Petrology and geochemistry of greenstones in Tiran area, West of Isfahan, Central Iran
Paper Details
Petrology and geochemistry of greenstones in Tiran area, West of Isfahan, Central Iran
Abstract
The studied area is located in west of Isfahan province. This area is the part of Sanandaj-Sirjan structural Zone in Central Iran. This area, contain of greenschist and greenstone rocks. These rocks have metmorphed in greenschist facies and belong to the age of Triassic-Jurassic. The Greenstone is mainly composed of plagioclase, amphibole, epidote and chlorite. Geochemical data shows that parent rocks are basalt to andesitic basalt composition with sub alkaline and tholeiitic trend. These results indicated that greenstone generated volcanic environment. Greenstone 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. 401–19.
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, Ghazi AM, Babaei A, Duncan R, Mahony J, Hassanipak A. 2003. New Ar-Ar age, isotopic, and geochemical data for basalts in the Neyriz ophiolite, Iran. Geophysical Research Abstracts 5 (12) 899.
Berberian M. 1995. Master ‘blind’ thrust faults hidden under the Zagros folds: Active basement tectonics and surface morphotectonics. Tectonophysics, 241. 193–224.
Davoudian AR, Khalili M, Noorbehesht I, Mohajjel M. 2005. The tectonometamorphic & magmatic evolution in the Shahrekord- Daran area (Sanandaj-Sirjan Zone, Iran). Ph.D. thesis. University of Isfahan. 217 p.
Eftekharnejad J. 1981, Tectonic division of Iran with respect to sedimentary basins. Journal of Iranian Petroleum Society, 82. 19–28 (in Farsi).
Fakhari MD, Axen G J, Horton B K, 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, 170–85. doi: 10.1016/j.tecto. 2007.11.064.
Floyd PA, Kelling G, Gokcen SL, Gokcen N. 1991. Geochemistry and tectonic environment of basaltic rocks from the Misis ophiolitic mélange, south Turkey. Chemical Geology, 89. 263-80.
Gasemi A, Hosaini M. 2007. 1:100000 Geological map of Chadegan. Geological survey and mineral explorations of Iran.
Irvine TN, Baragar WRA. 1971. A guide to chemical classification of common volcanic rocks. Canadian Journal of Earth Sciences, 8. 523-547.
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. Journal of Petrology, 27. 745-750.
Le Maitre RW, Bateman P, Dudek A, Kelle J, Lameyre Le Bas M. J, Sabine PA, Schmid R, Sorensen H, Streckeisen A, Woolley AR, Zanettin B. 1989. A classification of igneous rocks and glossary of terms. Blackwell. Oxford, 193 p.
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. Dextral transpression 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, TC5006 doi: 10.1029/ 2007TC002098.
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 Ore Genesis (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. p. 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, 627–50 doi: 10.1007/s00531-007-0269-9.
Ricou LE. 1974. L’étude géologique 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 p.
Sengor M.C, Natalin BA. 1996. Paleotectonics of Asia: Fragments of a synthesis. In Yin A. & Harrison T. M. (eds.) The Tectonic Evolution of Asia, p. 486– 640, Cambridge University Press, Cambridge.
Shafaii-Moghadam H, Rahgoshay M, Whitechurch H. 2007. The Naien-Baft ophiolites: An evidence of back-arc basin spreading in the active margin of the Iranian continent. Geophysical Research Abstracts, 9. 791 p.
Shahabpour J. 2007. Island-arc affinity of the Central Iranian Volcanic Belt. Journal of Asian Earth Sciences, 30. 652–65
Sun SS, McDonough 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. 42.Geology Society of London, 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. Report (37). Geological Survey of Iran, Tehran.
Taylor SR, McLennan SM. 1985. the Continental Crust: its Composition and Evolution. Blackwell, Cambridge. 312 p.
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.
Zahra Nasr-Esfahani, Ali-Khan Nasr-Esfahani, Zahra Hossein Mirzaee (2014), Petrology and geochemistry of greenstones in Tiran area, West of Isfahan, Central Iran; JBES, V5, N6, December, P407-415
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