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
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

Economic Geology
Dacitic rocks from the south of Julfa (eastern Azerbaijan): Amphibole and plagioclase thermobarometry and crystallization condition

Morteza Delavari; Amir Ali Tabakh Shabani; Samaneh Ghanbari

Volume 30, Issue 117 , December 2020, , Pages 217-230

https://doi.org/10.22071/gsj.2019.188345.1662

Abstract
  The Oligocene dacitic volcanic rocks display widespread exposures in south of Julfa (eastern Azerbaijan). They generally show porphyritic to hyalo-porphyritic textures with major minerals of plagioclase, amphibole, quartz and biotite. Electron probe micro analyzer (EPMA) data indicates oscillatory zoning ...  Read More

Petrology
Petrography and geothermobarometry of lherzolites in Chah-Loqeh (Ashin Ophiolite)

Nargess Shirdashtzadeh; Ghodrat Torabi

Volume 29, Issue 116 , August 2020, , Pages 81-92

https://doi.org/10.22071/gsj.2019.170375.1619

Abstract
  In this study, some mantle lherzolites of Ashin ophiolite are investigated which contain evidence of a geotectonic/metamorphism during exhumation and obduction of oceanic lithosphere on the continental crust, after closure of Neo-Tethys Ocean. Based on petrography, their primary rock-forming minerals ...  Read More

Mineral chemistry of the Permian basalts from North of Baladeh Central Alborz: Geothermobarometry and tectonomagmatic setting

F. Rostami; M. Delavari; S. Amini; A. Dolati

Volume 27, Issue 106 , March 2018, , Pages 3-14

https://doi.org/10.22071/gsj.2018.58316

Abstract
  The Permian volcanic rocks of Central Alborz (northeast of Baladeh- Siahbisheh) crop out between Ruteh and Nesen Formations. The volcanic rocks are predominantly basaltic and plagioclase- phyric. Ferromagnesian minerals such as clinopyroxene and olivine are not modally abundant and sometimes are totally ...  Read More

Mineralography, Structural and Textural Studies and Genesis of Zaker Iron - Apatite Deposit (Northeast of Zanjan)

N. Khanmohammadi; A. Khakzad; J. Izadyar

Volume 19, Issue 76 , January 2010, , Pages 119-126

https://doi.org/10.22071/gsj.2009.55669

Abstract
  Zaker iron deposit is located in the northeast of Zanjan city and is a part of Tarom volcano – plutonic belt in Azarbaijan – West alborze structural zone. The main rocks of the area consist of folded volcanic - volcanoclastic rocks including breccia tuff, lapilli-tuff and andezitic – ...  Read More