi.org/10.22071/gsj.2010.55443

Abstract
  The Dalichai Formation and its ammonite fauna is studied for the first time in the Parvar area, Central Alborz. At Parvar the Dalichai Formation, with a thickness of about 70 m, consist of an alternation of grayish silty marls, marlstones, marly limestone and limestone and is subdivided into 5 members. ...  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

http://dx.doi.org/10.22071/gsj.2010.55364

Abstract
  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

Biostratigraphy of the Shirgesht Formation in Kalmard Mountains in Southwest of Tabas with special Emphasis on Conodonts

A. Ghaderi; A. Aghanabati; B. Hamdi; A. Saeedi

Volume 18, Issue 70 , February 2009, , Pages 28-37

http://dx.doi.org/10.22071/gsj.2009.57371

Abstract
  To study the Shirgesht Formation biostratigraphy in Kalmard Horst in relation to its conodont content, the Miyugodar (Miangodar) stratigraphic section was selected which is located in southwest of Tabas city. The Shirgesht Formation in the mentioned section is mainly composed of siliciclastic rock units ...  Read More

Biostratigraphy of the First and Second Members of Type Section of the Shirgesht Formation in North of Tabas with Special Emphasis on Conodonts

A. Ghaderi; A. Aghanabati; B. Hamdi; J. F. Miller

Volume 17, Issue 67 , February 2008, , Pages 150-163

http://dx.doi.org/10.22071/gsj.2009.57826

Abstract
  The Shirgesht Formation is one of the fossiliferous units of Central Iran which in the type section is defined (informally) in the terms of 3 members. This formation is mainly composed of limestone, marl, siltstone, shale and dolomite, conformably overlay on the upper part of the Derenjal Formation with ...  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

http://dx.doi.org/10.22071/gsj.2009.57894

Abstract
         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

Biostratigraphy of Calcareous Nannofossils of Gurpi Formation in North Gachsaran

F. Hadavi; K. Khosrow Tehrani; S. Senemari

Volume 16, Issue 64 , March 2007, , Pages 14-23

http://dx.doi.org/10.22071/gsj.2008.58209

Abstract
  Nannofossils are good for biostratigraphy, since they are abundant, planktonic, rapidly evolving and largely cosmopolitan especially in the Late Cretaceous. With respect to this reality and due to the lack of any precise paleontological study, the nannofossils of Gourpi Formation were investigated in ...  Read More

Calcareous Nannofossils Biostratigraphy of Neyzar Formation in Type Section (Tange-Neyzar)

F. Hadavi; A. Pouresmaeil

Volume 17, Issue 65 , March 2007, , Pages 36-47

http://dx.doi.org/10.22071/gsj.2018.58170

Abstract
  Nannofossils are suitable for biostratigraphical studied since they are aboundant, planktonic, rapidly evolving and largly cosmopolitan, especially in Late Cretaceous.                                           ...  Read More