Scientific Quarterly Journal of Geosciences

Scientific Quarterly Journal of Geosciences

Petrography, Geochemistry and Geocronology study of of Mesozoic Volcanism in Abarkoh Region, Sanandaj-Sirjan Zone

Document Type : Original Research Paper

Authors
Atefeh Nimroozi 1
gholamreza ghadami 2
Jamshid Hassanzadeh 3
Mohammad posti 2
1 Ph.D., Faculty of Sciences, University of Hormozgan
2 Assistant Professor, Faculity of Science, University of Hormozgan
3 Professor, Pasadena California Institute of Technology, California, America
10.22071/gsj.2019.140210.1510
Abstract
The study area is located near Abarkoh city and in Sanandaj –Sirjan zone. The volcanic activity of this region is in the form of dacite and rhyolite domes and lava flow and in the petrographic studies includes coarse plagioclase, quartz and hornblende. The volcanic rocks are considered as the separate units interlayered with calcareous sedimentary units. Geochemical classification confirms the rhyolitic and dacitic composition of the volcanic unites and show their belonging to the calc-alkaline magmatic series, which is the characteristic of the subduction tectonic setting. Significant characteristics observed in spider and multi-element diagrams, such as their enrichment in LREE, high LREE / HREE ratio, Nb and Ti trough, and enrichment of Pb, Rb and Th elements demonstrate the continental crustal contribution to the development of the volcanics and their formation in the subduction environment in the active continental margin setting. Tectonic setting diagrams confirm this idea and determined a continental arc setting for the volcanic rocks of the area. The dating studies on zircon minerals yield the age of about 17.7.2 ± 7.6 ma equivalent to Jurassic for this part of the Sanandaj-Sirjan zone, which matches with the subduction stage of the Neotethyan Ocean below the central Iran zone.
Keywords
Sanandaj-Sirjan
Abarkoh
Subduction
neotethys
Subjects
References
Alirezaei, S. and Hassanzadeh, J., 2012- Geochemistry and zircon geochronology of the Permian A-type Hasanrobat granite, Sanandaj-Sirjan belt: A new record of the Gondwana break-up in Iran. Lithos 151: 122-134. doi: 10.1016/j.lithos.2011.11.015.
Alric, G. and Virlogeux, D., 1977- Pétrographie et ge´ochimie des roches métamorphiques et magmatiques de la région de Deh Bid – Bavanat, Chaîne de Sanandaj-Sirjan, Iran, Thèse 3e`me cycle, université´ scientifique et médicale de Grenoble, France, 316 p. doi.10.22071/GSJ.2015.42068.
 Cox, K. G., Bell, J. D. and Pankhurst, R. J., 1979- The Interperatation of Ignouse Rock. George Allen and Unwin, London. 450 p. doi: 10.1016/j.jseaes.2011.09.020.
Elliott, T., Plank, T., Zindler, A, White, W. and Bourdon, B., 1997- Element transport from slab to volcanic front at the Mariana arc,. J Geophys Res, v. 102, NO. B7, p. 14,991-15,019 .doi.org/10.1029/97JB00788.
Helvacı, C., Ersoy, E. Y., Sözbilir, H., Erkül, F.,Sümer, Ö. and Uzel, B., 2009- Geochemistry and 40Ar/39Ar geochronology of Miocene volcanic rocks from the Karaburun Peninsula:Implications for amphibole-bearing lithospheric mantle source, Western Anatolia.Journal of Volcanology and Geothermal Research, v.185(3) ,p.181–202.doi.org/10.1016/j.jvolgeores.2009.05.016.
Hoang, N., Itoh, J. and Miyag,i I, 2011- Subduction components in Pleistocene to recent Kurile arc magmas in NE Hokkaido,Japan, Journal of Volcanology and GeothermalResearch, v.200(3-4), p.255-266.doi.org/10.1016/j.jvolgeores.2011.01.002.
Irvine, T. N. and Baragar W. R. A., 1971- A guide to the classification of the common volcanic rocks, Canadian Journal of Earth Sciences, p.8, 235-458.doi:
Jensen, L. S. and Pyke, D. R., 1982- Komatiites in the Ontario portion of the Abitibi belt, in Arndt, N. T., and Nisbet, E. G., eds., Komatiites: London, George Allen and Unwin, p. 147–157 doi: /abs/10.1139/cjes-2015-0067
Le Bas, M. J., Le Maitre, R. W., Streckeisen, A. and Zanettin, B., 1986- A chemical classification of volcanic rocks based on the total alkali-silica diagram, Journal of Petrology,v. 27(3), p.745-750. doi.org/10.1093/petrology/27.3.745.
Monfaredi, B., Masoudi, F., Tabbakh Shabani, A. A, 2009- magmatic interaction as recorded in texture and composition of plagioclase phenocrysts from the sirjan area, urumiehdokhtar magmatic arc, iran, journal of sciences, islamic republic of iran, v. 20 (3),p. 243-251. doi.org/10.22067/econg.v6i2.24938.
Nagudi, N., Koberl, C. and Kurat, G., 2003- Petrography and geochemistry of the Sigo granite, Uganda and implications for origin. Journal of African Earth Sciences, V. 36, p. 1-14.doi:10.1016/S0899-5362(03)00014-9
Pearce, J. A. and Norry, M, 1979- Petrogenetic implications of Ti, Zr, Y and Nb variations in volcanic rocks. Contributions to Mineralogy and Petrology, v.69, p.33–47. doi: 10.1007/BF00375192.
Pearce, J. A. and Peate, D. W, 1995- Tectonic implications of the composition of volcanic arc magmas, Annual Review of Earth and Planetary Sciences, v. 23,p 251–285. doi.org/10.1146/annurev.ea.23.050195.001343.
Pearce, J. A. and Parkinson, I. J., 1993-Trace element model for manle melting: application to volcanic arc petrogenesis. In: Prichard, H.M., Alabaster, T., Harris, N.B., Neary, C.R. (Eds.), Magmatic Process and Plate Tectonics, Special Publication Geological Society, London p.373-403.doi: 10.1144/GSL.SP.1993.076.01.19; Corpus 
Richards, J. P., 2011- High Sr/Y arc magmas and porphyry Cu±Mo±Au deposits: Just add water. Economic Geology, 106: 1075-1081. doi: 10.2113/econgeo.106.7.1075.
Rollinson, H. R., 1993- Using geochemical data. Longman Scientific and Technical, 20.
Rudnick R. L. and Gao, S., 2003- The composition of the continental crust, In, Rudnick, R,L, Ed, The Crust, Elsevier-Pergamon, Oxford,1-64.doi: 10.1016/B0-08-043751-6/03016-4
 Saunders, A. D., Storey, M., Kent, R. W. and Norry, M. J., 1992- Consequences of plume–lithosphere interactions. In: Storey, B.C., Alabaster, T., Pankhurst, R.J. (Eds.), Magmatism and the Causes of Continental Breakup, v. 68, Geological Society of London Special Publication, London,p. 41 – 60.- doi.org/10.1144/GSL.SP.1992.068.01.04.
Schandl, E. S. and Gorton, M. P., 2002- Appplication of high field strength elements to discriminate tectonic setting in VMS environments, Economic Geology, v.97(3), p. 629-642. doi.org/10.2113/gsecongeo.97.3.629.
Schmitt, A. K., Grove, M., Harrison, T. M., Lovera, O. M., Hulen, J., Waters, M., 2003- The Geysers–Cobb Mountain magma system, California (Part 1): U-Pb zircon ages of volcanic rocks, conditions of zircon crystallization and magma residence times, Geochimica et Cosmochimica Acta v.67,p. 3423–3442. doi:10.1016/j.lithos.2005.05.005.
Srivastava, R. K. and Singh, R. K., 2004- Trace element geochemistry and genesis of Precambrian sub-alkaline mafic dikes from the central Indian craton evidence for mantle metasomatism. Journal of Asian Earth Sciences, 23: 373-389doi: 10.1016/S1367-9120(03)00150-0 DOI: 10.1016/S1367-9120(03)00150-0
Stern, R. J., 2002- Subduction zones, Reviews of Geophysics, v.40 (4),p.1-38. doi.org/10.1029/2001RG000108
Stocklin, J., 1968- Structural history and tectonics of Iran: a review. American Association of Petroleum Geologists Bulletin, v.52(7), p .1229-1258. doi: 10.1306/5D25C4A5-16C1-11D7-8645000102C1865D.
Sun, S. S. and McDonough, W. F., 1989- Chemical and isotopic systematic of ocean basalts:implications for mantle composition and process. In: A.D. Saunders and M.J. Norry (Editors.), Magmatism in the Ocean Basins.Geological Society v.42, London, p. 313–345. doi: 10.1144/GSL.SP.1989.042.01.19.
Taraz, H., 1974- Geology of the Surmaq-dehbid Area, Abadeh Region, Central Iran. Internal report, 138. Geological Survey of Iran, Tehran, p. 137.
Tatsumi, Y., Hamilton, D. L., Nesbitt, R. W., 1986- Chemical characteristics of fluid phase released from a subducted lithosphere and origin of arc magmas: Evidence from high pressure,Journal of volcanology and geothermal research, V 29, P. 293-309. doi: 10.1016/0377-0273(86)90049-1.
Scientific Quarterly Journal of Geosciences
Volume 30, Issue 117
Autumn 2020, Vol. 30, Issue 3, Serial No. 117
Autumn 2020
Pages 91-100