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 role of basement and young magmatism in epithermal gold and polymetallic mineralization in Takab-Mahneshan area, NW Iran

Mojgan Salehi Yazdi; Mansour Ghorbani; Nima Nezafati; Mansour Vossoughi Abedini

Volume 32, Issue 3 , September 2022, , Pages 145-158


  Takab-Mahneshan's metallogenic area is essential in gold mineralization, and it is a part of the northern Urmia-Dokhtar magmatic belt. The northern Urmia-Dokhtar has two distinctive features. It contains the Precambrian basement, and the young Mio-Pliocene magmatism rocks overlie its Precambrian basement. ...  Read More

Economic Geology
To view on evolution of primary texture of Aliabad chromite (NE Forumad), petrogenesis and tectonic setting

Kolsoum Fani Chenar; Mansour Ghorbani; Reza Kohansal; Jamshid Lotfian

Volume 31, Issue 1 , June 2021, , Pages 121-134


  Ali abad chromites mines (north east of Forumad) are as a part of chromites assemblage dependent on ophiolite Sabzevar that are located in NW Sabzevar city. Chromitites deposits in these mines have been located as irregular lenses and layered or banded along with pods of dunite in depleted harzburgite. ...  Read More

Tectono-sedimentary Setting of Maastrichtian Deposits along NW-SE Transect in Fars Area, SE Zagros

Somayeh Parham; Alireza Piryaei; Mansur Ghorbani; Seyyed Reza Moosavi Harami

Volume 30, Issue 117 , December 2020, , Pages 253-264


  Late Cretaceous in Zagros encompasses regional tectonics and caused foreland basin to form in northeast of the Arabian Plate. Salt tectonics is also locally affected this area. One of the time periods that can better picture this tectono-sedimentary evolution is Maastrichtian. In order to investigate ...  Read More

Mineral Chemistry and thermobarometry of biotite in Youseflo pluton,NW Iran

Elahe Namnabat; Mansour Ghorbani; Seyed hassan Tabatabaei

Volume 29, Issue 115 , June 2020, , Pages 87-96


  The Youseflo pluton, a part of Ahar - Arasbaran magmatic belt, is located in south east of Ahar city in north east of East Azarbayejan province of Iran. The pluton is mainly composed of quartz monzonite, granodiorite and granite, however, the major investigated rock is granodioritic in composition. Quartz, ...  Read More

Mineral chemistry and thermo-barometry of Ziyaran intrusion (West Taleghan)

E. Keshtkar; M. Ghorbani; J. Omrani

Volume 28, Issue 111 , May 2019, , Pages 271-280


  In the north of Ziaran village, a Sill olivine gabbro to monzodiorite composition is injected into the Karaj tuffs. The dominate minerals composition of plutonic rock are Plagioclase, Alkali feldspar, Pyroxene, Olivine and Biotite. Plagioclase composition is varies, and it’s changed from Labradorite ...  Read More

Copper mineralization, Alteration, zircon U-Pb geochronology and petrogenesis Delfard rocks (North West Jiroft)

J. Rasouli; M. Gorbani

Volume 28, Issue 110 , December 2018, , Pages 273-286


  Delfard area is located in the northwestern of Jiroft, formed the northwestern part of the Jabālbārez granitoid complex, in Uromiyeh- Dokhtar magmatic belt. The Jabālbārez granitoid complex has a wide range of rocks inclusive from diorite to alkali granite, which were formed by magmatic differentiation ...  Read More

Petrology, geochemistry and mineral chemistry of Parachan intrusive body (North of Karaj)

E. Keshtkar; M. Ghorbani; J. Omrani

Volume 27, Issue 107 , June 2018, , Pages 151-164


  A gabbro to monzonite sill is injected into the Karaj tuffs at the north of Parachan village, North of Karaj.. The main minerals of these rocks are plagioclase, pyroxene, K feldspar, olivine and biotite. Clinopyroxene mineral chemistry studies carried out on the intrusive bodies, indicate two types of ...  Read More

Review and comparing geochemistry of barren and productive hypabbysal intrusive bodies considering evidence for adakitic rocks in the Dehaj-Meiduk area (North Shahrbabak)

L. Berahmand; M. Ghorbani; S. M. Pourmaàfi

Volume 27, Issue 106 , March 2018, , Pages 193-202


  Dehaj-Meiduk area is located at North of Shahre-babak. There are nine porphyry intrusive bodies in this region, which include Meiduk, Parkam, Iejoo, Segino, Chah Firouzeh, Narkoh, Ayoub Ansar, Sara and Keder. Meiduk, Chah Firouzeh, Parkam, Iejoo and Segino are productive among them and Narkoh, Keder, ...  Read More

Petrology and petrogenesis of pillow lavas of Forumad area, Northeast Iran

R Kohansal; M Ghorbani; S.M Pourmafi; M Khalatbari Jafari; J Omrani

Volume 26, Issue 101 , December 2017, , Pages 147-158


  The Forumad ophiolite pillow lavas crop out at west of Sabzevar and at the periphery of north central Iran microcontinent.  These lavas include Upper Cretaceous pelagic limestone with microfossils and are classified in two Late Turonian- Santonian and Coniacian- Late Campanian groups. These basaltic ...  Read More

Geology and Geochemistry of Ophiolitic Extrusive Sequence in Forumad Area, Northeast Iran

R Kohansal; M Ghorbani; S.M Pourmoafi; M Khalatbari Jafari; J Omrani; S Zolfaghari; S Soleimani

Volume 25, Issue 97 , December 2016, , Pages 387-396


  Abstract The Forumadophiolitic rocks as a part of Iran marginal microcontinentophiolites have been situated in the western part of Sabzevarophiolite. Field study shows extrusive sequence in this area with Late Cretaceous in age. This sequence has included basaltic pillow lavas with radiolarian chert ...  Read More

Petrology of Intrusive Bodyes in Jebale-Barez Granitoid Complex (South East Jiroft)

J Rasouli; M Ghorbani; V Ahadnejad

Volume 24, Issue 96 , September 2015, , Pages 3-16


  Jebale-Barez granitoid complex is composed of intrusive bodyes included Mijan, Dareh hamzeh, Kerver and Hishin and is located In the southeastern province of Kerman on the lengths of the 57◦ 45 ' east to   58◦ 00' and Northern latitudes 28◦ 30' to 29◦ 00'.The petrologic composition ...  Read More

Determination of Porphyry Copper Deposit Locations Using Photo Lineament Factor in Northern Parts of the Dehaj-Sardoiyeh Belt

H Alizadeh; M Aryan; M Lotfi; M Ghorashi; M Ghorbani

Volume 24, Issue 94 , March 2015, , Pages 247-252


  The Dehaj-Sardoiyeh Belt, which is a part of the Urmia-Dokhtar Volcanic-Plutonic Zone, consists of several economic porphyry copper deposits. This area is located on the right lateral shear zone surrounded by the Rafsanjan fault in the north and the Shahr-e Babak fault in the south. In this research, ...  Read More

Petrogenesis of Akapol granitoidic intrusion Kelardasht area

M.A Sajadi Nasab; M Vosoughi Abedini; M.H Emami; M Ghorbani

Volume 23, Issue 91 , June 2014, , Pages 215-229


  The studied granitoidic intrusion with about 50 km2 area is located in the SW of Kelardasht, one of the regions in MazandaranProvince. It is one of the pluton masses of the Central Alborz structural zone. The mass has an age between 54±4 and 56±3 million years (late Paleocene to early Eocene) ...  Read More

Identification of Two Different Phases of Metamorphosed Granitoid in Kuh-Sefid Tootak Anticline Based on U-Pb Age Dating

Behnaz Hosseini; M. Ghorbani; S. M. Pourmoafi; A. R. Ahmadi

Volume 21, Issue 84 , December 2012, , Pages 57-66


  Kuh-Sefid anticline trends in NW-SE direction and locates in southern Sanandaj-Sirjan zone, and it contains a sequence of Paleozoic metamorphic rocks with facies ranging from greenschist to lower amphibolite. There are granitoid rocks emplaced in the core of this anticline, which based on their facies, ...  Read More

Brachiopods and Conodonts of Mobarak Formation (Early Carboniferous) in Kalariz Section, Northern Damghan

H. Gholamalian; M. R. Kebriaei zadeh; M. Ghorbani; S.M. Hosseini-Nezhad

Volume 19, Issue 74 , February 2010, , Pages 121-130


  Investigation on brachiopods and conodonts of Mobarak Formation in Kalariz section confirms the age of Early Tournaisian to Middle Viséan. Some species as Bispathodus aculeatus aculeatus, Bi. stabilis, Spinocarinifera nigra and Shumardella sp.in the lowest part of section show the Early Tournaisisan ...  Read More

Petrology of Quaternary Basalts of Tabas (East of Iran)

S. M. Hashemi; M. Emami; M. Vossoughi Abedini; M. Pourmoafi; M. Ghorbani

Volume 17, Issue 68 , February 2008, , Pages 26-39


  In southeastern Tabas there is a 400 square kilometer area of Quaternary basalts, which is geologically located in Lut zone. According to petrographic studies and EMPA analysis, the textures of these rocks are generally porphyric and some times aphyric. The phenocrysts of these basalts are generally ...  Read More

Magmatic Evolution in Quaternary Basaltic Rocks in Ghorveh – Takab Axis

S. Malecootyan; Sh. Hagh-Nazar; M. Ghorbani; M. H Emami

Volume 16, Issue 64 , March 2007, , Pages 166-178


       Petrological,geochemical and isotropic evidence of crustal contamination of the Quaternary basic rocks of Ghorveh-Takab axis is presented in this paper. These rocks are olivine basalt and basalt and they are plotted in the field of alkaline suites in geochemical diagrams. Some ...  Read More