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)
Tectonics
Structural evidence of tear faults in Kamarmahdi anticline, Tabas block, Iran

Saeid Hakimi-Asiabar; Babak Taherkhani; Mahnaz Fallah

Volume 33, Issue 4 , December 2023, , Pages 43-58

https://doi.org/10.22071/gsj.2023.393394.2082

Abstract
  Many examples of tear faults are observed in Tabas block. These faults are usually seen in belts with active folds. In this research, an example of the mentioned faults has been studied. The axis of the Kamarmahdi anticline has a north-south trend. In the north of Kamarmehdi anticline, there is a fault ...  Read More

Petrology
Mineral chemistry of Cr-Spinel in the Sargaz-Abshur ultramafic-mafic intrusion, SE of Iran : An implication to tectonic setting of the intrusion

Seyed Ali Akbar Asadi; Habibollah Ghasemi; Mohsen Mobasheri

Volume 32, Issue 4 , December 2022, , Pages 103-118

https://doi.org/10.22071/gsj.2022.317848.1960

Abstract
  Sargaz-Abshur (Sikhoran) ultramafic-mafic complex, which is situated in Esfandagheh area, SE Sanandaj-Sirjan metamorphic- magmatic zone,  intruded into Upper Paleozoic- Triassic metamorphic rocks and covered by Jurassic sedimentary rocks. This complex consists of harzburgite and porphyroclastic ...  Read More

Economic Geology
Carbon-oxygen isotopic covariation of the Changarzeh Pb±Ag deposit (south Natanz): implication on fluid/rock interaction and CO2 degassing processes

Ebrahim Tale Fazel

Volume 31, Issue 2 , September 2021, , Pages 163-172

https://doi.org/10.22071/gsj.2020.240744.1820

Abstract
  Study of carbon-oxygen isotopic variations in the gangue carbonate minerals and related host rocks has an important role in identifying carbonate hosted lead and zinc deposits and its mechanism of sulfide ore formation. The yellow color dolostone unit attributed to the Shotori Formation with the Middle ...  Read More

Tectonics
Seismotectonics of the East Alborz and Kopeh- Dagh zones using local seismic network data

M. Kouhpeyma; M. Talebian; L. Chen; A. Ghods; M. Ghorashi

Volume 31, Issue 1 , June 2021, , Pages 199-208

https://doi.org/10.22071/gsj.2021.131130

Abstract
  The Kopeh Dagh and Binalud-Alla Dagh mountains are important structural elements located in the northeastern boundary of Arabia-Eurasia collision zone. Due to existence of large cities with a long history of civilization, there is a relatively rich body of data on historical seismicity in this area. ...  Read More

Stratigraphy and Palaeontology
The early Aptian Oceanic Anoxic Event 1a (OAE 1a) based on calcareous nannofossils at Garau Formation (Kabir-Kuh anticline), West Iran

Azam Mahanipour; Maryam Eftekhari; Soheila Soheili

Volume 29, Issue 115 , June 2020, , Pages 53-60

https://doi.org/10.22071/gsj.2018.144766.1526

Abstract
  In order to study the early Aptian Oceanic Anoxic Event 1a (OAE 1a), calcareous nannofossils are investigated at the late Barremian ‒ early Aptian sediments of the Garau Formation at south west of the Kabir-Kuh anticline, Qaleh-Darreh section. Ninety species of calcareous nannofossils from 43 genus ...  Read More

Economic Geology
Geology and genesis of Halab Mn deposit, SW Zanjan

Amir Naderi; Ghasem Nabatian; Maryam Honarmand; Hossein Kouhestani

Volume 29, Issue 115 , June 2020, , Pages 207-218

https://doi.org/10.22071/gsj.2018.89091.1150

Abstract
  Halab manganese deposit is located in the Sanandaj- sirjan zone, 100 km southwest of Zanjan. The rock units in the study area include Precambrian Kahar and Jangoutaran marble Formations. Manganese mineralization in the Halab area, occurred as veins and massive in the Jangoutaran marble and minor amount ...  Read More

Mineral chemistry, thermobarometry KoheSiah volcanic complex,using the mineral chemistry of amphibole-biotite (North East Qorveh, Kurdistan )

somaye kazemi koohbanani; seyed jamal sheikh zakariai; mohammad hashem emami; Rahim Dabiri

Volume 28, Issue 112 , August 2019, , Pages 23-32

https://doi.org/10.22071/gsj.2018.95763.1230

Abstract
  KoheSiah volcanic complex is in north east of Qorveh in the Kurdistan province and in Sanandaj-Sirjan zone.The age of the studied region rocks are related to the quaternary time. Set volcanic cone with a crater that has been identified as unspecified and are an average height of 2157 meters above sea ...  Read More

New discovery on Ediacaran fossils from the Kushk Series in Bafq and Behabad regions, Central Iran

Seyed Hamid Vaziri; Mahmoud Reza Majidifard; Marc Laflamme

Volume 28, Issue 112 , August 2019, , Pages 261-268

https://doi.org/10.22071/gsj.2018.136508.1495

Abstract
  The Precambrian Kushk Series in the Bafq and Behabad regions of Central Iran contains a diverse assemblage of latest Ediacaran fossils that showcase a fossil assemblage much more diverse than typically known from the latest Ediacaran systems worldwide. The Kushk Series reaches a thickness of >500 ...  Read More

Tectonics
Structural deformations of Dona mine

Saeid Hakimi Asiabar

Volume 28, Issue 110 , December 2018, , Pages 235-246

https://doi.org/10.22071/gsj.2017.78835.1052

Abstract
  Abstract The area of Dona mine is a part of central Alborz. The Dona anticline is a part of pop up structure and located between Kandavan and Azadkuh thrust faults. In this research three sets of major faults are recognized. The first category of faults with W-E trend, dip 40-50, Rake angle more than ...  Read More

Economic Geology
Sulfur isotope variations of sulfide minerals in porphyry systems of the Meiduk cluster, Kerman Cenozoic magmatic arc, southeastern Iran

Hadi Mohammaddoost; Majid Ghaderi; Jamshid Hassanzadeh

Volume 27, Issue 107 , June 2018, , Pages 3-16

https://doi.org/10.22071/gsj.2017.75379.1019

Abstract
  Sulfur isotope data on pyrite, chalcopyrite and molybdenite in the A, B and D type veinlets in porphyry systems of the Meiduk cluster, located in northwestern part of the Kerman copper belt, show that these systems have near zero δ34S values. Sulfur isotope composition for the Chah-Firouzeh and ...  Read More

Geochemistry of major, trace and rare earth elements in bed-sediments of Urmia lake

S. Alipour; Kh. Mosavi-ovenlegi; E. Hosseini; Sh. Aslanpour; Z. Haseli

Volume 27, Issue 107 , June 2018, , Pages 51-62

https://doi.org/10.22071/gsj.2018.63758

Abstract
  The Urmia Salt Lake as the largest hyper saline lake of the world is located between west and east Azerbaijan provinces, NW Iran. Geochemistry of trace and rare earth elements of bed sediments taken from 25 Cm of the lower most of 1.5 meters depth  of drilled holes in 130 samples between 2014-2015 ...  Read More

The comparison of effective variables and methods in water inflow into hard rock tunnels (Case study: Karaj dam-Tehran water conveyance tunnel)

M. Morsali; M. Nakhaie; M. Rezaie; H. R. Naseri; J. Hassanpour

Volume 27, Issue 107 , June 2018, , Pages 113-122

https://doi.org/10.22071/gsj.2018.63799

Abstract
  Tehran- Karaj water conveyance tunnel (part 1), 16 kilometers in length, in the Karaj formation was excavated in order to convey the water from the Amir-Kabir dam to the Tehran refinery plant. The hydrogeology studies of the Karaj tunnel were done to discover the affecting parameters on the groundwater ...  Read More

geology, petrography, mineralization and fluid inclusion studies in the mesgarabad exploration area, southeast of tehran

M Norouzi; M. Lotfi; M. H. Emami; H. Jamali; A. Abedini

Volume 27, Issue 106 , March 2018, , Pages 243-256

https://doi.org/10.22071/gsj.2018.58253

Abstract
  Mesgarabad area is located in ~10 km southeast of Tehran, the Central- Alborz structural zone (CASZ) of Iran. The rock units exposed in the area consist of Eocene volcanics, volcano-sedimentary and sedimentary rocks intruded by post upper Eocene granodiorite to quartz monzo-diorite. These subvolcanic ...  Read More

Rare earth elements geochemistry of alteration system of the Basir-Abad area, Northeast of Ahar, NW Iran

A Abedini

Volume 26, Issue 101 , December 2017, , Pages 173-182

https://doi.org/10.22071/gsj.2016.41065

Abstract
  The Basir-Abad area (northeast of Ahar, East-Azarbaidjan province) is a part of the Cenozoic Ahar-Arasbaran magmatic belt in northwest of Iran. Intrusion of granitic and granodioritic igneous rocks of Oligocene age into the Eocene volcanic rocks (andesite, trachy-andesite, andesi-basalt and basalt) resulted ...  Read More

Devonian fish remains from Illangareh and peyr-es-hag sections, North West Iran

S Abbasi; B Hamdi; M.R Majidifard

Volume 26, Issue 101 , December 2017, , Pages 277-286

https://doi.org/10.22071/gsj.2016.40965

Abstract
  Sampling and study of Devonian deposits in North West Iran has done in two separate sections. 1) Illangareh section, 20 km far from NE the Maku city 2) peyr-es-hag composite section, situated South Jufa (W of Peyr-es-hag and Chay kasan villages). Because less work has been undertaken in the cited sections, ...  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

https://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

Economic Geology
Ore mineralization and fluid inclusion and sulfur isotope studies on the Shekarbeig deposit, southwest Mahabad, Sanandaj–Sirjan Zone

A. Baharvandi; M. Lotfi; M. Ghaderi; M. R. Jafari; H. A. Tajeddin

Volume 26, Issue 103 , June 2017, , Pages 201-218

https://doi.org/10.22071/gsj.2017.46614

Abstract
  Shekarbeig barite deposit is located 46 km southwest of Mahabad in northwestern part of the Sanandaj-Sirjan zone. The outcropped rock units in the area are Late Protrozoic metamorphosed volcano-sedimentary rocks, equivalent to Kahar Formation. The main ore mineral occurs as stratiform barite lenses in ...  Read More

Mineralogy and REEs geochemistry of kaolinized zones of the Goorgoor area, North of Takab, NW Iran

A. Abedini; A. Oroji; A. A. Calagari

Volume 26, Issue 102 , March 2017, , Pages 3-14

https://doi.org/10.22071/gsj.2017.44048

Abstract
  Thekaolinizedzonesof the Goorgoor area (north of Takab, West-Azarbaidjan province) are alteration products of andesitic rocks of Miocene age in northwest of Iran. Based on the mineralogical studies, kaolinite, quartz, jarosite, montmorillonite, albite, muscovite-illite, anatase, chlorite, orthoclase, ...  Read More

Laser Raman Microspectroscopy of Fluid Inclusions and Evolution of Ore Fluids in Baghkhoshk Porphyry Copper System, Southern Urumieh-Dokhtar Magmatic Belt

M Einali; S Alirezaei; R Bakker

Volume 25, Issue 97 , December 2016, , Pages 21-36

https://doi.org/10.22071/gsj.2015.41349

Abstract
  The Baghkhoshk porphyry copper system is located in the southern part of the Cenozoic Urumieh-Dokhtar magmatic belt of Iran. Mineralization in Baghkhoshk is associated with two shallow diorite-monzodiorite and granodiorite bodies that intruded the older andesitic volcanic rocks. Both intrusions are extensively ...  Read More

Processing and Interpretation of Aeromagnetic Data for Determination of Magnetic Structures and Buried Faults in Iran

A Amirpour Asl Miandoab; Q Sohrabi

Volume 25, Issue 97 , December 2016, , Pages 115-122

https://doi.org/10.22071/gsj.2015.41379

Abstract
  In this study, horizontal gradient and analytic signal methods have been applied to the reduced aeromagnetic data poled to Iran, to explore subsurface structures in the region. By using these two methods, it is possible to present a map of major geologic-magnetic structures especially large-scale faults ...  Read More

Mineral chemistry, thermobarometry and genesis of Clinopyroxenes in dyke swarm of northeast of meshkinshahr, NW Iran

M Fadaeian; A Jahangiri; M Moayyed

Volume 25, Issue 100 , September 2016, , Pages 19-36

https://doi.org/10.22071/gsj.2016.40672

Abstract
  The study area is located in the Ardabil province and in the north east of Meshkinshahr city.More than 200 small and large Eocene age dykes have outcrops in this area with basaltic, tephritic, andesitic and trachy andesit composition. Clinopyroxene, plagioclase, analcime and sometimes coarse olivine ...  Read More

Conodonts Biostratigraphy of Mila Formation, Shahmirzad Section, Central Alborz, Iran

S Soleymani; B Hamdi; A.R Karimi Bavandpur

Volume 25, Issue 98 , March 2016, , Pages 137-146

https://doi.org/10.22071/gsj.2016.41182

Abstract
  The studied section is located in the southern flank of the Central Alborz, 5 kilometers north of Shahmirzad City in the Semnan province. This section is situated at 35° 48′ 40″ N latitude and 53° 16′ 59″ E longitude. The Mila Formation has 5 measurable members in Type ...  Read More

Palaeoenvironmental Study of the Gurpi Formation at Farhadabad Section (Northeast of Kabirkuh) based on Palynofacies and Organic Geochemistry Analysis

E Zarei; E Ghasemi-Nejad

Volume 24, Issue 95 , June 2015, , Pages 13-22

https://doi.org/10.22071/gsj.2015.42251

Abstract
  The Gurpi Formation at Farhadabad section in west of Darehshahr, was studied in detail for environmental changes and water–level fluctuations via using organic matter contents of the rock samples.  Depositional environment interpretation was done based on integration of evidences derived from ...  Read More

Introducing Pectinid Bivalve Neithea notabilis (Münster) from the Aptian Deposits of Baghin Area, West of Kerman, Iran

A.L Arab; M.R Vaziri

Volume 24, Issue 95 , June 2015, , Pages 23-30

https://doi.org/10.22071/gsj.2015.42252

Abstract
  A relatively thick sequence of Mid-Cretaceous (Aptian) strata exposed in Baghin area, west of Kerman, Iran. The strata comprise a diverse macro-fauna such as bivalves, echinoids, gastropods, corals and brachiopods. Among the bivalves, presence of a pectinid species, Neithea notabilis is relatively conspicuous. ...  Read More

Geometry and Recent Kinematics of the North Qazvin Fault: Morphotectonics Approach

B Taherkhani; H Nazari; M Pourkermani; M Arian

Volume 24, Issue 95 , June 2015, , Pages 29-38

https://doi.org/10.22071/gsj.2015.41781

Abstract
  The E-W trending North Qazvin Fault is situated in north & northeast of Qazvin city in south-central Alborz. Across the fault, Karaj formation (Eocene) is thrusted over Hezardarreh Formation (A) and the alluvial B Formation. It could be the source for the 1119 AD earthquake with an estimated magnitude ...  Read More