Volume 34 (2024)
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)
Sedimentology
Petrography and geochemistry of the Shotori dolomites in Kalmard section, Central Iran

A. Rahimi; M. H. Adabi; A. Nabati; M. R. Majidifard; A. M. Jamali

Volume 26, Issue 103 , June 2017, , Pages 61-72

https://doi.org/10.22071/gsj.2017.46729

Abstract
  Carbonate sequences of the Shotori Formations (Middle Triassic) with a thickness of 308 m, were deposited in the Kalmard region of the Tabas city in Central Iran basin. The lower contact of the formation gradually and conformably overlies the Sorkhshale Formation and upper contact is faulted. The Shotori ...  Read More

Economic Geology
Mineralogy, geochemistry, fluid inclusion study and genesis of Homeijan magnetite- apatite mineralization, SW Behabad, Yazd province

R. Amirkhani; M. Ebrahimi; M. A. A. Mokhtari; A. M. Azimzadeh

Volume 26, Issue 103 , June 2017, , Pages 83-100

https://doi.org/10.22071/gsj.2017.46732

Abstract
  The study area which is introduced as Homeijan magnetite- apatite mineralization in this paper, is a part of the Posht-e-Badam block in the Central Iranian Zone and is located at ~12Km southwest of Behabad. This area is composed of volcano-sedimentary rocks and acidic- basic intrusions of Precambrian ...  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

https://doi.org/10.22071/gsj.2015.41505

Abstract
  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

Back-arc extensional magmatism in the Oligo-Miocene basin of the Northern edge of Central Iran

H Ghasemi; M Rostami Hossuri; M Sadeghian; F Kadkhodaye Arab

Volume 25, Issue 99 , June 2016, , Pages 239-252

https://doi.org/10.22071/gsj.2016.40915

Abstract
  Subduction of the Neo–Tethyan oceanic lithosphere beneath the southern edge of the Central Iran caused development of extensional back-arc basins behind the Urumieh–Dokhtar magmatic belt during Mesozoic and Cenozoic. Some researchers have noted formation of the oceanic back-arc basins in ...  Read More

Petrology and geochemistry of Homijan granitoid and associated felsic rocks (SW Behabad, Central Iran)

F Mohamadi; M Ebrahimi; M.A.A Mokhtari

Volume 25, Issue 98 , March 2016, , Pages 223-236

https://doi.org/10.22071/gsj.2016.41219

Abstract
  The study area,~12 km to the southwest of the city Behabad, is a part of the Posht-e-Badam Block in Central Iran. Igneous rocks in the area occur as intrusive, sub-volcanic and volcanic bodies and exhibit a wide range of composition from felsic to mafic. The intrusive and sub- volcanic rocks include ...  Read More

Upper Triassic foraminifera from Howz-e Khan member of Nayband Formation in central Iran (South of Naybandan)

B Saberzadeh; K Rashidi; M Vahidinia

Volume 25, Issue 98 , March 2016, , Pages 283-300

https://doi.org/10.22071/gsj.2016.41229

Abstract
  This paper describes systematic of the foraminifera from Howz-e Khan Member of Nayband Formation in 25km south of the type locality which are exposed in northwest of the Dig-e Rostam area about 300km north of Kerman city and is composed of medium to thick bedded fine-grained limestones containing sponges, ...  Read More

Thalassinoides-Phycodes Compound Trace Fossil from Albian–Cenomanian Strata of Gazak, South Kerman, SE Iran

N Abbassi; M Parvanehnezhad Shirazi; M.A Hosseinzadeh

Volume 24, Issue 95 , June 2015, , Pages 145-152

https://doi.org/10.22071/gsj.2015.42304

Abstract
  Albian–Cenomanian siliciclastic-carbonate sediments of northwest Rayen in south Kerman, southeast Iran (526 m) are classifiable to three informal units. Unit one includes conglomerates, sandstones and siltstones with limestone and marl intercalations. Unit two is composed of Orbitolina bearing ...  Read More

Lower Carboniferous Holothurian Sclerites from the Banarizeh Section, Southeast Isfahan

M Nouredini; M Yazdi; A Ashouri; S Rahmati

Volume 24, Issue 95 , June 2015, , Pages 165-174

https://doi.org/10.22071/gsj.2015.42308

Abstract
  The Lower Carboniferous deposits (Shishtu II Formation) is exposed in the Banarizeh section, Southeastern Isfahan, Central Iran. The Shishtu II Formation is characterized by continental to shallow marine deposits, where it unconformably overlies the Alluvial deposits and is unconformably overlain by ...  Read More

Small Pelecypoda of Qom Formation (Early Miocene) in west of Ashtian, Central Iran

I Maghfouri Moghaddam; S Yasboulaghi

Volume 24, Issue 95 , June 2015, , Pages 275-280

https://doi.org/10.22071/gsj.2015.42367

Abstract
  The Qom Formation is well exposed in Ashtian area (Central Iran). Pelecypoda of the formation in a stratigraphic section of west of Ashtian were examined in terms of paleontological and paleoecological criteria. In this section, the Qom Formation overlies the Lower Red Formation with a gradual contact ...  Read More

Palaeoecology of Late Triassic Deposits, in Dizlu Section North of Isfahan, Central Iran based on Scleractinian Corals

M Mannani; M Yazdi

Volume 24, Issue 95 , June 2015, , Pages 281-290

https://doi.org/10.22071/gsj.2015.42368

Abstract
  The Nayband Formation in North of Isfahan includesfive Members: 1- Gelkan Member (marl and sandstone), 2- Bidestan Member (sandstone and reefal limestone), 3- Howz- e- Sheikh Member (marl and sandstone), 4- Howz- e- Khan Member (marl and reefal Limestone) and 5- Qadir Member (marl and sandstone). The ...  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

https://doi.org/10.22071/gsj.2015.42576

Abstract
  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

The Upper Triassic Sphinctozoan Sponges of the Howz-e Khan Member of the Nayband Formation, Southwest of Naybandan, East Central Iran

K Rashidi; B Saberzadeh

Volume 24, Issue 94 , March 2015, , Pages 173-182

https://doi.org/10.22071/gsj.2015.42603

Abstract
  The Upper Triassic sediments in the Central Iran are known as Nayband Formation. They are a set of carbonatic and detritic sediments that can be divided into several members. The carbonatic Bidestan and Howz-e Khan members contain a diverse fauna and flora. In order to study and identify the taxonomic ...  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

https://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

Mineralization Trend of Radioactive Elements and Their Relation to Serium and Yttrium Using Data Lithogeochemical in Saghand Fifth Anomaly

M Khalajmasoumi; M Lotfi; A Memar Kuchebagh; A Khakzad; P Afzal

Volume 24, Issue 93 , December 2014, , Pages 201-210

https://doi.org/10.22071/gsj.2014.43560

Abstract
  The studied area in the Saghand fifth anomaly is located in the Bafgh-Posht-e-Badam metalogeny belt in the Central Iran zone. Uranium, Thorium and Rare Earth Elements mineralization are hydrothermal and metasomatism type related to area intrusion bodies (Granite and Gabbro available in the north of study ...  Read More

Identification of Host Rock Source at Sediment-Hosted Copper Type Mineralization in Tabas-Ravar Basin Based on Geochemical and Petrographic Studies

R Hendi; A.A Hassani pak

Volume 24, Issue 93 , December 2014, , Pages 211-221

https://doi.org/10.22071/gsj.2014.43561

Abstract
  This paper is part of the results of researches carried out on geochemical characteristics of sediment-hosted copper deposits in the Tabas-Ravar block trying to identify the mineralization host rock characteristics and the source rock of the sediments in the area. For this purpose, not only the common ...  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

https://doi.org/10.22071/gsj.2013.53832

Abstract
  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

Geochemistry and Petrogenesis of the Raveh Neogene Volcanic andSub-Volcanic Rocks in the Urumieh – Dokhtar Magmatic Belt (Central Iran)

M. H. Emami; R. Monsef; N. Rashid Nejad Omran

Volume 22, Issue 85 , December 2013, , Pages 91-104

https://doi.org/10.22071/gsj.2011.54025

Abstract
  Miocene to Pliocene volcanic rocks in the Raveh region have exposed northern part of the Urumieh - Dokhtar Magmatic Belt. Neogene volcanic rocks are situated on Upper Red Formation. Magmatic activity separated in two phase. The first phase is composed of basic to intermediate volcanic rocks such as basaltic-andesite ...  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

https://doi.org/10.22071/gsj.2012.54071

Abstract
  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

Facies Analysis and Environmental Interpretation of Planolites and Palaeophycus Trace Fossils from Paleozoic Sediments of Mid-Iran Zone

A. Bayat Gol; N. Abbassi; A. Mahboubi; R. Moussavi-Harami; H. Amin Rasouli

Volume 21, Issue 83 , December 2012, , Pages 185-196

https://doi.org/10.22071/gsj.2012.54543

Abstract
  Some of Paleozoic sediments from Alborz and Central Iran subzones from Mid-Iran zone evaluated for distinction of Palaeophycus and Planolites ichnofossils. These sediments include Shale Member of Lalun Formation, Shirgesht Formation, member 5 of Mila Formation and Geiroud Formation.  A diverse ichnofauna  ...  Read More

Petrography, Geochemistry, Origin and Tectonic Setting of Khoshoumi – DarAnjir Intrusive Complex, SW Saghand (Central Iran)

N. A. Rashidnejad Omran; A. A. Fattahi; F. Masoudi

Volume 22, Issue 86 , December 2012, , Pages 245-260

https://doi.org/10.22071/gsj.2012.54092

Abstract
  The late Eocene post-collisional Khoshoumi- Dar-Anjir intrusive complex consist of two adjacent Khoshoumi granite and Dar Anjir diorite plutons  in Saghand area, located in 120 km northeast of Yazd in Central Iran structural zone. This complex intruded within high-grade metamorphic rocks of Chapedony ...  Read More

Dynamic Analysis of Fractures in North of Torud – Moalleman Area (Central Iran, East South of Damghan)

A. Keynezhad; M. Pourkermani; M. Arian; A. Saeedi; M. Lotfi

Volume 20, Issue 78 , December 2011, , Pages 3-16

https://doi.org/10.22071/gsj.2010.54577

Abstract
  Detailed geological and structural analysis of north of Torud-Moalleman area (Central Iran), between Anjilu fault in north and Torud fault in the south, led to tectonic elements of this limit such as fractures and relative of their mechanism with left lateral sheared zone of two main faults. This study ...  Read More

Active Tectonics of Alborz Mountain using Continuous GPS Measurements

F. Khorrami; K. Hessami; H.R. Nankali; F. Tavakoli

Volume 21, Issue 82 , December 2011, , Pages 223-230

https://doi.org/10.22071/gsj.2011.54507

Abstract
  We present the results of continuous GPS measurements to interpret present-day kinematic along and across northern Iran (i.e. the Alborz mountain range and northern part of Central Iranian Block (CIB)). In this study velocity field and geodetic strain rate of 30 CGPS stations from 2005 to 2009 were calculated ...  Read More

Chahmir Zn-Pb Deposit, a Typical Selwyn-Type (Vent Proximal) Sedex Deposit, Bafq Basin, Central Iran

A. Rajabi; E. Rastad; N. Rshidnejad Omran; R. Mohammadi Niaei

Volume 20, Issue 79 , January 2011, , Pages 143-156

https://doi.org/10.22071/gsj.2011.55069

Abstract
  Chahmir Zn-Pb deposit is one of several sediment-hosted Zn-Pb deposits (e.g., Koushk, Zarigan, Dareh Dehu & Cheshmeh Firuzeh) located in southeast of Bafq basin hosted within a Early Cambrian volcano-sedimentary sequence, simultaneous with global Cambrian ocean anoxic event, forming in a rift environment. ...  Read More

Biostratigraphy & Paleoenviroment of the Qom Formation in Northeast of Mahneshan

J. Daneshian; M. Shahrabi; M. Akhlaghi

Volume 19, Issue 76 , January 2010, , Pages 45-50

https://doi.org/10.22071/gsj.2010.55643

Abstract
  75 samples of the Qom Formation in Andabad, northeast Mahneshan, were investigated. The Qom Formation in the examined section with a thickness of 301m, mainly consists of limestone and marl, and disconformably overlies the Lower Red Formation and lies under the sediments of the Upper Red Formation. A ...  Read More

The ،Tectonic Geomorphology and Seismotectonics of the Ravar Fault Zone, South of Central Iran

A. Shafiei Bafti; M. Shahpasandzadeh

Volume 19, Issue 75 , January 2010, , Pages 57-66

https://doi.org/10.22071/gsj.2010.55436

Abstract
  According to potential of the intra-continental strike-slip faults for occurrence of large earthquakes, which are also considered as the main elements of active continental deformation, determination of their geometry and kinematics along with recognition of the active segments and temporal structural ...  Read More