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)
Sr-Nd isotopic geochemistry and 40Ar-39Ar and Rb-Sr dating of Ghoshchi A2-type granites, N Uromiyeh, NW Iran

Sh. Shahabi; H. Shafaii Moghadam; Gh. Ghorbani

Volume 27, Issue 107 , June 2018, , Pages 27-40


  The Ghoshchi granitic rocks are located in at north of Uromiyeh city and are mainly composed of alkali-feldspar granites, granites and aplitic dykes. These samples belong to calc-alkaline to shoshonitic series and show Fe enrichment and are classified as A-type granites. Ghoshchi granites have high K2O+Na2O, ...  Read More

Petrology and geochemistry of the Aqkand acidic volcanic rocks and perlites, North of Zanjan

M Ebrahimi; H Kouhestani; M.A.A Mokhtari; M Feizi

Volume 26, Issue 101 , December 2017, , Pages 99-110


  The Aqkand area is located at 48 km north of Zanjan and is a part of the Tarom subzone within the Western Alborz-Azerbaijan structural zone. Acidic rocks exposed in this area consist of Oligocene rhyolite-rhyodacite, perlite, pitchstone and ignimbrite. Rhyolites and rhyodacites are exposed as domes and ...  Read More

Mineralogy and petrology of Chahargonbad granitoid batholith, southwest of Kerman

A. Ansari; S. J. Sheikh Zakariaee; S. Dargahi; M. Arvin

Volume 26, Issue 103 , June 2017, , Pages 107-118


  The Chargonbad batholith is located close to Sirjan and southeast of Urumieh-Dokhtar magmatic zone . This batholith is acidic to intermediate in composition and intruded into the Eocene volcanic rocks. The main volume of these rocks consisted of granodiorite and monzogranite, but it also consists of ...  Read More

The Role of Geological Conditions and Petrology of Formations on Excavation Hazards (Case Study of Ghomroud Tunnel)

V Joudaki; R Ajalloeian

Volume 25, Issue 97 , December 2016, , Pages 151-162


  In the present case study, a thick overburden above the Ghomroud tunnel locally reaching about 600 meters plus the existence of many fault/crushed zones along the tunnel led the full-face Tunnel Boring Machine (TBM) to encounter squeezing and collapsing of materials. In parts 3 and 4 of the tunnel, a ...  Read More

Geochemistry and Petrogenesis of the Adakites in the Southern Domains of the Northern Sabzevar Ophiolites; With Emphasis on Sr-Nd-Pb Isotopes Results

E Mohammadi; Gh Ghorbani; H Shafaii Moghadam

Volume 24, Issue 95 , June 2015, , Pages 51-62


  The studied volcanic rocks are situated in NW of the Sabzevar, mainly at southern domains of the Northern Sabzevar ophiolitic belt. Abundant rhyolitic domes (e.g., Sarough, Zard-Kuhi, Kuh-e-Sefid Mehr and Nahr domes) in the southern margin of the Davarzan-Sabzevar ophiolitic belt crosscut the above-mentioned ...  Read More

Study of Mo Mineralization in Gharehdagh (Ordobad)-Shivardagh Strip with Emphasis on Alteration, Petrology, and Geochemistry of Host Intrusive Bodies (Northwest of Iran)

Gh Sohrabi; M.R Hosseinzadeh; A.A Calagari; B Hadjalilu

Volume 24, Issue 95 , June 2015, , Pages 243-258


  The study area is located in north of East-Azarabaidjan (northwest of Iran). The most important intrusive bodies in the area include the Gharehdagh and Shivardagh batholiths and porphyry stocks of Sungun and Haftcheshmeh. The petrological and petrographical studies show that the composition of intrusives ...  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

The Mineralogy and Petrology of Kamtal Skarn (North of Kharvana, Eastern Azarbaijan)

M. A. A. Mokhtari; H. Moinvaziri; M. R. Ghorbani; M. Mehrpartou; G. Hosseinzadeh

Volume 22, Issue 86 , December 2012, , Pages 213-220


  Kamtal skarn zone is located in the 20km north of Kharvana in the Eastern Azarbaijan. Skarn-type metasomatic alteration is the result of Kamtal monzonitic intrusion into the Upper Cretaceous impure carbonates. Kamtal skarn include exoskarn and endoskarn zones. Exoskarn is the major zone that its thickness ...  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

Petrology, Geochemistry and Tectonomagmatic Setting of Kamtal Intrusion (North of Kharvana, Eastern Azarbaijan)

M .A. Mokhtari; H. Moein Vaziri; M.R. Ghorbani; M. Mehr Parto

Volume 18, Issue 71 , January 2009, , Pages 123-128


  Kamtal intrusion is located in East Azarbaijan province, NW of Iran, near the Armenia border. The Kamtal intrusion consist of an acidic part with monzogranitic composition and an intermediate- basic part which compositionally composed of monzonite, monzodiorite, quartz  monzonite, quartz monzodiorite ...  Read More

Petrology, Geochemistry and Tectonomagmatic Setting of the Silijerd Intrusion, Northwest Saveh

H. Ghasemi; A. Ramazani; A. Khanalizadeh

Volume 17, Issue 67 , February 2008, , Pages 68-85


          Silijerd intrusion with an age of Late Eocene – Oligocene (39.23.2 Ma) is located in Uromeyeh-Dokhtar magmatic arc, central Iran structural zone, northwest Saveh. This intrusion is composed of a continuous compositional range including: diorite/gabbro, ...  Read More

Petrology and Tectonic Setting of Lakhshak Granodiorite, NW of Zahedan, Iran

A. Kananian; M. Rezaei-Kahkhaei; D. Esmaeili

Volume 17, Issue 65 , March 2007, , Pages 126-143


       The Lakhshak granitoid pluton which is located at 10 km northwest of Zahedan, has intruded into the Eocene flysch sediments with an elliptical shape and NW-SE direction. This pluton after emplacement has been cut by numerous dykes with NE-SW trend. These dykes comprised about ...  Read More