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)
Structural study of Strait of Hormuz by using of 3D seismic data

Nayyer Bayeste Hasti; Hosein Motamedi; Mahmoud Almasian

Volume 31, Issue 3 , December 2021, , Pages 73-82


  This study has focused on the result of seismic data. The first stage of basin formation is the opening of Neo- Tethys Sea which is Simultaneous with Dashtak, Kangan and Khaneh kat Formation and after that on the early to middle Triassic sediments an unconformity that can be named as an expansion of ...  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

Petrology and geochemistry of intrusions in the Karaj-Taleghan axis (Central Alborz)

E. Keshtkar

Volume 27, Issue 105 , December 2017, , Pages 283-294


  The Intrusive bodies of the Karaj-Taleghan Axis, situated in the Central Alborz zone have lithological compositions including gabbro, monzogabbro, monzodiorite, monzonite andfelsic dikes of alkali feldspar syenite to syenite. Furthermore, they are accompanied by pyroclastic rocks of the Karaj formation, ...  Read More

Love wave tomography of the Makran subduction zone from ambient seismic noise

M Abdetedal; Z.H Shomali; M.R Gheitanchi

Volume 26, Issue 102 , March 2017, , Pages 147-152


  The Makran zone in southeastern Iran and southern Pakistan is the result of subduction of oceanic crust of the Arabian Plate under the Eurasian Plate. From seismic behavior point of view, there is a distinct segmentation between the western and eastern parts of the subduction zone. The western part of ...  Read More

Geochemistry and Petrogenesis of Andesitic-Basaltic Series in Siah-Cheshmeh Ophiolite, NW of Khoy

M. Poormohsen; M. Rahgoshay; I. Azadi; H. Shafaii Moghadam

Volume 20, Issue 77 , January 2010, , Pages 131-136


  The Siah-Cheshmeh ophiolites at the north-northwest part of the Khoy ophiolites show a dismembered pile of metamorphic units, mantle sequence, and basaltic-andesitic lavas associated with Late Cretaceous pelagic limestones and cherts.  The basaltic-andesitic lavas can be divided into alkaline and ...  Read More

History of Tsunami Occurrences and Assessment of Tsunami Generation Potential of Makran Subduction Zone

M. Heidarzadeh; M. Dolatshahi Pirooz; N. Zaker; M. Mokhtari

Volume 17, Issue 68 , February 2008, , Pages 150-169


  This research attempts to assess the history of tsunami occurrences and potential for tsunami generation at the southern coasts of Iran bordering the Indian Ocean by providing a list of historical tsunamis in this region and also, modeling of phases of tsunami generation and propagation. After the December ...  Read More

Geochemistry and Petrogenesis of an Alkaline-Calc Alkaline Volcanic Suite North Central Iran: The Role of Crystal Fractionation and Enrichment Processes in a Back-arc Environment

F. Tutti; S. Yazdani; K. Bazargani-Guilani

Volume 17, Issue 67 , February 2008, , Pages 210-223


        South Kahrizak volcanic rocks with Eocene age are located in the north part of Central Iran. These rocks are mainly composed of pyroclastics (tuff and ignimbrites) and lava flows (rhyolite, trachyandesite, basaltic trachyandesite and basalt). Petrographic evidence such as: zoning, ...  Read More