The tectonic setting of Hassanabad-Shojaabad region (northeast Isfahan) based on the tectono-magmatic investigations

Authors

1 Associate Professor, Department of Geology, Faculty of Science, Payame Noor University, Tehran, Iran

2 PhD student in Geology, Petrology

Abstract

Hassanabad-Shojaabad region is located in Urmia-Dokhtar magmatic belt. Regarding the formation of this area, two theories of rifting and subduction have been proposed. In this article, data obtained from desert, petrography, geochemical and magmatic tectonic studies were combined and analyzed. Using several geochemical and magmatic tectonic charts, the type of rocks in the region and the magmatic series of intrusive and volcanic rocks were determined. The intrusive and volcanic rocks in Hassan Abad region are of calc-alkaline type and the result of subtraction of basic magma with the origin of lithospheric mantle, these rocks belong to the subduction tectonic environment in the final stages of expansion of Komani Island. Volcanic rocks and intrusive masses in Shujaabad area are of shoshonite type and are the result of tonalitic melting of the lower crust, these rocks belong to the tectonic environment of the continental arc margin. Therefore, the area under study has been inclined to pressure at the edge of subduction and back arc areas, where Hassan Abad is located in the area of the edge of subduction and Shoja Abad is located in the back arc area.

Keywords

References

Alavi, M., 1994. Tectonics of zagros orogenic belt of Iran, New data and interpretation. Tectonophysics 220, 211-238. https://www.doi.scirp.org/(S(vtj3fa45qm1ean45vvffcz55).
Alavi, M., 1980. Tectonostratigraphic evolution of the Zagros sides of Iran. Geology 8, 144 -149. https://doi. ui.adsabs.harvard.edu/abs.
Altherr, R., Holl, A., Hegner, E., Langef, C., Kreuzer, H., 2000. High-potassium, Calc-alkaline I-type plutonism in the European Variscides: Northern Vosges (France) and Northern Schwarzwald (Germany). Lithos 50, 51-73.https://www.doi.net/publication/248494831.
Berberian, F., Berberian, M., 1981. Tectonic-plutonic Episodes in Iran. In: Gupta H.K., Delany F.M., (Eds.), Zagros Hindukosh, Himalaya Geodynamic Evolution, American Geophysical Union. Washington DC, 5-32. https://www.doi.org/(S(351jmbntvnsjt1aadkposzje).
Berberian, M., King, G.C.P., 1981. Towards a Paleogeography and Tectonic Evolution of Iran. Canadian Journal of Earth Sciences 18, 210-265. https://doi.org/(S(vtj3fa45qm1ean45vvffcz55).
Condie, K.C., 1989. Geochemical Changes in basalts and andesites across the Archean- Proterozoic boundary: identification and significance. Lithos 23, 1-18. https://www.doi.org/(S(oyulxb452alnt1aej1nfow45).
Cox, K.G., Bell, J.D., Pankhurst, R.J., 1979. The interpretation of igneous rocks: George Allen and Unwin, London. Open Journal of Geology 6, 33-53
Darvishzadeh, A., 1991. Geology of Iran. Neda Publication, Tehran, 1-901. https://www.doi.org/(S(vtj3fa45qm1ean45vvffcz55).
Farhoudi, G., 1978. A comparison of Zagros geology to island arcs. Journal of Geology 86, 323–334. https:// doi/abs/10.1086/649694.
Ghasemi, A., Talbot, C.J., 2006. A new tectonic scenario for the Sanandaj–Sirjan Zone (Iran). Journal of Asian Earth Sciences 26, 683–693. https://doi.abs/pii/S1367912005000325.
Irvine, T.N., Baragar, W.R.A., 1971. A Guide to the Chemical Classification of the Common Volcanic Rocks. Canadian Journal of Earth Science 8, 523­548. https:// doi/10.1139/e71-055.
Michel, R., Emami, M.H., Amidi, S.M., 1984. Alkaline character of Eocene volcanism in the middle part of Iran and its geodynamic situation. Geologischen Rundschau 73, 917-932. https://sciexplore.ir/Documents/Details/130-804-632
Mokhtari, A., 2010. Petrographic and geochemical study of volcanic rocks in Marsar region (northeast of Isfahan) with emphasis on alteration processes, M.Sc. Thesis, Islamic Azad University, Khorasgan Branch, 154 pages. https://civilica.com/doc/87892.
Muller, D., Groves, D.I., 1997. Potassic Igneous Rocks and Associated Gold-Copper Mineralization. Lecture Notes in Earth Sciences 56, 238 p. https://doi.org/(S(lz5mqp453edsnp55rrgjct55).
Orozco-Esquivel, T., Petrone, C.M., Ferrari, L., TakahiroTagami, T., Manetti, P., 2007 .Geochemical and isotopic variability in lavas from the eastern Trans-Mexican Volcanic Belt: Slab detachment in a subduction zone with varying dip. Journal of South American Earth Sciences 93, 149- 174. https://www.doi.abs/pii/S0024493706001769.
Parsapour, A., Khalili, M., Noghreian, M., Makizadeh, M.A., 2004, Study of lithology and geochemistry of jarosite in Rangan (southwest of Ardestan). Iranian Journal of Crystallography and Mineralogy 12, 203- 214. https://ijcm.ir/article-1-742-fa.html.
Patino Douce, A.E., Beard, J.S., 1997. Effects of P, F(O2) and Mg/Fe Ratio on Dehydration Melting of Model Metagreywackes. Journal of Petrology 37, 999-1024. https://www.doi.net/publication/31082901.
Pearce, J.A., 1983. Role of the Sub­ continental Lithosphere in magma genesis at active continental margins. In: Hawkesworth, C.J., Norry, M.J., (Eds.), Continental Basalts and Mantle Xenoliths, Shiva Publishing Limited. Cheshire UK 8, 230­249. https://orca.cardiff.ac.uk/id/eprint/8626.
Pearce, J.A., Cann, J.R., 1973. Tectonic setting of basic volcanic rocks determined using trace element analyses. Earth and Planetary Science Letters 19, 290­300. https://www.sciencedirect.com/science/article/abs/pii/0012821X73901295.
Roberts, M.P., Clemens, J.D., 1993. Orgin of High- Potassium, Calc-Alkaline, I-type granitoids: Geology 21, 825-828. https://pubs.geoscienceworld.org/gsa/geology/article-abstract/21/9/825/186016. 
Sarjuqian, F., Canaanian, A., Asna Ashari, A., Ahmadian, J., 2006. Senometry of the intrusive mass of Dam Mountain, dikes and enclaves in it by uranium-lead method. Quarterly Journal of Earth Sciences 24, 145-154. https://www.gsjournal.ir/article_42422.html.
Stevenson, R., Henry, P., Carriepy, C., 1999. Assimilation fractional crystallization origin of Archean Sanukitoid Suite: Western Superior Province Canada, Precambrian. Journal of Geological Research 96, 83-99. https://www.sciencedirect.com/science/article/abs/pii/S0301926899000091.
Swinden, H.S., Jenner, G.A., Szybinski, Z.A., 1997. Magmatic and tectonic evolution of the Cambrian Ordovician Laurentian margin of Iapetus: Geochemical and isotopic constraints from the Notre Dame Subzone, Newfoundland Appalachians. In: Sinha, K., Whalen, J.B., Hogan J.P., (Eds.), The Nature of Magmatism in the Appalachian Orogen. Geological Society of American 191, pp. 367-395. https://doi..org/gsa/books/book/197/chapter-abstract/3793749
Temel, A., Gondogu, M.N., Gourgaud, A., 1998. Petrogical and geochemical characteristics of Cenozoic high - k calc - alkaline volcanism in konya, central Antolia, Turkey: Volcanology and Geothermal Research 8, 327-357. https://ui.adsabs.harvard.edu/abs/1998JVGR. 85.327T/abstract.
Whalen, J.B., McNicoll, V.J., van Staal, C.R., Lissenberg, C.J., Longstaffe, F.J., Jenner, G.A., Breeman, O., 2006. Spatial, Temporal and Geochemical Characteristics of Silurian Collision­ zone Magmatism, Newfoundland Appalachians: An example of a rapidly evolving magmatic system related to slab break­off. Lithos 89, 377­404. https://hero.epa.gov/hero/index.cfm/reference/details/reference_id/534844.
Advanced Applied Geology
Volume 13, Issue 2
June 2023
Pages 502-516

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