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
Deformation, alteration and fluid inclusion studies in the Mirgenaghshineh orogenic gold deposit, Northwest of Sanandaj-Sirjan Zone

Hossein Ali Tajeddin; Ebrahim Rastad; Abdolmajid Yaghoubpour; Mohammad Mohajjel

Volume 32, Issue 4 , December 2022, , Pages 319-336

https://doi.org/10.22071/gsj.2022.232116.1795

Abstract
  The Mirgenaghshineh gold deposit is located 43 km northwest of Saqqez in the northwestern part of the Sanandaj–Sirjan zone. The rocks in the deposit area predominantly consist of Precambrian volcanosedimentary sequences of schist, metasandstone, slate and metaandesite which are intruded by granitoid ...  Read More

Tectonics
The role of tectonics and magmatism in evolution of Takht-e-Suleiman Travertines, NW Iran

Masoud Biralvand; Mohammad Mohajjel; Mohammad Reza Ghassemi

Volume 28, Issue 112 , August 2019, , Pages 71-80

https://doi.org/10.22071/gsj.2017.79038.1064

Abstract
  In Takht-e-Suleiman region, travertine deposits are widespread in the footwall of the Chahartagh fault. Three factors played roles in forming travertine in this area: magmatism and high geothermal gradient, existence of carbonates between thermal source at depth and travertine springs on the ground, ...  Read More

Economic Geology
Thermometry and Origin of Mineralizing Fluid at Barika Gold Deposit, East of Sardasht

H Tajeddin; Ebrahim Rastad; Abdolmajid Yaghoubpour; Mohammad Mohajjel; Richard Goldfarb

Volume 28, Issue 111 , May 2019, , Pages 17-28

https://doi.org/10.22071/gsj.2017.77436.1029

Abstract
  Barika gold (and silver)-rich volcanogenic massive sulfide deposit is located 18 km east of Sardasht city in the northwestern of Sanandaj–Sirjan metamorphic Zone. The rocks in the vicinity of the Barika deposit predominantly consist of Cretaceous volcanosedimentary sequences of phyllite, slate, ...  Read More

Deformation Partitioning in Respons to Inclined Transpression Collision of Arabian Plate with West Alborz- Azarbayjan Block, The Khoy Shear Zone

H Haji Hosseinlou; A Solgi; M Mohajjel; M Pourkermani

Volume 24, Issue 1393 , March 2015, , Pages 181-196

https://doi.org/10.22071/gsj.2015.43398

Abstract
  The Khoy shear zone (KSZ) is exposed 130 Km north of Uremia and 650 km west of Tehran. Structural analysis in the Khoy Shear Zone (KSZ) indicated that they consist of NW-SE oriented various metamorphic rocks. They contain NW-SE trending moderate to steeply dipping mylonitic foliation to the NE. Stretching ...  Read More

Slip Sense Inversion on the Koushk-e-Nosrat Fault, North Saveh

K Orang; M Mohajjel; G.R Tajbakhsh

Volume 24, Issue 1393 , March 2015, , Pages 315-328

https://doi.org/10.22071/gsj.2015.43429

Abstract
  The kinematic analysis of the Koushk-e-Nosrat Fault (striking WNW-ESE) at north Saveh city indicates that since a time after early Miocene it has been inverted from dextral strike-slip (and reverse-dextral-oblique slip) to reverse-sinistral (and sinistral strike-slip( displacement. The Kinematic evidences ...  Read More

Role of Folding Mechanism in Generation of Gold Bearing Quartz Veins, Kharapeh Ore Occurrence, Pyranshahr, West Azarbaydjan

M Mohajjel; S Niroomand

Volume 24, Issue 93 , December 2014, , Pages 195-200

https://doi.org/10.22071/gsj.2014.43559

Abstract
  Structural analysis of folds in the Kharapeh area clears tow co-axial folding stages in the Cretaceous metamorphic rocks, in this part of the Sanandaj-Sirjan zone. First stage folds are tight to isoclinal recumbent folds that were co-axially refolded by second stage upright open to close folds. Normal ...  Read More

Structural Study and Influence of Thickness Change in the Qom Formation on Geometry of the Structures, Dokhan Area, West Saveh

S Khodaparast; M Mohajjel; S Haj-Amini

Volume 24, Issue 93 , December 2014, , Pages 235-244

https://doi.org/10.22071/gsj.2014.43563

Abstract
  The marine facies of the Qom Formation was deposited between two detritus continental facies of the Lower and Upper Red Formations. The type section of the Qom Formation was observed in Qom city, but its most thickness has been reported from the Dokhan area in west Saveh. Stratigraphic studies revealed ...  Read More

Deformation Stages of the Metamorphic Rocks in Hamedan Area and Their Relationship with Alvand Intrusive Pluton

L Izadi kian; M Mohajjel; S.A Alavi

Volume 23, Issue 92 , September 2014, , Pages 187-198

https://doi.org/10.22071/gsj.2014.43701

Abstract
  Hamedan area is in the NW of the Sanandaj-Sirjan Zone. Different types of plutonic rocks are outcropped in this area which in turn, surrounded by the various metamorphic rocks (regional and contact metamorphism). Four ductile deformation stages were recognized. Each of them is accompanied with formation ...  Read More

Structure of Shear Zone and Folds Interference Patterns in North Esfajerd, Sanandaj- Sirjan Zone

E Moosavi; M Mohajjel

Volume 23, Issue 91 , June 2014, , Pages 119-130

https://doi.org/10.22071/gsj.2014.43800

Abstract
  The North Esfajerd ductile shear zone is exposed in NE Golpaygan in the Sanandaj-Sirjan zone. The shear sense indicators are observed in the both outcrop and microscopic scales in this shear zone. These indicators are representing a NW striking dextral shear. The dynamic analysis and outcrop- scale indicators ...  Read More

Structure in the Chah Gaz Zn-Pb-Cu Massive Sulfide Deposit,South of Shahr-e -Babak

K. Orang; Mohammad Mohajjel; F. Mousivand; E. Rastad

Volume 22, Issue 86 , December 2012, , Pages 193-202

https://doi.org/10.22071/gsj.2012.54085

Abstract
  The Chah Gaz Zn-Pb-Cu volcanogenic massive sulfide (VMS) deposit is a polydeformed, polymetamorphosed ore body in southern part of the Sanandaj-Sirjan zone. The ore bodies are comprised predominantly of stratiform, tabular and lenticular massive sulfide lenses and are elongated in 0600-0700 orientation. ...  Read More

Role of Detachment Surface in Local Thickening and Shear Folding,Shurab Syncline, Southeast Qom

Mohammad Mohajjel; Z. Rahami; F. Shabani

Volume 21, Issue 82 , December 2011, , Pages 11-16

https://doi.org/10.22071/gsj.2011.54434

Abstract
  Lower-red, Qom and Upper-red Formations with Pliocene conglomerates were all folded in Shurab syncline containing northwest-southeast axial trace in southeast Qom city. In the southeastern part of the northern limb of the Shurab syncline, gypsum and marl elastic units of the Qom Formation have played ...  Read More

Structural Analysis of the Zagros Collision Zone, West Aligodarz

A. H. Sadr; Mohammad Mohajjel; A. Yasaghi

Volume 19, Issue 76 , January 2010, , Pages 149-158

https://doi.org/10.22071/gsj.2010.55674

Abstract
  The style of deformation changes from the hinterland (Sanandaj-Sirjan zone) to the foreland (Zagros) through the Zagros Orogen containing thick-skinned and thin-skinned deformation respectively. NW-SE trending thrust faults dipping to northeast have carried the older rock sequences to the surface. The ...  Read More