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)
Investigations on temperature and pressure of formation of schists and gneisses of the Allahyarlu complex, NW Iran

Zohreh Salimi; mohsen moazzen; Robab hajialioghli

Volume 29, Issue 116 , August 2020, , Pages 35-48


  The ophiolitic-metamorphic complex of Allahyarlu, attributed to pre-Cretaceous, is exposed at the core of Allahyarlu anticline in NW Iran and NE of Meshginshahr. The metamorphic rocks are important constituents of this complex. These rocks include garnet schist, garnet gneiss, amphibolite, marble, associated ...  Read More

Mineralogy, texture and retrograde P-T evolutions of the granulites during cooling and exhumation, NE of Takht-e-Soleyman metamorphic complex (NW Iran)

R. Hajialioghli; M. Moazzen

Volume 27, Issue 105 , December 2017, , Pages 105-116


  The Takht-e-Soleyman metamorphic complex is located at NE of Takab town, West Azerbaijan province. This complex having Precambrian-Cambrian age has been formed from low to high metamorphic rock types. The retrograde granulites are subject of this project. The retrograde metamorphic assemblages of the ...  Read More

Quaternary state of stress in the Mahneshan‌–‌Mianeh sedimentary basin, NW Iran

M Aflaki; E Shabanian; Z Davoodi

Volume 26, Issue 102 , March 2017, , Pages 247-256


  Mahneshan­­–­­Mianeh Cenozoic basin, in southern part of SE­–­­termination of North Tabriz Fault, is located between two distinct NW and N Iran tectonic domains affected by different Quaternary tectonic and stress regimes, with a transitional boundary. Determining ...  Read More

Petrology and geochemistry of amphibolites from Southeast of Siyah-Cheshmeh, NW Iran

R Hajialioghli; H Fakharinezhad; M Moazzen

Volume 25, Issue 99 , June 2016, , Pages 111-122


  The study area (Siyah-Cheshmeh), is located to the south Maku in the Khoy-Maku ophiolite zone. The various outcropped metamorphic rocks include serpentinites, metabasites (green schist, amphibolite) and meta-pelitic rocks (slate, mica-schist) with interlayers of marble and quartzite. The amphibolites ...  Read More

Modeling the earthquake cycle of the North Tabriz fault by using GPS data

M Talebian; M Shahpasand-Zadeh; Y jamour; M.R Sepahvand; A Arabpour

Volume 25, Issue 99 , June 2016, , Pages 169-178


  Determination of inter-seismic deformations such as fault slip-rate can usually be achieved by using geodetic observations, earthquake geology and paleo-seismology, as well as mechanical, empirical and numerical modeling. In these models, combination of the fault seismic parameters and the GPS data can ...  Read More

Investigation of the Mechanism and Neotectonics of the Siah Cheshmeh- Khoy Fault Zone

M Roustaee; B Zamani; P Navabpour; M Moayyed

Volume 24, Issue 96 , September 2015, , Pages 221-234


  Siah Cheshmeh- Khoy fault system is one of the principal faults in NW of Iran and that its right- lateral strike- slip activity has reported for different segments of this fault zone. Landsat 7 satellite images of the area, confirm the right- lateral strike- slip motion of this fault system by deflected ...  Read More

Investigation of Magmatic Processes in the Quaternary Volcanism in NW of Ahar: a Geochemical and Isotopic Study

R Dabiri; M.H Emami; H Mollaei; M Ghaffari; M Vosougi Abedini; N Rashidnejad Omran

Volume 23, Issue 90 , March 2014, , Pages 55-62


  Quaternary volcanic rocks are widely developed in NW of Ahar, NW Iran. Based on geochemical data, these rocks mainly consist of alkali basalts, trachybasalts, basaltic trachyandesites and trachyandesites. The major- and trace-element chemistry indicates that the lavas are dominantly alkaline in character. ...  Read More

New Paleoseismological Results within the Overlap Zone of NW and SE Segments of North Tabriz Fault (NW Iran)

A. Fathian Baneh; S. Solaymani Azad; H. Nazari; M. Ghorashi; M. Talebian

Volume 22, Issue 86 , December 2012, , Pages 3-12


  Tabriz city, the most highly population city of NW Iran, is located close to the North Tabriz Fault (NTF). This 150 km right-lateral strike-slip fault consists of two major fault segments arranged in right-stepping pattern. A pull-apart basin has been formed within the overlap zone of these fault segments ...  Read More

Release of Potentially Toxic Elements during Weathering of the Black Shales from Aq-Darreh Bala Abandoned Antimony Mine Area, Takab, NW Iran

Soroush Modabberi; Y. Rahimsouri; A. Yaghubpur; S. Alipour

Volume 21, Issue 84 , December 2012, , Pages 139-148


  Black shales of the abandoned antimony mine of Aq-Darreh Bala Village in northwest of Takab city, northwest Iran, contain high concentrations of toxic elements, especially As (4403–11883 ppm), Sb (405–1022 ppm) and Hg (30–58 ppm).  Enrichment factor calculations revealed that some ...  Read More

Post-Collisional Shoshonitic, C-type Adakitic and Lamprophyric Plutonism in the Khankandi Pluton, Arasbaran (NW Iran)

M. Aghazadeh; M. H. Emami; H. Moin Vaziri; N. Rashidnezhad Omran; A. Castro

Volume 20, Issue 78 , December 2011, , Pages 173-188


  Khankandi pluton is located in northwestren part of Iran, within Garadagh (Arasbaran) - south Armenia block. Main units of the pluton are monzonite and granodiorite associated with minor gabbro and lamprophyric and dacitic dykes. Granodioritic plutonism is followed by gabbro and monzonite. Lamprophyric ...  Read More

Trace Fossils of Cretaceous Flysch Sediments from Abshar-e Asyab Kharabeh, Jolfa Area, NW Iran

Nasrollah Abbassi

Volume 20, Issue 77 , January 2010, , Pages 9-16


  Cretaceous flysch deposits of the Abshar-e Asyab Kharabeh (30 meters) in west of Siah-rud village in the Jolfa area, NW Iran, consist of conglomerate, sandstone, siltstone and mud- or marlstone layers, which mainly belong to A, B, D and E divisions of Bouma sequence. A divers trace fossils preserved ...  Read More

Petrology and Geochemistry of Shah Ashan Dagh Mafic Rocks and A-type Granite in NE of Khoy, NW Iran

M. Advay; A. Jahangiri; M. Mojtahedi; J. Ghalamghash

Volume 20, Issue 77 , January 2010, , Pages 83-90


  The study area as a part of Maku-Tabriz zone is located in about 20 km NE of Khoy, NW Iran. Shah Ashan Dagh granite covers about 60 km2 of the area and emplaced into Permian host rocks and covered by Oligo-Miocene sedimentary rocks (Qom Formation). The Shah Ashan Dagh intrusive rocks composed of gabbro ...  Read More