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)
Tectonic setting of a granitoid pluton in southwest of Neyasar, the central part of Urmia-Dokhtar magmatic arc; petrography, U-Pb geochronology, geochemistry and interpretation of aeromagnetic data approaches

Shima Shomali; Mansour Ghorbani; Mohamad Reza Ghasemi

Articles in Press, Accepted Manuscript, Available Online from 21 June 2024


  The Marphioon pluton in the central part of Urmia-Dokhtar magmatic arc is among the Neotethyan oceanic lithosphere subduction-related intrusions. The composition of this pluton changes from granodiorite to tonalite. Marphioon granitoid gives rise to contact aureole zone with different peripheral thicknesses. ...  Read More

Mineral characteristics and geodynamic setting of Kuh-siah peridotites, N Sabzevar ophiolite, NE Iran

Ghasem Ghorbani; Hanieh Dadgar; Hadi Shafaii Moghadam

Articles in Press, Corrected Proof, Available Online from 17 February 2024


  The mantle sequence of the Kuh Siah ophiolitic suite is located at N Sabzevar and consists of harzburgite, dunite,, lherzolite, pyroxenite, and chromitite lenses. Fo% of olivines in peridotites are between 90-97%, and they have a relatively low NiO and are plotted in the Ezubonin-Mariana peridotites. ...  Read More

Mineralogy and Geochemistry of Biotite in granodiorites of Dalayon Area (South of Borujerd-Iran)

Seyevahid Shahrokhi

Articles in Press, Corrected Proof, Available Online from 10 March 2024


  The Dalayon granitoid is located in the south of Borujerd and, is part of the Sanandaj-Sirjan zone. The lithological composition includes granodiorite, granite, pegmatite-granite, tonalite, quartz diorite, tourmaline-bearing pegmatite, and quartz-tourmaline veins intruded into volcanic and metamorphic ...  Read More

High-Cr chromium spinels in Golashkard ultramafic unit, Faryab complex, southeast of Sanandaj-Sirjan, Iran

Afsaneh Naseri-Esfandagheh; Mohammad Rahgoshay; Sasan Bagheri

Volume 34, Issue 1 , March 2024, , Pages 53-66


  The Haji-Abad-Esfandagheh-Faryab ophiolitic belt is one of the most famous chromite-bearing occurrences in the south of Iran that has received considerable attention. Golashkard ultramafic unit includes dunite, highly serpentinized harzburgites, chromitite and wehrlite layers in the Faryab ophiolitic ...  Read More

Petrofabrics and Final Strain of Muteh-Golpayegan Amphibolites: Evidence of constructional Deformation in Sanandaj-Sirjan Metamorphic Zone

Behnaz Bakhtiari; Nahid Shabanian-Broujeni; Alireza Davoudian-Dehkordi; Hossein Azizi

Volume 33, Issue 3 , August 2023, , Pages 123-138


  The Muteh–Golpayegan Metamorphic Complex is located within the center of the Sanandaj-Sirjan Metamorphic Zone. The strain parameter measurements by the strain ellipsoid including strain ratio in the XZ principal plane, strain ellipsoid (RXZ), strain ellipsoid shape (K), and strain intensity (D) ...  Read More

The Geology and petrology of volcanic rocks and a plagiogranite intrusive body in the Zaghdareh area, Esfandagheh-Faryab ophiolitic complex, southeast Iran

Seyed Mohsen Kashfi; Saeed Alirezaei; Mohammad Reza Hosseini; Iraj Rasa

Volume 33, Issue 2 , June 2023, , Pages 67-92


  The Zaghdareh area in the Esfandagheh-Faryab ophiolitic complex, southern Sanandaj-Sirjan belt, embraces extensive outcrops of mafic-intermediate lava flows and a felsic intrusive body. The volcanic rocks are calc-alkaline to tholeiitic, metaluminous, and distinguished by depletions in light rare earth ...  Read More

Geochemistry and modeling of volcanic rocks in the Bashirabad area, N-Sonqor (Kermanshah Province)

Ashraf Torkian; Sara Damchin-Mashak; Zohreh Yarali; Maryam Souri

Volume 33, Issue 2 , June 2023, , Pages 93-110


  The studied area is located in N-Sonqor and in the Sanandaj-Sirjan zone. Field relationships and petrographic evidence show that volcanic rocks of the north of Bashirabad comprise of trachydacite to trachyandesite (and altered basaltic trachyandesite) and in the south of this area, it consists of andesite ...  Read More

Petrographical and geochemical evidences of magma mixing in the Chahargonbad granitoid rocks, southwest of Kerman

Abdolhamid Ansari

Volume 33, Issue 2 , June 2023, , Pages 111-134


  The Chahargonbad batholite is located  close to Sirjan and southeast of Urumieh-Dokhtar magmatic zone. The batholite's composition is acidic to intermediate that is intruded into the Eocene volcanic rocks. Although the main volume of these rocks consisted of granodiorite and monzogranite, this mass ...  Read More

Mineralogy and geochemistry of clinopyroxene in peridotites of Nehbandan ophiolitic complex, eastern Iran

Hamid Karimzadeh; Mohammad Rahgoshay; Iman Monsef

Volume 33, Issue 2 , June 2023, , Pages 135-154


  The petrographical examination of peridotites of the Nehbandan ophiolitic complex revealed that the peridotites of Kalateh Shahpouri, Qadamgah, Lah-Kouh, Cheshmeh anjir, Bandan, and Zolfaghari were of harzburgite type and Sefid-Kouh and Nasfandeh-Kouh were of lherzolite type. Generally, the types of ...  Read More

Investigating the U-Pb zircon data according to the mineral chemistry, Boneh-shurow metamorphic complex, Saghand, Central Iran

Leila Maleki; Nematollah Rashid Nejad-e-Omran; Abdolrahim Houshmandzadeh; John Cottle

Volume 33, Issue 2 , June 2023, , Pages 155-168


  In this article, metabasic and gneissic rocks of Gelmandeh and Zamanabad mountain (Boneh-Shurow complex, Saghand region) have been used for U-Pb dating. Analyses of zircon crystals yielded concordant U–Pb ages with weighted mean 206Pb/238U ages of 545.4 ±3.6 Ma (MSDW=1.7) for garnet amphibolite, ...  Read More

Amphibole crystallization and its role in the origin of the adakitic rocks from the Malayer-Boroujerd igneous complex

Amir Esna-Ashari; Massimo Tiepolo

Volume 33, Issue 1 , February 2023, , Pages 107-122


  The Malayer-Boroujerd plutonic complex (MBPC) is part of the Sanandaj-Sirjan continental arc of Iran resulted from subduction of Neotethys oceanic crust below Central Iran microcontinent. A number of adakitic samples have recently been reported in the MBPC. This study shows that among the various petrogenetic ...  Read More

Petrogenesis of granitoids from Dalfard area (Northwest of Jiroft): Evidence of Volcanic arc tectonic setting in Urumieh – Dokhtar magmatic belt

Zeinab Rahmanian; Gholam Reza Ghadami; Hamid Ahmadipour; Mohammad Poosti

Volume 33, Issue 1 , February 2023, , Pages 123-142


  Dalfard granitoids are located in the south-east of Kerman province and in the margins mainly include quartz diorite. Quartz diorites contain main minerals plagioclase, amphibole and biotite  and this work reveals that the rocks in this area are I type granitoides and they belong to calc-alkaline ...  Read More

Sr-Nd-Pb isotope and geochemistry of Anomaly 21 plutonic rock, Bafq metallogenic district (Central Iran): the evidence of Late Neoproterozoic magmatism

Niloofar Nayebi; Dariush Esmaeily; Soroush Modabberi; Ryuichi Shinjo

Volume 33, Issue 1 , February 2023, , Pages 143-160


  Anomaly 21A, as a part of Bafq iron-apatite ore metallogenic district, is located in Central Iran, and encompasses wide spectrume of igneous, sedimentary and metamorphic rocks. The igneous rocks that show narrow geochemical variations and dominantly plot in the monzonite to monzodiorite fields, are ...  Read More

Geochemistry and petrology of Upper Triassic basic volcanic rocks in the Central Alborz region, south of Pole Sefid

Saeid Samarbakhsh; Mohammad Hashem Emami; Seyed Mojtaba Mortazavi; Mansour Vosoughi-Abedini

Volume 33, Issue 1 , February 2023, , Pages 161-178


  The study area, situated 50 km north of Ghaemshahr, structurally belongs to the Central Alborz tectonic zone. The volcanic rocks of the area, including basalt, andesite, trachyandesite, and dolerite are the products of fractional crystallization and some contamination processes. Clinopyroxene, olivine, ...  Read More

Mineral chemistry, thermobarometry and genesis of clinopyroxenes in Silurian mafic metavolcanic rocks of Maku, North West of Iran

Farzaneh Valinasab Zarnagh; Mohsen Moayyed; Ahmad Jahangiri; Hossein Azizi

Volume 32, Issue 4 , December 2022, , Pages 15-28


  There are discontinuous outcrops of volcanic rocks in the West Azarbaijan province and in the north of Maku city. These volcanic complex were bimodal and compose of acidic and basic lava and pyroclastic rocks. Mineral chemistry studies show that clinopyroxenes in the studied rocks are diopside. These ...  Read More

Geochemistry and petrogenesis of intrusive rocks of Chadormalu deposit; an implication on whole rock geochemistry and Sr-Nd-Pb isotopes

Niloofar Nayebi; Dariush Esmaeily; Sourosh Modabberi; Ryuichi Shinjo; Reza Deevsalar; Bernd Lehmann

Volume 32, Issue 4 , December 2022, , Pages 29-42


  Sr-Nd-Pb isotopes and whole-rock geochemical analyses were carried out on plutonic rocks of the Chadormalu district to constrain the magmatic history of the Cadomian orogeny of the northern Gondwana margin during Late Precambrian–Early Paleozoic times. Despite the similarities in the geochemical ...  Read More

Petrography and mineral chemistry of tephritic dykes and associated xenoliths, the northeast of Meshkinshahr (the northwest of Iran)

Mohammad Fadaeian; Aminollah Kamali; Kourosh Mohammadiha

Volume 32, Issue 4 , December 2022, , Pages 43-64


  The studied area is located in Ardabil province and the northeast of Meshkinshahr city and structurally in Alborz-West-Azerbaijan zone. Tephritic dykes have pyroxenite and gabbro xenolites. Mineralogy of tephritic dykes and xenolites includes plagioclase, clinopyroxene, analcime, amphibole, olivine and ...  Read More

Geochemical variation and petrogenesis of magmatic rocks in the north of Ardabil: Implications for determination of the tectonomagmatic pattern of northwestern Iran

Ali Lotfi Bakhsh

Volume 32, Issue 4 , December 2022, , Pages 65-82


  In the north of Ardabil (from Namin to Lahroud) there are widespread sequences of Eocene and Quaternary mafic to intermediate and felsic magmatic activities with different compositions. The composition of these rocks varies from basaltic lavas as well as dacitic and rhyolitic domes in Namin to basalt ...  Read More

Geology, geochemistry and petrogenesis of Taftan volcano: An approach to geodynamic of Makran-Chagai magmatic arc

Jalil Ghalamghash; Meysam Akbari; Reza Jamal

Volume 32, Issue 4 , December 2022, , Pages 83-102


  The Taftan volcano hosts an extensive volcanic activity during Late Miocene to Quaternary where took place over Makran-Chagai subduction zone. Taftan rocks are mainly basaltic andesite, andesite, trachyandesite, and dacite that occur as lavas and pyroclastic rocks. They are characterized by basic-intermediate ...  Read More

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


  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

Petrography and application of mineral chemistry and thermobarometry of amphibolites in Jandaq metamorphic complex: Evidence of paleo-tectonic events in Central Iran

Arefeh Heidarianmanesh; Seyed Mohsen Tabatabaimanesh; Narges Shirdashtzadeh

Volume 32, Issue 4 , December 2022, , Pages 119-142


  Based on field observation and petrographic evidence, by progress in metamorphic degrees, a wide variety of metabasites have formed following the metamorphism at amphibolite facies (metamorphism M1) in the east of Jandaq. Thermobarometry of plagioclase- amphibole pairs indicate temperature ranges were ...  Read More

Tephra, Lava flow, Nuee Ardente and Lahar Hazard Zoning of Damavand Volcano

Ahmad Khaiatzadeh; Ahmad Abbasnejad; Hojjatolah Ranjbar; Hamid Ahmadipour; Behnam Abbasnejad

Volume 32, Issue 4 , December 2022, , Pages 355-366


  Damavand is one of the most potential volcanoes of Iran for future eruption. Such indicators as having a slightly- eroded cone, presence of many thermal springs, eruption activity in Late Quaternary, as well as the progression of the generating tectonic regime, all, attest this claim. The intensity of ...  Read More

Application of plagioclase mineral textures in lava, ash fall and surge deposits to examine young Damavand magmatic processes

Mohsen Zadsaleh; Fariborz Masoudi; Hamed Pourkhorsandi; Karen Fontijn

Volume 32, Issue 2 , July 2022, , Pages 13-30


  Damavand is a young volcanic edifice with an elevation of 5610 meters formed in the middle of the central Alborz Mountain range (N Iran) during the Quaternary. Its edifice is composed of trachyte and trachyandesite rocks, pyroclastic fall and flow deposits and lahars, formed during several eruptions ...  Read More

Tectonic environment and petrogenesis of igneous rocks of Tashvir area, Tarom mountains, northwest of Iran

Reza Jamal Omidi; Saeid Hakimi Asiabar; Shahrooz Haghnazar; Mansour Vosoghi Abedini

Volume 32, Issue 2 , July 2022, , Pages 105-120


  Tarom mountains are located at the southwestern end of the Alborz mountain range with an approximate northwest-southeast direction. Tashvir region is a part of the northern margin of the Tarom mountains. Most igneous rocks in this area include basalt, andesitic basalt, and interlayers of tuff. Enrichment ...  Read More

Geochemistry and origin of the ortho- amphibolites inTakhte-Soleyman (NE Takab)

Ziba Khodaean Chegeni; Nematollah Rashidnejad Omran; Ali Akbar Baharifar; Reza Nozaem; Carmela Vaccaro; José Francisco Santos

Volume 32, Issue 2 , July 2022, , Pages 133-148


  Takhte-Soleyman ortho-amphibolites as a part of Takab metamorphic complex are located in Northeast Takab. These rocks consist of amphibolite, Garnet-amphibolite, Kyanite-Garnet-amphibolite, Hornblendite and Epidote-amphibolite. Petrography and whole- rock geochemistry show that basalt, andesite and/or ...  Read More