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)
Economic Geology
Mineralization of chromite and ilmenite in Kurdistan ophiolite: An approach to determine the geotectonic setting

Mohammad Ali Rajabzadeh; Mohammad Amini

Volume 32, Issue 3 , September 2022, , Pages 133-144

https://doi.org/10.22071/gsj.2022.308944.1941

Abstract
  This is the first report on the presence of podiform chromititeLenses associated with the Marivan ophiolite. These ore deposits with granular massive fabric are hosted by dunite and harzburgite occurred in south Marivan city. Chemistry of chromian spinel in the chromite Lenses indicated that Cr#  for ...  Read More

Petrology
Mineral geochemistry of clinopyroxene and its application in thermo-barometery of basaltic rocks in Ahmad-Abad, Tahmoures and Gahre-toreh volcanoes (North Qorveh-Kurdistan)

Ashraf Torkian; nafiseh salehi

Volume 29, Issue 114 , December 2019, , Pages 15-24

https://doi.org/10.22071/gsj.2018.104562.1303

Abstract
  The Ahmadabad, Tahmoures and Ghareh-toreh volcanoes are part of the volcanic centers located on the Qorveh-Bijar axis and constitute a part of the magmatic outcrops of the northern arm of the Sanandaj Sirjan Zone, Hamadan-Tabriz. Volcanic rocks have basaltic composition and show porphyritic, microlithic ...  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

Recognition of Qahr-Abad fluorite deposit occurrence based on REE data, southeast Saqqez, Kurdistan province

M Barati; A Akbarpour; E Fazel Tale; B Talai; M Moslehi

Volume 25, Issue 100 , September 2016, , Pages 155-164

https://doi.org/10.22071/gsj.2016.40727

Abstract
  The Qahr-abad fluorite deposit is located ~58 km southeast of Saqqez city, Kurdistan province. This deposit is developed as scatter lenses, veins, and veinlets (stockwork structure) within carbonate rocks. Violet, green and colorless fluorites are recognized. Quartz, dolomite, calcite and barite are ...  Read More

Arsenic source and mechanism of its releases into groundwater resources of Chahardoli plain, Kurdistan province

SH Safari; A Asghari Moghaddam; A Nadiri; K Siahcheshm

Volume 25, Issue 99 , June 2016, , Pages 261-270

https://doi.org/10.22071/gsj.2016.40917

Abstract
  Arsenic is one of the most toxic and dangerous soluble substances in natural water. It has long-term ill effects on human health. Arsenic-contaminated water resources have been reported from many parts of the world and Iran, particularly from the Kurdistan province in the west of the country. The aim ...  Read More

Separation and Classification of Veins Based on Au Grades by Using Concentration-Volume (C-V) Fractal Model in Qoloqoleh Gold Deposit, Kurdistan

H Dadashzadeh Ahari; P Afzal; N Rashidnejad Omran

Volume 24, Issue 94 , March 2015, , Pages 219-224

https://doi.org/10.22071/gsj.2015.42918

Abstract
  Separation of high grade from low grade veins and veinlets is very important operation in vein type deposits, especially in gold deposits because low value variations are very significant in their mineral exploration. In this paper, Concentration-Volume (C-V) fractal model was utilized for separation ...  Read More