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)
Economic Geology
Genesis of the Miandasht manto-type copper deposit, East of Mayamey: based on geological, mineralogical and geochemical evidences

Fardin mousivand; Fatemeh Esmaeili; Mahmoud Sadeghian; Seyed Mehran Heidari

Articles in Press, Corrected Proof, Available Online from 26 February 2022

http://dx.doi.org/10.22071/gsj.2022.293355.1919

Abstract
  Miandasht copper deposit is located in 24km north west of Abbasabad of Shahrood, and in the Cenozoic volcanic belt of north of Central Iran. Host sequence has Eocene age and include submarine flows (andesite and basalt), pyroclastic (tuff breccia and agglomerate) and sedimentary complex (Nomullitic limestone, ...  Read More

Economic Geology
Mineralogy, texture and structure and genetic model of Kahak Manto-type copper deposit in the Eocene volcano-sedimentary sequence, south Qom

Zahra Kaboodi; Majid Ghaderi; Ebrahim Rastad

Volume 29, Issue 113 , November 2019, , Pages 145-154

http://dx.doi.org/10.22071/gsj.2018.99677.1273

Abstract
  The Kahak copper deposit occurs in the Eocene volcano-sedimentary sequence of Qom region, Urumieh-Dokhtar magmatic arc. The oldest rock unit in this sequence is a crystal tuff, overlain by tuff, andesite, sandstone, conglomerate, and limestone. Host rocks to the Kahak deposit include andesite and tuff, ...  Read More

Sedimentology
Diagenetic processes of the Shahbazan Formation in the east of the Lurestan zone

Mohadeseh Janbaz; Hassan Mohseni; Alireza Piryaei; Rudy Swennen; Bizhan Yousefi Yeganeh; Hassan Soradeghi Sufiani

Volume 28, Issue 109 , September 2018, , Pages 67-82

http://dx.doi.org/10.22071/gsj.2017.89098.1151

Abstract
  Middle-late Eocene Shahbazan Formation is exposed in the Lurestan area (Zagros region). The diagenetic features have been studied based on the data from five surface sections and four additional exploration wells. This investigation was carried out on the petrography of 700 thin sections, Cathodoluminescence ...  Read More

Eocene Masjeddaghi porphyry Cu-Au deposit; an example of island arc porphyry type deposit in NW Iran

S Hassanpour; S. Alirezaei

Volume 26, Issue 104 , September 2017, , Pages 43-58

http://dx.doi.org/10.22071/gsj.2017.50166

Abstract
  The Masjeddgaghi Cu-Au deposit is located to the southeast of the Arasbaran zone, NW Iran, to the south of the Lesser Caucasus. Mineralization in Masjeddaghi is associated with an Eocene dioritic subvolcanic pluton intruded into older volcanic and sedimentary rocks. The Masjeddaghi intrusive body is ...  Read More

Biostratigraphy of the Eocene carbonate deposits in the eastern part of the central Iran (Torbat-e-Jam area): stratigraphic significance of Nummulites perforatus and calcareous nannofossils

H Mosaddegh; M Hadi; M Parandavar

Volume 26, Issue 102 , March 2017, , Pages 91-100

http://dx.doi.org/10.22071/gsj.2017.44127

Abstract
  The Eocene marine deposits in the Chenarbu section in Torbat-e-Jam region (eastern part of Central Iran Zone) have been biostratigraphically studied based on large benthic foraminifera coincide with Shallow Benthic Zones (SBZ) and Calcareous Nannofossils, according to standard worldwide zones (NP). This ...  Read More

The Distribution and Statistical Analysis of Eocene Planktonic Foraminifera in the Khangiran Formation (Chehel-Kaman Synclinal Entrance, West Sarakhs) and their Paleoecological Use

M Vahidinia; M Vahdati Rad; A Sadeghi

Volume 25, Issue 97 , December 2016, , Pages 163-172

http://dx.doi.org/10.22071/gsj.2015.41415

Abstract
  Planktonic foraminifera of the Khangiran Formation that represents the last ​​marine deposits in the Kopeh-Dagh basin and exposed in the Chehel-Kaman synclinal entrance (west of Sarakhs) studied in this article. A sum of 32 species belonging to 11 genera of planktonic foraminifera were recorded allowing ...  Read More

Geochemistry, petrogenesis and tectonic setting of the Sarcheshmeh Eocene mafic lava flows, Southwest of Rafsanjan

S.Z Hosseini

Volume 25, Issue 100 , September 2016, , Pages 209-220

http://dx.doi.org/10.22071/gsj.2016.42264

Abstract
  The Eocene mafic lava flows of Sarcheshmehare cropped out in the southwest of Rafsanjan area at the central part of the Urmia – Dokhtar magmatic belt. The rocks are basalt, basaltic andesite and andesite in composition and consist of clinopyroxene + plagioclase ± olivine ± hornblende phenocrysts. ...  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

http://dx.doi.org/10.22071/gsj.2016.40892

Abstract
  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

Manto-Type Copper Mineralization in Pyrobitumen-Bearing Porphyritic Andesite, Koshkoiye District of Rafsanjan, Dehaj-Sardoiye Subzone

M Abolipour; E Rastad; N Rashidnejad Omran

Volume 24, Issue 95 , June 2015, , Pages 123-144

http://dx.doi.org/10.22071/gsj.2015.42418

Abstract
  The Koshkoiye district is located in Dehaj-Sardoiye subzone of Uromieh-Dokhtar Magmatic Arc in Kerman region. There are five active mines including Palangi, Cheshmeh Khezr, Tale Dozi, Abedini, and Eghbali. The geometry of mineralization is strata-bound and hosted in the Eocene Pyrobitumen-bearing porphyritic ...  Read More

Study of Geochemistry and Origin of Bentonite and Silica Mineralization in Kavir Mine, Khur and Biabanak, Isfahan Province

F Malek Mahmoodi; M Khalili; H Bagheri

Volume 24, Issue 93 , December 2014, , Pages 67-76

http://dx.doi.org/10.22071/gsj.2014.43525

Abstract
  Kavir bentonite in the northeast of Isfahan province is a part of the Khur bentonite horizon and lies in the Central Iranian structural zone. This deposits formed by the alteration of Eocene andesite-basalts. Based on the field observation several active faults are responsible in transporting siliceous ...  Read More

Petrology of Eocene Volcanic Rocks in the East of Sanandaj

H. Azizi; A. Akbarpour

Volume 19, Issue 74 , February 2010, , Pages 21-26

http://dx.doi.org/10.22071/gsj.2010.57314

Abstract
  Volcanic rocks with mainly andesite composition and lenzoid form outcropped in the Eocene sedimentary host rocks in the east of Sanandaj. Field studies confirm that they are intercalation with the sedimentary host rocks. In thin section, those have porphyritic, glomoroporphyric microlithic and microlithic ...  Read More

Depositional History of Jahrum Formation based on Distribution of Benthic Foraminifera and Strontium Isotope Stratigraphy on the Bushehr area

S. A. Moallemi; M. H. Adabi; A. Sadeghi

Volume 19, Issue 74 , February 2010, , Pages 169-176

http://dx.doi.org/10.22071/gsj.2010.57354

Abstract
  In order to determine the depositional environment and age of the carbonaceous Jahrum Formation, benthic foraminiferal assemblage of upper Eocene in the Jahrum Formation carbonates, located in GisakanMountain, 10 km east of the Borazjan city and adjacent fields, were studied. Based on the foraminiferal ...  Read More