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

Petrography and Petrology of early Paleozoic bimodal metavolcanic rocks in North of Maku, North West of Iran

Mohsen Moayyed; Farzaneh ValinasabZarnagh; Ahmad Jahangiri; Hosein Azizi

Volume 30, Issue 118 , January 2021, , Pages 109-122


  there are Discontinuous outcrops of volcanic rocks in the northern regions of Maku. The volcanic rocks were metamorphosed in the green schist facies. These volcanic complex were bimodal and compose of acidic and basic lava and pyroclastic rocks. The lava of this unit covers the Cambrian and equivalent ...  Read More

Evidence for Pan-African basement in Ghalghachi Leucogranite (west the Urmia Lake) with using U-Pb zircon dating and whole-rock Sm-Nd and Rb-Sr isotopic analyses

M. Asadpour; S. Heuss

Volume 28, Issue 109 , September 2018, , Pages 211-220


  The Ghalghachi leucogranite intrussion with approximately 2 Km2 is located in west Urmia Lake and 70 Km north of Urmia city. This intrussion in form of small stock has intruded into Precambrian metamorphic rocks including gneiss, schist and amphibolite. This area is part of the Sanandaj-Sirjan zone in ...  Read More

Using Clinopyroxene Composition in the Petrogenesis of the Gabbros from Misho Mountain in SW Marand- Northwestern Iran

Z Azimzadeh; A Jahangiri; E Saccani; Y Dilek

Volume 24, Issue 94 , March 2015, , Pages 61-72


  The Misho gabbroic massif with an east- west trend, 30 Km length and 7 Km wıdth is penetrated in the Infra-Cambrian Kahar  formation. The micro-gabbroic dykes have cut this intrusive massif. Gabbros have homogenous compositions and major phases are plagioclase and pyroxene and minor minerals are ...  Read More

Geology and Petrology of the Soltan Maydan Basaltic Complex in North-Northeast of Shahrud, Eastern Alborz, North of Iran

M Derakhshi; H Ghasemi; T Sahami

Volume 23, Issue 91 , June 2014, , Pages 63-76


  The Soltan Maydan Basaltic Complex indicates the most important, thickest, and most voluminous early Paleozoic magmatic activity in Iran outcropping in the eastern Alborz structural zone, in the north-northeast of Shahrud. This complex overlies the late Ordovician Ghelli Formation and is overlain by ...  Read More

New Insight to Paleogeography and Structural Evolution of the Alborz in Tethyside

H. Nazari; J-F. Ritz; S. Oghbaee

Volume 16, Issue 64 , March 2007, , Pages 38-53


  Development and evolution of Tethys basins during geological history from the Precambrian to Paleogene has been considered by many geoscientists.  The first sign of various basins propagation of Tethys which resulted in separation of supercontinents, ancient lands (such as Eurasia, Gondwana) and ...  Read More

Environmental Interpretation of Kashafrud Formation (Upper Bajocian- Lower Bathonain) based on Ichnofossils, NE Iran

M. R. Poursoltani; R. Moussavi Harami; Y. Lasemi

Volume 17, Issue 65 , March 2007, , Pages 170-194


        The KopetDaghBasin of northeast Iran formed in the NeotethysOcean after the closure of Paleotethys in the south of Turan plate. A thick sequence of Jurassic to Miocene sediments has been deposited in this basin without any major break. The siliciclastic Kashafrud Formation ...  Read More