Hossein SHEIKHI KARIZAKI, Mohsen POURKERMANI, Afshin ASHJA ARDALAN, Roghieh BOZORG SEGHINSARA, Mohssen MOAZZEN

JURA YAŞLI LİSAR GRANİTİNİN (TALİŞ DAĞLARI, KUZEY İRAN) TÜM KAYAÇ JEOKİMYASI VE TEKTONİK ÖZELLİKLERİ

Kuzey İran’daki Geç Jura yaşlı Lisar graniti, Üst Kretase kumlu kireçtaşları ile bindirme ve doğrultuatımlı faylar aracılığıyla tektonik ilişkili olup, Elburz kuşağının batıdaki devamı olan Taliş Dağı’ndaPaleosen yaşlı polijenik konglomeralar tarafından örtülmektedir. Granite ait kayaç numuneleri pemberenkli ve iri kristalli olup; K-feldispat, kuvars, plajiyoklaz, biyotit ve amfi bol içermektedir. Kayaçlariçerisindeki boşlukları dolduran çok sayıdaki silikaca zengin aplitik damarların işaret ettiği şekilde,Lisar granitinin genişlemeli bir ortamda yerleşmiş olması muhtemeldir. Granit örnekleri orta düzeydealtere olup; feldispatlar serizite, kil mineralleri ve biyotitler ise kısmen klorite dönüşmüştür. Lisar granitiyüksek potasyumlu bir magmadan türemiş olup, A tipi karakter sunmakta ve A2 alt grubundandır. Graniteait kayaç örnekleri belirgin negatif Eu anomalisi ve hafi f nadir toprak elementleri (NTE) içeriğindenağır nadir toprak elementleri (NTE) içeriğine doğru bir azalma ile karakterize edilir. Graniti oluşturaneriyikler, manto malzemesinden gelen olası katkılar ile birlikte, alt kıtasal kabuğun kısmi ergimesindenkaynaklanmıştır. Lisar graniti, Paleotetis Okyanusunun kapanması ve devamında gelen çarpışmaları takipeden, Kuzey İran’daki Kimmeriyen çarpışma sonrası magmatizmasını temsil etmektedir.

WHOLE ROCK GEOCHEMISTRY AND TECTONIC SETTING OF JURASSIC AGED LISAR GRANITE, TALESH MOUNTAINS, NORTH IRAN

The Late Jurassic aged Lisar granite in North Iran is in tectonic contact of the form of thrust and strike slip faults with Upper Cretaceous sandy limestone and is covered by Paleogene polygenetic conglomerate in the Talesh Mountain at the western continuation of the Alborz range. The rock samples of the granite are pink coloured and coarse-gained with K-feldspar, quartz, plagioclase, biotite and amphibole. The Lisar granite is more likely emplaced in an extensional environment indicated with numerous space fi lling silica-rich aplitic veins in the rocks. The granite samples are moderately altered and feldspars are changed to sericite and clay minerals and biotite is partially converted to chlorite. The Lisar granite has derived from a high K magma and is A-type in nature, belonging to A2 subgroup. The rock samples of granite are characterized by distinct negative Eu anomaly and a decrease from LREE to HREE contents. The parental melts of the granite were generated from partial melting of a lower continental crustal source with possible contribution from the mantle materials. The Lisar granite represents Cimmerian post-collision magmatism in north Iran following closure of Palaeotethys Ocean and subsequent collision.

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Alavi, M. 1991. Sedimentary and Structural characteristics of the Paleo-Tethys remnants in northeastern Iran. Geological Society of America Bulletin 103, 983- 992.
Allen, M.B., Ghassemi, M.R., Shahrabi, M., Qorashi, M. 2003. Accommodation of late Cenozoic shortening in the Alborz range, northern Iran. Journal of Structural Geology 25, 659–672.
Annells, R.N., Arthurton, R.S., Bazley, R.A., Davies, R.G. 1975. Explanatory text of the Qazvin and Rasht quadrangles map: Tehran, Geological Survey of Iran, 94 p.
Annells, R.N., Arthurton, R.S., Bazley, R.A., Davies, R.G., Hamedi, M.A.R., Rahimzadeh, F. 1977. Geological map of Iran, Shakran sheet 6162: Geological Survey of Iran, scale 1:100 000.
Asadian, O. 1999. Geological map of Khalkhal, 1:100000. Geological Survey of Iran.
Axen, G. J., Patrick, S.L., Marty, G., Stockli, D., F., Hassanzadeh, J. 2001. Exhumation of the west-central Alborz Mountains, Iran, Caspian subsidence, and collision-related tectonics. Geology 29.6, 559-562.
Berberian, F., Berberian, M. 1981. Tectono-plutonic episodes in Iran. In: H. Gupta and F. Delany (Editors), Zagros-Hindu Kush-Himalaya Geodynamic Evolution. American Geophysical Union, Geodynamic Series 3, 5- 32.
Bonin, B. 2007. A-type granites and related rocks: evolution of a concept, problems and prospects. Lithos 97,1–29.
Boulin, J. 1981. Afghanistan structure. Greater India concept and eastern Tethys evolution. Tectonophysics 72, 261-287.
Clark, G.C., Davies, R.G., Hamzepour, G., Jones, C.R. 1975. Explanatory text of Bandar-e-Anzali quadrangle map, 1:250,000. Geological Survey of Iran.
Clemens, J. D., Hollaway, J. R., White, A. J. R., 1986. Origin of an A-type granite: experimental constraints. American Mineralogist 71, 317-324.
Collins, W.J., Beams, S.D., White, A.J.R., Chappell, B.W. 1982. Nature and origin of A-type granites with particular reference to southeastern Australia. Contributions to Mineralogy and Petrology 80, 189–200.
Creaser, R.A., Price, R.C., Wormald, R. J. 1991. A-type granites revisited: Assessment of a residualsource model. Geology 19, 163–166.
Debon, F., Afzali, H., LeFort, P., Sonet, J., Zimmermann, J.L. 1987. Plutonic rocks and associations in Afghanistan: typology, age and geodynamic setting. Memoire Science de la Terre, Nancy 49, 132 pp.
Delaloy, M., Jenny, J., Stampfl i, G. 1981. K-Ar dating in the eastern Elburz (Iran). Tectonophysics 79, 27-36.
De La Roche, H., Leterrier J., Grand Iauale, Pand Marcher, M. 1980. A classifi cation of volcanic and plutonic rocks using R1 - R2 diagrams and major element analysis. Chemical Geology 183-210.
Ding, X., Lundstrom, C., Huang, F., Li, J., Zhang, Z.M., Sun, X.M., Liang, J.L., Sun,W.D. 2009. Natural and experimental constraints on formation of the continental crust based on niobium–tantalum fractionation. International Geology Review 51, 473–501.
Eby, G. N. 1990. The A-Type granitoyids: A Review for their occurrence and characteristics and speculations on their petrogenesis. Lithos 26, 115-134.
Erkül, A., Sözbilir, R., Erkül, F., Helvaci, C., Ersoy, Y., Sümer, Ö. 2008. Geochemistry of I-type granitoyids in the Karaburun Peninsula, West Turkey: Evidence for Triassic continental arc magmatism following closure of the Palaeotethys. Island Arc 17, 394–418.
Foley, S., Tiepolo, M., Vannucci, R. 2002. Growth of early continental crust controlled by melting of amphibolite in subduction zones. Nature, 417, 837–840.
Frost, B. R. , Arculus, R. J. , Barnes, C. G. , Collins, W. J. , Ellis, D. J. , and Frost, C. D. 2001. A geochemical classifi cation of granitic rock suites. Journal of Petrology 42, 2033 – 48.
Gamkrelidze, I.P., Shengelia, D.M. 2007. Pre-Alpine geodynamics of the Caucasus, suprasubduction regional metamorphism and granitoyid magmatism. Bulletin of the Georgian national academy of sciences 175.
Ghavidel-Syooki, M. 2007. Palynostratigraghy and Palaeogegraphy of the Gorgan schists in southern Gorgan city (southeastern Caspian Sea), eastern Alborz range, northern Iran. CIMP Lisbon Abstracts 63-64.
Green, T.H. 1995. Signifi cance of Nb/Ta as an indicator of geochemical processes in the crust-mantle system. Chemical Geology 120, 347–359.
Guest, B., Axen, G.J., Lam, P.S., Hassanzadeh, J. 2006. Late Cenozoic shortening in the west-central Alborz Mountains, northern Iran, by combined conjugate strike slip and thin-skinned deformation. Geosphere 2/1, 35–52.
Harris, N.B.W., Marzouki, F.M.H., Ali, S. 1986. The Jabel Sayid Complex, Arabian Shield: geochemical constraints on the origin of peralkaline and related granites. Journal of the Geological Society of London 143, 287-295. Hastie, A. R., Kerr, A. C., Pearce, J. A., Mitchell, S. F. 2007. Classifi cation of Altered Volcanic Island Arc Rocks using Immobile Trace Elements: Development of the Th–Co Discrimination Diagram. Journal of Petrology 48, 2341-2357.
Hennig, D., Lehmann, B., Frei, D., Belyatsky, B., Zhao, X.F., Cabral, A.R., Zeng, P.S., Zhou, M.F., Schmidt, K. 2009. Early Permian seafl oor to continental arc magmatism in the eastern Paleo-Tethys: U-Pb age and Nd-Sr isotope data from the southern Lancangjiang zone, Yunnan, China. Lithos 113, 408-422.
Huang, X.L., Xu, Y.G., Li, X.H., Li, W.X., Lan, J.B., Zhang, H.H., Liu, Y.S., Wang, Y.B., Li, H.Y., Luo, Z.Y., Yang, Q.J. 2008. Petrogenesis and tectonic implications of Neoproterozoic, highly fractionated A-type granites from Mianning, South China. Precambrian Research 165(3), 190- 204.
Jackson, J., Priestley, K., Allen, M., Berberian, M. 2002. Active tectonics of the South Caspian Basin. Geophysical Journal International 148, 214–245,
Jassim, S. Z. and Goff, J. C. 2006. Geology of Iraq. Dolin, Prague and Moravian Museum Brno. 338p.
Jurvanen,T., Elkund, O., Väisänen, M. 2005. Generation of A-type granitic melts during the late Svecofennian metamorphism in southern Finland. GFF 127, 139–147.
Katzir, Y., Eyal, M., Litvinovsky, B. A., Jahn, B. M., Zanvilevich, A. N., Valley, J. W., Beeri, Y., Pelly, I., Shimshilashvili, E. 2007. Petrogenesis of A-type granites and origin of vertical zoning in the Katharina pluton, Gebel Mussa (Mt. Moses) area, Sinai, Egypt. Lithos, 95(3), 208-228.
Kaur, P., Chaudhri, N., Paczek, I., Kroner, A., Hofmann, A. W. 2007. Geochemistry, zircon ages and whole rock Nd isotopic systematics for the Palaeoproterozoic A-type granitoyids in the northern part of the Delhi belt, Rajasthan, NW India: implications for late Palaeoproterozoic crustal evolution of the Aravalli craton. Geological Magazine 144(2), 361-378.
Landenberger, B., Collins, W.J. 1996. Derivation of A-type Granites from a Dehydrated Charnockitic Lower Crust: Evidence from the Chaelundi Complex, Eastern Australia. Journal of Petrology 37, 145– 170.
Madanipour, S., Ehlers, T. A., Yassaghi, A., Enkelmann, E. Siebel, W. 2015. Time-temperature U-ThPb-He modelling of the Lisar Granite in the Talesh Mountains, Evidence for Late Cenozoic exhumation pattern at NW Iranian Plateau. The fi rst meeting of Tectonic and Structural Geology Association of Iran, Tehran.
Majidi, B. 1991. Ètude structurale de là region de Mashad (Iran). Les problemes des metamorphites, serpentinites et granitoyides hercyniens. These de Docteur Ingenieur,Universite Scientifi que et Medicale de Grenoble. 277 p.
Majidi. B. 1987. The geochemistry of ultrabasic and basic lava fl ows occurrences in northeastern Iran, In Geodynamic project in Iran. Geological Survey of Iran, Report No. 51,463-477.
Maniar, P.D., Piccolli, P.M. 1989. Tectonic discrimination of granitoyids. Geological Society of America Bulletin 101, 635-643.
Manning, C.E., Bohlen, S.R. 1991. The reaction titanite + kyanite = anorthite + rutile and titaniterutile barometry in eclogites. Contributions to Mineralogy and Petrology 109, 1–9.
McDonough, W.F. 1991. Partial melting of subducted oceanic-crust and isolation of its residual eclogitic Lithology. Philosophical Transactions of the Royal Society of London Series a-Mathematical Physical and Engineering Sciences 335, 407–418.
Mirnejad, H., Lalonde, A. E., Obeid, M., Hassanzadeh, J. 2013. Geochemistry and petrogenesis of Mashhad granitoyids: An insight into the geodynamic history of the Paleo-Tethys in northeast of Iran. Lithos 170–171, 105–116.
Moix, P., Beccaletto, L., Kozur, H.W., Hochard, C., Rosselet, F., Stampfl i, G.M. 2008. A new classifi cation of the Turkish terrenes and sutures and its implication for the paleotectonic history of the region. Tectonophysics 451, 7-39.
Muttoni, G., Mattel, M., Balini, M., Zanchi, A., Gaetani, M., Berra, F. 2009. The drift history of Iran from the Ordovician to the Triassic. The Geological Society, London, Special Publications 312, 7-29.
Omrani, H., Moazzen, M., Oberhansli, R., Tsujimori, T., Bosuqet, R., Moayyed, M. 2013. Metamorphic history of glaucophane-paragonite-zoisite eclogites from the Shanderman area, northern Iran. Journal of Metamorphic Geology 31, 791- 812.
Pearce, J.A. 1996. Sources and settings of granitic rocks. Episodes 19, 120–125.
Peccerillo, A., Barberio, M.R., Yirgu, G., Ayalew, D., Barbieri, M., Wu, T.W. 2003. Relationships between mafi c and peralkaline silicic magmatism in continental rift settings: a petrological, geochemical and isotopic study of the Gedesma Volcano, Central Ethiopian Rift. Journal of Petrology 44 (11), 2003–2032.
Rezaeian M., Carter, A., Hovius, N., Allen, M. B. 2012. Cenozoic exhumation history of the Alborz Mountains, Iran: New constraints from lowtemperature chronometry. Tectonics, 31(2).
Ritz, J.F., Nazari H., Ghassemi, A., Salavati R., Shafei A., Solaymani S. & Vernant, P. 2006. Active transtension inside central Alborz: A new insight into northern Iran–southern Caspian geodynamics. Geology 34/ 6, 477–480.
Ruban, D.A., AL-Husseini, M.I., and Iwasaki, Y. 2007. Review of Middle East Paleozoic plate tectonics. GeoArabia 12(3), 35-56.
Rudnick, R.L., Barth, M., Horn, I., McDonough, W.F. 2000. Rutile-bearing refractory eclogites: Missing link between continents and depleted mantle. Science, 287, 278–281.
Şengör, A.M.C. 1979. Mid-Mesozoic closure of PermoTriassic Tethys and its implications. Nature 279, 590-593.
Şengör, A.M.C. 1990. A new model for the late Palaeozoic– Mesozoic tectonic evolution of Iran and implications for Oman. In: ROBERTSON, A. H., SEARLE, M. P. & RIES, A. C. (eds) The Geology and Tectonics of the Oman Region. Geological Society, London, Special Publications 49, 797– 831.
Shafaii Moghadam, H., Li, X.-H. Ling, X.-X. Stern, R. J., Khedr, M. Z. Massimo Chiaradia, M., Ghasem Ghorbani, G., Arai, S., Tamura. A. 2015. Devonian to Permian evolution of the Paleo-Tethys Ocean: Newevidence from U–Pb zircon dating and Sr– Nd–Pb isotopes of the Darrehanjir–Mashhad “ophiolites”, NE Iran. Gondwana Research 28, 781–799
Shellnut, J. G., Zhou, M.F., Zellmer, G.F. 2009. The role of Fe-Ti oxide crystallization in the formation of A-type granitoyids with implications for the Daly gap: an example from the Permian Baima igneous complex, SW China. Chemical Geology 259, 204-217.
Shkodzinskiy, V.S. 1985. Magma Phase Evolution and Petrogenesis. Moscow: Nauka, 232 pp. [In Russian].
Stampfl i, G.M., Kozur, H.W. 2006. Europe from the Variscan to the Alpine cycles. In: Gee, D.G., Stephenson, R.A. (Eds.), European lithosphere dynamics. Memoir of the Geological Society London, 57-82.
Stampfl i G., Marcoux J., B., Baud, A.1993. Tethyan margins in space and time: In: Channell, J.E.T., Winterer, E. L., Jansa, L.F. (E.d.s). Palaeogeography, Palaeoclimatology and Palaeoecology 87, 373- 409.
Stöcklin, J. 1974. Possible ancient continental margins in Iran. In The geology of continental margins (pp. 873-887). Springer Berlin Heidelberg.
Streckeisen A. 1976. To each plutonic rocks its proper name. Earth Science Reviews 12, 1-33.
Sun S.S., McDonough, W.F. 1989. Chemical and isotopic systematic of oceanic basalts; implications for mantle composition and processes. In: Saunders, A.D., Norry, M.J. (eds.) Magmatism in the ocean basins. Geological Society of London 42, 313- 345.
Sylvester, P.J. 1989. Post-collisional alkaline granites. Journal of Geology 97, 261–280.
Taylor, R.P., Strong, D.F., Fryer, B.J. 1981. Volatile control of contrasting trace element distributions in peralkaline granitic and volcanic rocks. Contributions to Mineralogy and Petrology 77, 267–271.
Watson, E.B., Harrison T.M. 1984. Accessory minerals and the geochemical evolution of crustal magmatic systems: a summary and prospectus of experimental approaches. Physics of Earth and Planetary Interiors 35, 19–30.
Whalen, J.B., Currie, K.L., Chappell, B.W. 1987. A-type granites: geochemical characteristics, discrimination and petrogenesis. Contributions to Mineralogy and Petrology 95, 407-419
Zhanchetta, S., Zanchi, A., Villa, I., Poli, S., Muttoni, G. 2009. The Shanderman eclogites: a late carboniferous high-pressure event in the NW Talesh Mountions (NW Iran). Geological Society London, Special publications, 57-78.
Zanchi, A., Zanchetta, S. et al. 2009. The Eo-Cimmerian (Late-Triassic) orogeny in North Iran. In: Brunet, M.-F., Wilmsen, M., Granath, J. W. (eds) South Caspian to Central Iran Basins. Geological Society of London Special Publications 312, 31–55.
Zhang, C.-Z., Li B., Cai, J.-X.a, Tang X.-C., Wei, Q.-G., Zhang, Y.-X. 2008. A-type granite and adakitic magmatism association in Songpan-Garze fold belt, eastern Tibetan Plateau: Implication for lithospheric delamination: Comment. Lithos 103, 562–564.