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)
Petrology
Geochemistry and Petrogensis of Mafic Dykes of Zarrin District, NE Ardekan, Central Iran

Nasim Askari; reza Zarei Sahamieh; Jafar Omrani; Mohamad Heshem Emami; C., Vaccaro; J. F. Santos

Volume 31, Issue 3 , December 2021, , Pages 17-28

https://doi.org/10.22071/gsj.2021.242619.1829

Abstract
  Zarrin Mafic dikes, which outcrop in the Western Yazd block, Central Iran, trending NW–SE, emplaced into the Zarrin granitoid. They are sub-alkaline gabbro; characterized by intergranular and mylonitic foliated texture. Geochemical data reveal the Zarrin mafic dikes are from the partial melting ...  Read More

Petrology
Geochemistry and tectono-magmatic setting of Gezeldash daghi Miocene andesitic lavas (NW Marand), Eastern Azerbijan.

Ismail KhanChuban; Behzad Haj alilou; Mohsen Moayyed; Mohamadreza Hosseinzadeh; Morovat Faridazad

Volume 31, Issue 4 , December 2021, , Pages 29-42

https://doi.org/10.22071/gsj.2021.236969.1810

Abstract
  In the Gezeldash_daghi region, there is a significant outcrop of Miocene volcanic activity with andesitic composition associated with pyroclastic deposits including tuff, breccia and agglomerate. These rocks have porphyry to microporphyry texture with coarse crsytals of pagioclase, and matrix includes ...  Read More

Petrology
Petrology and geochemistry of Oligocene rhyolite lavas, from south of Qezel Ozan River: post- collision acidic volcanism

Tahereh Parsa; Monireh Kheirkhah; Mir Ali asghar Mokhtari

Volume 31, Issue 3 , December 2021, , Pages 49-60

https://doi.org/10.22071/gsj.2021.229547.1788

Abstract
  Cenozoic acidic volcanic rocks at the south of Qezel Ozan River are located within the Western Alborz-Azarbaijan magmatic zone and northern part of the Iranian-Turkish Plateau. The Oligocene acidic lavas in north part of Zanjan show rhyolitic to dacitic composition.  Hyaloporphyritic to hyalomicrolithic ...  Read More

Petrology
Oligo-Miocene extrusive rocks of Razan-Avaj area (Urumieh-Dokhtar magmatic belt): evidence of OIB- like magmatism in supra-subduction zone setting

Morteza Delavari; Khadijeh Ghorbani; Amir Ali Tabbakh Shabani

Volume 31, Issue 4 , December 2021, , Pages 97-110

https://doi.org/10.22071/gsj.2021.270639.1881

Abstract
  The Urmieh- Dokhtar magmatic belt (UDMB) lying parallel to the Zagros suture zone is resulted from the subduction of Neotethyan oceanic lithosphere beneath the southern margin of Eurasia. The studied volcanic rocks of the Razan- Avaj area are part of UDMB magmatism. These rocks are composed of olivine-basalts, ...  Read More

Petrology
Geothermobarometry of volcanic rocks from N Torud, NE Iran

Najla Saki; Ghasem Ghorbani

Volume 31, Issue 3 , December 2021, , Pages 95-108

https://doi.org/10.22071/gsj.2021.243475.1831

Abstract
  The study area is located in the N Turood, S Shahrood, and NE of Central Iran structural zone. Many basaltic dikes in this area intruded into the Eocene volcanic rocks and they also contain many gabbroic enclaves. Plagioclase (labradorite, bytownite-anorthite), amphibole (calcic, pargasite- magnesiohastingsite), ...  Read More

Petrology
Thermo-barometery of Permo-Triassic mafic Igneous intrusion, Talu, Eastern Alborz Zone

shirin shahabi; Habibollah Ghasemi; Mehdi Rezaei-Kahkhaei; Zhai Minggou

Volume 31, Issue 2 , September 2021, , Pages 173-188

https://doi.org/10.22071/gsj.2020.237027.1809

Abstract
  In the Talu area at NE Damghan in the Eastern Alborz Zone, the Permo-Triassic carbonate sequences host several mafic igneous inrusions with olivine gabbro, gabbro and alkali-diorite compositions. The most important rock-forming minerals of these intrusions are olivine, clinopyroxene, amphiboles and plagioclase. ...  Read More

Petrology
Petrography and geochemistry of Zardkuh igneous complex, Southeast of Iranshahr

Mostafa Delkhah; Habib Biabangard; Hamedreza Soloki

Volume 31, Issue 2 , September 2021, , Pages 189-198

https://doi.org/10.22071/gsj.2020.222312.1767

Abstract
  Zardkuh igneous complex is located in 35 km Southeast of Iranshahr and is geologically situated flysh zone and the Sistan-suture zone. Rock units in the area are Ophilitic rocks (upper Cretaceous), Eocene flysh and Oligomiocene intrusive and extrusive rocks (Zardkuh igneous complex). Patterns of minor ...  Read More

Petrology
Mineralogy, geochemistry and protolith of Neoproterozoic gneisses in Ghoshchi (North Urmia)

Mahsa Jamshidnia; manijeh Asadpour; Masoumeh Ahangari

Volume 31, Issue 1 , June 2021, , Pages 1-12

https://doi.org/10.22071/gsj.2020.221987.1766

Abstract
  Qushchi gneisses in the north of Urmia city are a part of magmatic-metamorphic complex in NW of Sanandaj-Sirjan zone. Gneiss, with eldsparses and schist, form Precambrian basement of the area. These rocks contain lipidogranoblastic, augen, porphyroblastic and myrmekite textures, and composed of quartz+ ...  Read More

Petrology
Introduction and characterization of Neogene volcanic eruptions in the Parizarea (Kerman province) and their petrological features using pyroclastic deposits

Maryam Daieparizi; Hamid Ahmadipour; Abbas Moradian

Volume 31, Issue 1 , June 2021, , Pages 25-36

https://doi.org/10.22071/gsj.2020.195831.1683

Abstract
  In the Pariz area, (Kerman province), there are special deposits and in the geological maps, they have introduced as detrital unconsolidated Neogene Conglomerates (Ng). Detailed field observations of these deposits in this study showed that they are pyroclastic deposits from the post Eocene unknown explosive ...  Read More

Petrology
Whole rock chemistry, dating and tectonomagmatic setting of metagabbros from Qotur area, NW-Iran

Mohammad Saadat; Robab Hajialioghli; Mohssen Moazzen

Volume 31, Issue 1 , June 2021, , Pages 71-84

https://doi.org/10.22071/gsj.2019.150091.1543

Abstract
  The Qotur metamorphic complex in west of Khoy is consist of various metamorphic rocks including of metabasites, metapelitic and meta-calcareous rocks and serpentinites. The metagabbros form main outcropping rocks in the area. Plagioclase and pyroxene are the main porphyroclasts of metagabbros. Epidote, ...  Read More

Petrology
Geochemistry and petrogenesis of mafic volcanic rocks from Kahak area (Urumieh-Dokhtar magmatic arc)

Sakine Moradi; Muhammad Reza Ghorbani; Shao- Yang Jing

Volume 31, Issue 1 , June 2021, , Pages 97-110

https://doi.org/10.22071/gsj.2020.217506.1754

Abstract
  The Kahak mafic volcanic rocks in the central part of the Urumieh-Dokhtar Magmatic Arc are composed of ‎basalts‏ ‏and‏ ‏basaltic ‎andesite and show sub alkaline to transitional affinity. They are calc-alkaline based on the tholeiitic index (THL). U-‎Pb zircon dating ‎yields ...  Read More

Petrology
Geochemistry and tectonic setting of the Garmab ophiolitic complex, Northeast of Kamyaran

Ayoub Veisinia; Mohammad Ebrahimi; Bahman Rahibzadeh; rasoul Esmaeili

Volume 31, Issue 1 , June 2021, , Pages 135-148

https://doi.org/10.22071/gsj.2019.147061.1528

Abstract
  Kamyaran ophiolitic complex located in the northeast Zagros orogeny along the crush zone between Arabian-Iranian plates. This complex outcropped between the Harsin ophiolites in southeast and Sarwabad ophiolite in northwest. Field observation reveal the fact that the Garmab Ophiolite in the northeast ...  Read More

Petrology
Petrography and Geochemistry of ophiolitic peridotite from Marivan-Kamyaran region, Zagros (western Iran)

Azad karimi; ali ahmadi; Monireh Kheirkhah; Abdolreza Partabian

Volume 30, Issue 118 , January 2021, , Pages 25-36

https://doi.org/10.22071/gsj.2020.222846.1770

Abstract
  The peridotites from Marivan-Kamyaran ophiolite suite (MKO), outer Zagros ophiolite belt, western Iran, are studied for the petrological and geochemical characteristics. Both mantle and crustal peridotites are present in the Marivan-Kamyaran ophiolitic sequence. Extensive compositional variations in ...  Read More

Petrology
Petrography, geochemistry and petrogenesis of Alvand batholith leucocratic granites

hojjat hajhassani; Jalil Ghalamghash; Mansour Vousoughi Abedini; Rahim Dabiri; Hamideh Rashid

Volume 30, Issue 118 , January 2021, , Pages 61-70

https://doi.org/10.22071/gsj.2020.183525.1646

Abstract
  The leucocratic granite emplaced as small masses and dykes in the Alvand batholith. The leucocratic granite consists of tourmaline alkali granite, biotite alkali granite, arfvedsonite alkali granite, rutil alkali granite, and biotite- muscovite granites with alkaline and peraluminous affinities. They ...  Read More

Petrology
Tectono-magmatic setting of the Albite-bearing metasomatite of the Ghoghart magnetite-apatite ore deposits, Northeast Bafq, Central Iran

kiamars hosseini; Majid Shahpasandzadeh

Volume 30, Issue 118 , January 2021, , Pages 81-94

https://doi.org/10.22071/gsj.2020.215856.1744

Abstract
  The Late Neoproterozoic-Early Cambrian albite-bearing metasomatite, rhyolites and rhyodacites predominantly constitute the host rocks of the Choghart magnetite-apatite deposit in Central Iran. The geologic evidences show three types of albites in the host albite-bearing metasomatite. The performed mineralogical ...  Read More

Petrology
Petrography and Petrology of early Paleozoic bimodal metavolcanic rocks in North of Maku, North West of Iran

Mohsen Moayyed; Farzaneh ValinasabZarnagh; Ahmad Jahangiri; Hosein Azizi

Volume 30, Issue 118 , January 2021, , Pages 109-122

https://doi.org/10.22071/gsj.2020.196325.1693

Abstract
  there are Discontinuous outcrops of volcanic rocks in the northern regions of Maku. The volcanic rocks were metamorphosed in the green schist facies. These volcanic complex were bimodal and compose of acidic and basic lava and pyroclastic rocks. The lava of this unit covers the Cambrian and equivalent ...  Read More

Petrology
Mineral Chemistry and Whole Rock Isotope Chemistry: an aperture to petrogenesis of the Abbasabad basaltic- andesitic rocks, east of Shahrood

Habibollah Ghasemi; Mahbubeh Arabzadeh Baniasadi; mojtaba rostami hosuri

Volume 30, Issue 118 , January 2021, , Pages 135-144

https://doi.org/10.22071/gsj.2020.215769.1741

Abstract
  The Abbasabad Eocene volcano-sedimentary belt in the east of Shahrood includes of basaltic-andesitic rocks and related pyroclastics along with interlayers of sedimentary rocks. The volcanic rocks include olivine basalt, trachybasalt, trachy andesybasalt, trachyandesite and andesite with various textures ...  Read More

Petrology
Application of mineral chemistry of biotite and orthopyroxene in investigation of tectono-magmatic condition of enclaves of Alvand plutonic body and their host rocks

sara shakiba; ali asghar sepahi; Mohammad reza Ghasempour; kazu nakashima

Volume 30, Issue 118 , January 2021, , Pages 225-240

https://doi.org/10.22071/gsj.2020.211581.1735

Abstract
  Alvand plutonic body is one of the largest intrusive plutons in northern part of Sanandaj-Sirjan zone which is located in south of Hamadan city. It is composed of porphyroid and leucocratic granitoids, basic intrusive rocks, and abundant enclaves in various sizes and in a variety of forms. Biotites of ...  Read More

Petrology
Investigate the partial melting process in Hornblend bearing migmatites with Ghar-Naz, northwestern Iran

haleh ghorbani; robab hajialioghli; mohsen moazzen

Volume 30, Issue 117 , December 2020, , Pages 25-38

https://doi.org/10.22071/gsj.2019.200297.1699

Abstract
  The Ghareh naz migmatites were formed as a result of partial melting of amphibolites under granulite facies conditions. Structeral, textural, mineralogical and geochemical evidence in the migmatites migmatites indicates their formation via partial melting during partial melting. The studied migmatites ...  Read More

Petrology
Petrography, geochemical minerals from Hormuz Formation in the Hormuz Island

Mahboobeh Jamshidibadr; Narges Sadat Faramarzi

Volume 30, Issue 117 , December 2020, , Pages 51-64

https://doi.org/10.22071/gsj.2019.154267.1564

Abstract
  Hormuz Island, a salt diapir in southern Iran, mostly composed from evaporite-carbonate sediments of Neoproterozoic. So far, no significant studies have been done belong to the petrography and geochemistry of the Hormuz evaporite-carbonate sediments. Moreover, Salt movements made it difficult to distinguish ...  Read More

Petrology
Geothermobarometry and tectonic Setting of basic igneous rocks from the Horjand, NE Kerman

Mohammad reza Ghasempour; Nahid Shabanian; alireza Davoudian; hasamaldin moeinzadeh

Volume 30, Issue 117 , December 2020, , Pages 75-90

https://doi.org/10.22071/gsj.2019.177508.1632

Abstract
  The Horjand area is located in northeast of Kerman in the Central Iran zone and the Kashmar-Kerman tectonic belt. In this area, gabbroic rocks and doleritic dykes are intruded into the sedimentary rocks of Desu Series with Infra-Cambrian age. The gabbros and doleritic dykes have relatively same composition. ...  Read More

Petrology
Petrography, Geochemistry and Geocronology study of of Mesozoic Volcanism in Abarkoh Region, Sanandaj-Sirjan Zone

Atefeh Nimroozi; gholamreza ghadami; Jamshid Hassanzadeh; Mohammad posti

Volume 30, Issue 117 , December 2020, , Pages 91-100

https://doi.org/10.22071/gsj.2019.140210.1510

Abstract
  The study area is located near Abarkoh city and in Sanandaj –Sirjan zone. The volcanic activity of this region is in the form of dacite and rhyolite domes and lava flow and in the petrographic studies includes coarse plagioclase, quartz and hornblende. The volcanic rocks are considered as the separate ...  Read More

Petrology
Petrology of the Neogene volcanic rocks in south Arab abad, Lut Block

Morteza Khalatbari Jafari; Narmin Banehee; Mohamad Faridi; Mehdi Moradi

Volume 30, Issue 117 , December 2020, , Pages 123-134

https://doi.org/10.22071/gsj.2019.178970.1635

Abstract
  The Neogene volcanic rocks are exposed in south Arab abad, Lut block. The studied volcanic rocks covered Eocene and Oligocene volcanic lavas and Neogene evaporitic deposits. The base of the Neogene volcanic sequence made of breccia and tuff gradually covered by andesite, trachyandesite and dacitic lavas. ...  Read More

Petrology
Petrography, geochemistry and tectonic setting of mafic dyke swarms of Zrigan granitoid, north of Bafq (Central Iran)

Gholamreza Tajbakhsh

Volume 30, Issue 117 , December 2020, , Pages 175-188

https://doi.org/10.22071/gsj.2020.222632.1768

Abstract
  Mafic dyke swarms of the Zarigan granitoid in the north of Bafq have intruded the Lower Cambrian volcanic-sedimentary sequence of central Iran. These dykes are lithologically classified as gabbro-diorite and alkali gabbro. The alkaline gabbros are younger and penetrate higher horizons. Geochemically, ...  Read More

Petrology
Petrogenesis of Ghoshchi acidic patches, based on zircon U-Pb dating and isotopic analyses, NW Iran

manijeh Asadpour; Soraya Heuss

Volume 30, Issue 117 , December 2020, , Pages 295-308

https://doi.org/10.22071/gsj.2019.198126.1690

Abstract
  Acidic patches with alkali-granite nature have been intruded within the mafic rocks of the Qushchi complex (70 Km north of Urmia city). This area is northwestern part of the SSz zone with Precambrian basement. These granits have high amounts of K2O and SiO2 (over 70 wt%). Dating by U-Pb age of zircon ...  Read More