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)
The Geometric, Kinematics and Deformation stage analysis of Fariman complex, NE Iran

Mojtaba Ershadinia; Farzin Ghaemi; Massoud Homam

Volume 32, Issue 4 , December 2022, , Pages 235-244


  The Fariman complex is located in the northeast of Iran and southeast of Mashhad, contains a variety of rocks from the Permian to the present era that have undergone several stages of deformation. In this paper, the structural geometry of faults and folds of the region is analyzed and based on it, the ...  Read More

Polyphase deformation in Bajgan metamorphic complex, southeastern Sanandaj-Sirjan termination zone

Mohammad Reza Sheikholeslami

Volume 32, Issue 4 , December 2022, , Pages 245-258


  Bajgan metamorphic complex is located at the southeastern termination of the Sanandaj-Sirjan zone in north of Makran. The metamorphic rocks, having igneous and sedimentary origins, are in tectonic contact with ophiolite assemblages and colored mélange. The rocks can be divided in four units based ...  Read More

Finite strain analysis and vorticity estimation in the metamorphic rocks around Mashhad

S. Dashti Chandanagh; M. R. Sheikholeslami; J. Taheri

Volume 27, Issue 107 , June 2018, , Pages 215-220


  This study was conducted to determine the deformation pattern of the Mashhad metamorphic rocks which results from the convergence between Turan and Central Iran plates and closure of Paleotethys Ocean during Early Cimmerian event. The results of 2D and 3D strain analysis show that the maximum deformation ...  Read More

Deformation and folding of mylonitic fabrics in Nowqan ductile shear zone: SW Golpaygan (Sanandaj - Sirjan zone)

M Mohajjel; S Houshmand, Ma

Volume 25, Issue 100 , September 2016, , Pages 91-98


  A NW-SE trending ductile shear zone has been generated in the metamorphic rocks of the southwest Golpaygan. Different pellitic and psammitic schists, meta-carbonates and igneous rocks were strongly deformed in this ductile shear zone and produced mylonites and ultra-mylonites. Structural analysis indicates ...  Read More

Deformation Microstructures and Conditions in Muteh-Golpayegan Metamorphic Core Complexes

E Moosavi; M Mohajjel

Volume 24, Issue 96 , September 2015, , Pages 33-40


  Two main metamorphic events have occurred within Muteh- Golpayegan metamorphic core complexes (including eastern and western complexes) in the Sanandaj-Sirjan zone. Some grain-scale deformations were also happened in relation to these metamorphisms which have produced  various deformation microstructures. ...  Read More

Microstructures and Petrography of Sikhoran Complex Serpentinites (SE of Kerman)

D Esmaeily; M Heidari; R Maghdour-Mashhour

Volume 24, Issue 95 , June 2015, , Pages 41-50


  The Sikhoran Mafic–Ultramafic complex is located in the Sanandaj – Sirjan structural zone. The complex consists of two main rock units: the lower harzburgite - porphyroclastic dunite unit and the upper layered gabbroic cumulate unit. The microstructures and geochemical evidences provided ...  Read More

Determining the Deformation Condition of the Mosha Fault Using Microstructure and Fluid Inclusion Data

M Ehteshami-Moinabadi; A Yassaghi

Volume 24, Issue 1393 , March 2015, , Pages 87-97


  The assessment of deformation condition of the Mosha Fault during Middle-Late Miocene carried out using microstructure and thermometry of fluid inclusions within calcite veins in the fault zone. Based on intra-crystalline deformation of quartz grains, calcite twin, and thermometry of primary fluid inclusions ...  Read More

The Effects of Mid-Cimmerian Event in North East of Iran

M.R Sheikholeslami

Volume 24, Issue 1393 , March 2015, , Pages 307-314


  The effects of the Mid-Cimmerian event in the BinaludMountains can be investigated in the Mashhad Phyllite around Mashhad and in the Aghdarband Group in the Aghdarband area. In the Eastern Binalud, this event acted in prehnite-pumpellyite to lower greenschist facies and influenced the Shemshak group, ...  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


  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

Slip Rate Partitioning in Active Faults System of Oblique Collision Zone of Arabia-Eurasia Plates based on Boundary Elements Method

A. Rastbood; B. Vosooghi

Volume 22, Issue 85 , December 2013, , Pages 15-26


  In this research, fracture mechanic concepts and dislocation modeling is used to examine the velocity field of GPS observables on the oblique collision zone of Arabia-Eurasia plates. For this purpose, the significant active faults in the study area were selected and proper boundary conditions applied. ...  Read More

Mechanism of Deformation and the Associated Microstructures in the Basic Mylonitic Rocks, NW Urumieh

K. Mohammadiha; M. Sabzehie; M. Ghahraie pour; J. Radfar

Volume 22, Issue 85 , December 2013, , Pages 47-54


  A large widespread outcrop of granitoid - mylonitic gabbros complexes is observed in northeastern part of Serow, NW Iran. Those rocks were considered as Precambrian gneiss and metamorphic rocks (Haghipour and Aghanabati, 1977), or alternatively, a complex of acidic to basic igneous rocks which have undergone ...  Read More

Study of Tectonic Plate Motions Contribution of the Middle-East Region in the GPS Velocity Field of Iranian CampaignGlobal Geodynamic Network

B. Vosooghi; A. Rastbood

Volume 21, Issue 84 , December 2012, , Pages 15-24


  In this research, the role of various existing tectonic plate and faulting motions in the middle-east region has been investigated on the geodetic data and its purpose is to estimate the contribution of these motions in the GPS velocity field of campaign global geodynamic network in the region of Iran ...  Read More

Petrogenesis Geochemistry and Role of Deformation on Ore Elements Distribution of Barika Ggold-Rich Massive Sulfide Deposit, East of Sardasht, Northwest of Sanandaj – Sirjan Zone.

H. A. Tajeddin; E. Rastad; A. Yagoubpour; M. Mohajjel

Volume 21, Issue 83 , December 2012, , Pages 141-156


  Barika deposit is the first and only recognized gold (and silver) rich – massive sulfide deposit in Iran which is located at 18 km east of Sardasht city, north western part of Sanandaj-Sirjan metamorphic zone. Rock units outcropped in this area are volcano sedimentary metamorphosed rocks in green ...  Read More

Estimation of Tectonic Slip Rate of Northern Band of Tehran by using GPS

Yahya Djamour; S. Hashemi Tabatabaei; M. Sedighi; H. R. Nankali

Volume 21, Issue 83 , December 2012, , Pages 211-218


  In previous decades, using traditional geodetic observations such as distance and angle measurements was prevalent in the earth surface displacement studies. After accessing to satellite positioning systems with a high precision ability such as GPS, we encountered to an upheaval in the earth surface ...  Read More

Relative Strain Pattern in Ali Abad Damagh Granitoid

R. Samanizadegan; M. Mohajjel

Volume 21, Issue 81 , December 2011, , Pages 69-74


  The Ali Abad Damag granitoid is intruded in Triassic-Jurassic schists located 35km south of Hamadan, southeast of the Alvand batholith. Northeast-southwest oriented mylonitised Ali Abad Damag granitoid has been intruded into a strike-slip dextral ductile shear zone. Abundant deformed enclaves exist in ...  Read More

Investigation of the Crustal Deformation in Iran Using Permanent GPS Station Time Series and Application of Noise Analysis

Sh. Roohi; Y. Jamour

Volume 18, Issue 70 , February 2009, , Pages 76-83


     Today, one of the main objectives of the geodesy is to identify the changes over time at the surface of the earth. It is critical to the design of the infrastructures to know these changes and to be able to predict their trends with time, as any ignorance could lead to incompensable losses ...  Read More

Study of Chemical and Structural Changes and Determination of Temperature in a Progressive Deformation: Evidences from Zarrin Shear Zone, Ardekan

F. Masoudi; M. Mohajjel; F. Shaker Ardekani

Volume 19, Issue 73 , January 2009, , Pages 11-16


  The Zarrin area in the north of Ardekan is the part of Central Iran Zone. Some homogenous parts of Zarrin granite located in the shear zone changed to mylonites and ultramylonites. Microstructural evidence and deformation investigation show that chemical and structural changes occurred during the progressive ...  Read More