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
Provenance of Dorud Formation Sandstones Based on Petrography and Geochemical Data, Khur Section, Central Alborz

Leili Bastami; Reza Moussavi; Mahboobeh Hosseini-Barzi; Bahaedin Hamdi Hamdi

Volume 28, Issue 111 , May 2019, , Pages 105-120

https://doi.org/10.22071/gsj.2018.90614.1174

Abstract
  The sandstones of the Dorud Formation (Early Permian) have been subjected to petrographic and geochemical studies in order to investigate provenance, tectonic setting, source rock and paleoclimate conditions in Khur section, Central Alborz. The Dorud Formation with a thickness of 360 m is mainly composed ...  Read More

Petrology
Petrology and geochemistry of plutonic rocks in west and south west of Salafchegan.

mozhgan Taheri; afshin ashjaardalan; Mohammad hashem Emami; Seyed Jamal Shaikh Zakariay

Volume 28, Issue 111 , May 2019, , Pages 185-194

https://doi.org/10.22071/gsj.2018.87169.1114

Abstract
  Abstract In the west and south-west part of Salafchegan near Zavarian village in Iran (In central Iranian volcano plotonic belt) there are some Plutonic rocks. Based on petrography and geochemistry findings these Plutonic rocks are Diorite, Monzonite and less Quartz monzonite. The main texture in Dioritic ...  Read More

Petrology
Geochemistry, tectonic environment and origin of Oligo-Miocene lavas in Zoolesk area, northeast of Sarbisheh (Southern Khorasan)

Maryam Kouchi; Malihe Nakhaei

Volume 28, Issue 110 , December 2018, , Pages 255-266

https://doi.org/10.22071/gsj.2018.94302.1214

Abstract
  In northeast of Sarbisheh city, southern Khorasan, outcrops of lava rocks are exist that from view of geological subdivisions, located in eastern part of Lut block. Lithologic composition of studied collections consist of andesite (pyroxene andesite, andesite, trachy andesite), dacite and rhyolite. The ...  Read More

Petrology
Geology, Geochemistry and Tectonomagmatic of Some Volcanic Cones in Southeastern Iran

Habib Biabangard; Farzad Molazadebravate

Volume 28, Issue 109 , September 2018, , Pages 161-174

https://doi.org/10.22071/gsj.2017.86320.1108

Abstract
  Kuh-Som, KuhzaBozorg and KuhzaKochak volcanic cones are located in the southeastern of Bam and northwest of Bazman cites. From the perspective geology these cones are belong to the Iranian central zone and south-eastern edge of Lut block. These cones are composed of extrusive igneous rocks such as basalt, ...  Read More

Petrology
Petrography and geochemistry of pyroclastic rocks from the Badam area, E- Mahabad- West Azarbaijan Province

Ashraf Torkian; Jamal Abdolahpour; Nafiseh Salehi

Volume 27, Issue 108 , September 2018, , Pages 191-200

https://doi.org/10.22071/gsj.2017.78871.1053

Abstract
  Pyroclastic rocks in the Badam area (E-Mahabad, west Azarbaijan Province), are located at the most extreme northern part of the Sanandaj-Sirjan zone. Petrographic studies revealed that they are basanitic in composition and have porphyric and microlithic porphyric textures. Olivine and clinopyroxne occur ...  Read More

Petrology
Investigations on amphibole origin in olivine-bearing hornblende gabbros from NW of Salmas; NW Iran

Masoumeh Ahangari; Mohssen Moazzen

Volume 27, Issue 108 , September 2018, , Pages 223-232

https://doi.org/10.22071/gsj.2017.80078.1065

Abstract
  Amphiboles in olivine-bearing hornblende- gabbros from NW of Salmas were crystallized in various textures including oikocryst and interstitial textures in the matrix, outer part of reaction rims around olivine, and at the rim and cleavages of clinopyroxene. On the basis of petrographical and textural ...  Read More

Petrology
The evolution of bubble size distributions (BSD) in Qorveh-Bijar Quaternary volcanism, East of Kurdistan

Rahimzadeh Bahman

Volume 28, Issue 109 , September 2018, , Pages 255-264

https://doi.org/10.22071/gsj.2017.87653.1129

Abstract
  Scoria cones are one of the main parts of East of Kurdistan volcanoes. Olivine, Pyroxene, Plagioclase and Biotite are main phonocrystals with Amygdaloidal-glassy matrix. This paper was studied processes of bubbles nucleation and grow during the eruption of scoria's unite using the Bubble Size Distribution ...  Read More

Petrology
Thermobarometry and tectonic setting of Gasht-e-Rudkhan metapelites, Gasht metamorphic complex, west of Rasht

Soghra Razaghi; mohsen nasrabady; Kazem Gholizadeh; Zeinab Davoodi

Volume 27, Issue 108 , September 2018, , Pages 269-280

https://doi.org/10.22071/gsj.2017.77110.1024

Abstract
  The Gash metamorphic complex is situated at the west of Rasht city. Gasht-e-Rodkhan metamorphic rocks are considered as a part of this metamorphic complex. Metapelites (schist, gneiss and migmatite) are the most important lithological unit of the Gasht-e-Rodkhan area. Index minerals consist of staurolite, ...  Read More

Petrology
Evaluation of impact processes in the formation of Neshveh volcanic rocks, NW Saveh

Mehdi Rezaei-Kahkhaei; Dariush Esmaeily; Hanieh Sahraei

Volume 28, Issue 109 , September 2018, , Pages 285-294

https://doi.org/10.22071/gsj.2017.91461.1190

Abstract
  Neshveh volcanic rocks located in the NW Saveh are parts of the Uromeyeh-Dokhtar magmatic arc. The rocks are mainly basalt, basaltic andesite, andesite and trachyandesite in composition. Petrographical studies represent some evidences for the lack of equilibrium between crystals and magma, such as sieve ...  Read More

Petrology
Mineralogy and determination of thermodynamic conditions at Javinan Skarn, South of Kashan

S. M. Tabatabaei Manesh; M. A. Mackizadeh; saeideh ranjbar; R. Gholinezhad

Volume 28, Issue 109 , September 2018, , Pages 327-338

https://doi.org/10.22071/gsj.2017.72014.1008

Abstract
  Javinan skarn is located at 115 km north west  of  Isfahan (40 km south of Kashan and east of Ghohrud), is included  in Central Iran structural zone and spread in contact with Ghohrud granitoid (Middle Miocene age) with shale, sandstone and limestone succession of the Jurassic age known ...  Read More

Petrology
Petrology, geochemistry and geochronology of SW Mayamey granitoids

M. Sadeghian; S. H. Hosseini; A. Hemmati; S. Shekari

Volume 26, Issue 103 , June 2017, , Pages 41-60

https://doi.org/10.22071/gsj.2017.46726

Abstract
  Granitoid plutons of SW Mayamey (60 Km east of Shahrood), located at the most northern margin of the central Iran structural zone, have granite composition (in general) and calk alkaline and peralouminous nature. In spite of coverage of these granitoids by Late Triassic – Early Jurassic sedimentary ...  Read More

Petrology
Geochemistry and fractal analysis of enclaves in the Dehe Bala granodioritic pluton in order to investigate magma hybridization processes

Z. Gharamohammadi; A. Kananian; M. Eliassi

Volume 26, Issue 103 , June 2017, , Pages 295-308

https://doi.org/10.22071/gsj.2017.46604

Abstract
  The Dehe Bala pluton is exposed approximately 45 km south-west of Boein Zahra town, Qazvin province. This pluton includes several mafic microgranular enclaves (MMES) with ellipsoidal and rounded shapes and varying sizes (from a few centimeters up to 30 cm). The MMEs are composed of diorite, monzodiorite ...  Read More