Petrogenesis of mafic meta volcanic rocks in NW Isfahan, Central Iran
Paper Details
Petrogenesis of mafic meta volcanic rocks in NW Isfahan, Central Iran
Abstract
The study area is located in west of Isfahan, Shahrekord-Dehsard terrene. This area is the part of Sanandaj-Sirjan structural Zone. In this area, metamorphosed igneous outcrop contain of greenschist and meta volcanic rocks. These rocks have metmorphed in greenschist facies and belong to the age of Triassic- Jurassic. The Meta volcanic is mainly composed of plagioclase, amphibole, epidote and chlorite. Geochemical data shows that parent rocks are basalt to andesitic basalt composition with subalkaline and tholeiitic trend. In the REE and trace elements spider diagrams, these similar to MORB and adapted with E-MORB. These results indicated that meta volcanic generated back arc basin volcanic subduction environment. Meta volcanic in Sahrekord – Dehsard terrene shows remnants of Neo-Tethyan oceanic lithosphere with back arc basin environment that was subducted and uplifted to the surface.
Agard P, Omrani J, Jolivet L, Mouthereau F. 2005. Convergence history across Zagros (Iran): Constraints from coalitional and earlier deformation. International Journal of Earth Sciences. 94, 401–419.
Alavi M. 1994.Tectonics of the Zagros Organic belt of Iran: New Data & Interpretations Tectonophysics. 229, 211-238.
Alavi M. 2004. Regional stratigraphy of the Zagros fold-thrust belt of Iran and its proforeland evolution. American Journal of Science. 304, 1-20.
Arfania R, Shahriari S. 2009. Role of southeastern Sanandaj-Sirjan Zone in the tectonic evolution of Zagros Orogenic Belt, Iran.Journal of Island Arc. 18, 555–576.
Babaie HA, GhaziA M, Babaei A, Duncan R, Mahony J, Hassanipak A. 2003. New Ar-Ar age, isotopic, and geochemical data for basalts in the Neyrizophiolite, Iran. Geophysical Research Abstracts. 5, 812-899.
Berberian M. 1995. Master ‘blind’ thrust faults hidden under the Zagros folds: Active basement tectonics and surface morphotectonics. Tectono physics. 241, 193–224.
Davoudian AR, Genser J, Dachs E, Shahanian N. 2008. Petrology of eclogites from north of Shahrekord, Sanandaj-Sirjan zone, Iran.
Davoudian AR, Khalili M, Noorbehesht I, Mohajjel M. 2005. The tectonometamorphic & magmatic evolution in the Shahrekord- Daranarea (Sanandaj-Sirjan Zone, Iran). Ph.D. thesis. University of Isfahan. 217.
Eftekharnejad J. 1981.Tectonic division of Iran with respect to sedimentary basins. Journal of Iranian Petroleum Society. 82, 19–28 (in Farsi).
Eliasi N, Emami N, Nasr-Esfahani AK, Vahabi Moghaddam B. 2011.Mineralogy and determination of tectono magmatic setting of sub volcanic rocks in North of Shahrekord by using clinopyroxene mineral chemistry. 19(2), 207-218.
FakhariM D, Axen GJ, Horton BK, Hassanzadeh J, Amini A. 2008.Revised age of proximal deposits in the Zagros foreland basin and implications for Cenozoic evolution of the High Zagros. Tectonophysics, 451, 170–185.
Fitton JG, James D, Leeman WP. 1991. Basic magmatism associated with late Cenozoic extension in the western United States: compositional variations in space and time. Journal of Geophysical Research. 96, 13693-13711.
Floyd PA, Kelling G, Gokcen SL, Gokcen N. 1991.Geochemistry and tectonic environment of basaltic rocks from the Misisophiolitic mélange, south Turkey. Chemical Geology. 89, 263-280.
Gasemi A, Hosaini M. 2007. 1:100000 Geological map of Chadegan. Geological survey and mineral explorations of Iran.
Ghasemi A, Talbot CJ. 2006. A new tectonic scenario for the Sanandaj-Sirjan Zone (Iran). Journal of Asian Earth Sciences. 26, 683–693.
Hasse KM, Muhe R, Stoffers P. 2000. Magmatism during extension of the lithosphere: geochemical constrains from lavas of the Shaban deep. Northern Red Sea Chemical geology.166, 225-239.
Irvine TN, Baragar WRA. 1971. A guide to the chemical classification of the common volcanic rocks. Canadian Journal of Earth Science. 8, 523-548.
Kuno H. 1961. High Alumina Basalt. Journal of petrology. 1, 121-145.
Le Bas MJ, Le Maitre RW, Streckeisen A, Zanetin B. 1986. A chemical classification of volcanic rocks based on the total alkalies- silica diagram. J. Petrol. 27,745-750.
Mohajjel M, Fergusson CL, Sahandi MR. 2003.Cretaceous-Tertiary convergence and continental collision, Sanandaj- Sirjan Zone, Western Iran. Journal of Asian Earth Sciences. 21,397-412.
Mohajjel M, Fergusson CL. 2000. Dextraltrans-pression in Late Cretaceous continental collision, Sanandaj – Sirjan zone, Western Iran. Journal of Structural Geology. 22 (8), 1125-1139.
Mouthereau F, Tensi J, Bellahsen N, Lacombe O, De Boisgollier T, Kargar S. 2007. Tertiary sequence of deformation in a thin-skinned/thick-skinned collision belt: The Zagros Folded Belt (Fars, Iran). Tectonics. 26.
Nasr-Esfahani AK, Ziaei HR. 2007. Using multivariable statistical methods to separation and detection of lithologic units in ETM+ satellite images, case study: outcrops in the south of Ab-Ponehvillage, Tiran (west Isfahan). JSIAU. 17(65), 27-42.
Pearce JA, Cann JR. 1973. Tectonic setting of basic volcanic rocks determined using trace element analyses. Earth and Planetary Science Letters. 19, 290-300.
Pearce JA, Gale GH. 1977. Identification of ore deposition environment from trace element geochemistry of associated igneous host rocks. In Volcanic Processes in OreGenesis (Ed. M. J. Norry), Geological Society of London. 7.
Pearce JA, Norry MJ. 1979. Petrogenetic implication of Ti, Zr, Y and Nb variation in volcanic rocks. Contribution to Mineral and Petrology. 69, 33-47.
Reuter M, Piller WE, Harzhauser M. 2007. The Oligo-Miocene Qom Formation (Iran): Evidence for an early Burdigalian restriction of the Tethyan Seaway and closure of its Iranian gateways. International Journal of Earth Science. 98, 627–650.
Ricou LE. 1974. L’étudegéologique de la région de Neyriz (Zagros iranien) etl’évolution des Zagrides. Thesis. Université Paris-Sud.Orsay.
Rollinson H. 1993. Using geochemical data: evaluation, presentation, interpretation. Longman Scientific and Technical. 352.
Sengor MC, Natalin B A. 1996.Paleotectonics of Asia: Fragments of a synthesis. In Yin A. & Harrison T. M. (eds.) The Tectonic Evolution of Asia. 486–640.
Sepehr M, Cosgrove JW. 2004. Structural framework of the Zagros Fold-Thrust Belt, Iran Mar Petrol. Geology. 21, 829-843.
Shafaii-Moghadam H, Rahgoshay M, Whitechurch H. 2007. The Naien-Baftophiolites: Anevidence of back-arc basin spreading in the activemargin of the Iranian continent. Geophysical Research Abstracts. 9, 791.
Shahabpour J. 2007.Island-arc affinity of the Central Iranian Volcanic Belt. Journal of Asian Earth Sciences. 30, 652–659.
Sun SS, Mc Donough WF. 1989.chemical and isotopic systematic of oceanic basalts: implication for mantle composition and processes. In: Sunders, A. D. Norry, M.J(Eds.), Magmatic in Oceanic Basins, Special Publication. Geology Society of London. 42, 313–345.
Sun SS, Nesbitt RW. 1978. Geochemical regularities and genetic significance of ophiolitic basalts. Geology, 6, 689-693.
Taraz H. 1974. Geology of the Surmagh- Deh Bid Area, Abadeh Region, Central Iran. Geological Survey of Iran. Tehran. 37.
Taylor SR, Mc Lennan SM. 1985. The Continental Crust: its Composition and Evolution. Blackwell, Cambridge. 312.
Wilson M. 1989. Igneous Petrogenesis. Unwin Hyman. London. 1– 46.
Winchester JA, Floyd PA. 1977.Geochemical discrimination of different magma series and their differentiation products using immobile elements. Chemical of Geology. 20, 325-343.
Woodhead J, Eggins S, Gamble J. 1993. High field strength and transition element system in island arc back-arc basin basalts: evidence for multi-phase melt extraction and depleted mantle wedge. Earth and Planetary Science Letters. 114, 491-504.
Zohreh Hossein Mirzaee, Ali-Khan Nasr-Esfahani (2015), Petrogenesis of mafic meta volcanic rocks in NW Isfahan, Central Iran; JBES, V6, N1, January, P642-653
https://innspub.net/petrogenesis-of-mafic-meta-volcanic-rocks-in-nw-isfahan-central-iran/
Copyright © 2015
By Authors and International
Network for Natural Sciences
(INNSPUB) https://innspub.net
This article is published under the terms of the
Creative Commons Attribution License 4.0