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Kazdağ Masifi’nde (Biga Yarımadası) Yer Alan Meta-Ofiyolitik Kayaların TitaniQ Termometresi ve Rutil İz Element Bileşimi

Ofiyolitik meta-gabrolar Biga Yarımadası’nın güneyinde Kazdağ Masifi’nde yüzlek vermektedir. Meta-gabrolar içerisindeki rutil ve kuvars minerallerinin iz element bileşimleri LA-ICP-MS ile saptanmıştır. Hem matriks içerisinde hem de granat içerisinde kapanım olarak bulunan rutil tanelerinin Zr içeriği 176 ile 428 ppm arasında değişmekte ve ortalama Zr içeriği ise 335 ppmdir. Rutil taneleri genellikle homojen Zr dağılımına sahiptir. Kazdağ Masifi’nde incelenen örnekler içerisindeki rutil taneleri subkondritik Nb/Ta (11-23) ve Zr/Hf (20-33) değerleriyle karakterize olmaktadır. Nb/Ta ve Zr/Hf pozitif korelasyon göstermekte ve bu da muhtemelen silikat parçalanmasından kaynaklanmaktadır. Nb/Ta ve Zr/Hf oranları Ta ve Hf içeriklerindeki azalmayla artma eğilimi sunmaktadır. Rutil tanelerinin çekirdekleri genellikle düşük Nb/Ta (17-18) oranlarıyla karakterize olurken kenar kesimleri göreceli olarak daha yüksek Nb/Ta (19-23) oranlarına sahiptir. Rutilin iz element analizleri rutil kristallerinin metamorfik akışkanlardan itibaren geliştiğini göstermektedir. Kuvarsın Ti içeriği rutilin Zr içeriğine göre geliştirilen termometreyle birlikte kullanıldığında kuvars ve rutilin birlikte bulunduğu kayalarda basınç-sıcaklık hesabı yapılabilmektedir. Ofiyolitik meta-gabroların basınç-sıcaklık koşulları kuvarsın Ti içeriğine ve rutilin Zr içeriğine göre hesaplanmıştır. Kuvarsın Tiiçeriği 28 ile 42 ppm arasında değişmekte ve ortalama 36 ppmdir. Basınç-sıcaklık diyagramında kuvarsın Ti eş değer eğrileri ile rutilin Zr eş değer eğrileri çakıştırıldığında elde edilen sıcaklık değeri ~ 660 C, basınç değeri ise ~ 10 kbardır. Meta-ofiyolitik kayaların basınç-sıcaklık koşulları bu kayaların Kazdağ Masifi içerisinde daha yüksek basınçlı ayrı bir tektonik dilim olduğunu ifade etmektedir. Amfibolit fasiyesi metamorfizması Neo-Tetis okyanusunun İzmir-Ankara kolunun kuzeye doğru Sakarya Zonualtına dalmasından kaynaklanmaktadır. Metamorfizmanın hemen ardından Kazdağ Masifi’nin orta-yüksek dereceli metamorfikkayaları kendi içerisinde çarpışma sırasında güneye doğru sıkışmayla birbiri üzerine bindirmiştir.

Anahtar Kelimeler:

Metamorfizma, Rutil, Kuvars, Termobarometre, Meta-gabro

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Austrheim, H., Putnis, C.V., Engvik, A.K. ve Putnis, A., 2008. Zircon coronas around Fe-Ti oxides: a physical reference frame for metamorphic and metasomatic reactions. Contribution to Mineralogy and Petrology 156, 517–527.
Aysal, N., Ustaömer, T., Öngen, S., Keskin, M., Köksal, S., Peytcheva, I. ve Fanning, M., 2012. Origin of the Early-Middle Devonian Magmatism in the Sakarya Zone, Nw Turkey: Geochronology, Geochemistry and Isotope Systematics. Journal of Asian Earth Sciences 45, 201-222.
Baldwin, J.A. ve Brown, M., 2008. Age and duration of ultrahigh-temperature metamorphism in the Anápolis Itauçu Complex, Southern Brasilia Belt, central Brazil – constraints from U-Pb geochronology, mineral rare earth element
Beccaletto, L. ve Jenny, C., 2004. Geology and Correlation of the Ezine Zone: A Rhodope Fragment in NW Turkey? Turkish Journal of Earth Sciences 13, 145-176.
Bingöl, E. 1969. Kazdağ Masifi’nin Merkezi ve GD Kesiminin Jeolojisi. MTA Dergisi 72, 110-123.
Brenan, J.M., Shaw, H.F., Phinney, D.L. ve Ryerson, F.J., 1994. Rutile-aqueous fluid partitioning of Nb, Ta, Hf, Zr, U and Th: implications for high field strength element depletions in island-arc basalts. Earth and Planetary Science Letters 128, 327–339.
Cavazza, W., Okay, A.I. ve Zattin, M., 2009. Rapid early-middle Exhumation of the Kazdağ Massif (western Anatolia). International Journal of Earth Sciences 98, 1935-1947.
Deer, W.A., Howie, R.A., Zussman, J., 1992. An Introduction to Rock-Forming Minerals. Longman Group, Harlow, UK.
Ding, X., Hu, Y.H., Zhang, H., Li, C.Y., Ling, M.X. ve Sun, W.D., 2013. Major Nb/Ta fractionation recorded in garnet amphibolite facies metagabbro. Journal of Geology 121, 255–274.
Duru, M., Pehlivan, Ş., Şentürk, Y., Yavaş, F. ve Kar, H., 2004. New Results on the Lithostratigraphy of the Kazdağ Massif in Northwest Turkey. Turkish Journal of Earth Sciences 13, 177-186.
Dürr, S., Alther, R., Keller, J., Okrusch, M. ve Seidel, E., 1978. The median Aegean crystalline belt: Stratigraphy, structure, metamorphism, magmatism. In: Closs, H., Roeder, D., Schmidt, K., (eds) Alps, Appenines and Hellenides:
Eggins, S., Kinsley, L. ve Shelley, J., 1998. Deposition and element fractionation processes during atmospheric pressure laser sampling for analysis by ICP-MS. Applied Surface Science 127, 278–286.
Erdoğan, B., Akay, E., Hasözbek, A., Satır, M. ve Siebel, W., 2013. Stratigraphy and tectonic evolution of the Kazdağ Masif (NW Anatolia) based on field studies and radiometric ages. International Geology Review 55, 2060-2082.
Ewing, T.A.,, Herman, J. ve Rubatto, D., 2013. The robustness of the Zr-in-rutile and Ti-inzircon thermometers during high-temperature metamorphism (Ivrea-Verbano zone, northern Italy). Contribution to Mineralogy and Petrology 165, 757–779.
Ferry, J.M. ve Spear, F.S., 1978. Experimental calibration of the partitioning of Fe and Mg between biotite and garnet. Contribution to Mineralogy and Petrology 66, 113–117.
Ferry, J.M. ve Watson, E.B., 2007. New thermodynamic models and revised calibrations for the Ti-inzircon and Zr-in-rutile thermometers. Contribution to Mineralogy and Petrology 154, 429–437.
Foley, S., Tiepolo, M., Vannucci, R., 2002. Growth of early continental crust controlled by melting of amphibolite in subduction zones. Nature 417: 837–840.
Foley, S.F., Barth, M.G. ve Jenner, G.A., 2000. Rutile/melt partition coefficients for trace elements and assessment of the influence of rutile on the trace element characteristics of subduction zone magmas. Geochimica Cosmochimca Acta 64, 933–938.
Gao, X.Y., Zheng, F.Y., Xia, X.P. ve Chen, Y.P., 2014. U-Pb ages and trace element of metamorphic rutile from ultrahigh-pressure quartzite in the Sulu orogen. Geochimica Cosmochimica Acta 143, 87114.
Graham, J. ve Morris, R.C., 1973. Tungsten- and antimony substituted rutile. Mineralogical Magazine 39, 470–473.
Green, T.H., 1995. Significance of Nb/Ta as an indicator of geochemical processes in the crust–mantle system. Chemical Geology 120, 347–359.
Hermann, J., Spandler, C., Hack, A. ve Korsakov, A., 2006. Aqueous fluids and hydrous melts in high-pressure and ultra-high pressure rocks: implications for element transfer in subduction zones. Lithos 92, 399–417.
Horng, W.S. ve Hess, P.C., 2000. Partition coefficients of Nb and Ta between rutile and anhydrous haplogranite melts. Contribution to Mineralogy and Petrology 138, 176–185.
Huang, J., Xiao. Y.L., Gao, Y.J., Hou, Z.H. ve Wu, W., 2012 Nb–Ta fractionation induced by fluid-rock interaction in subduction-zones: constraints from UHP eclogite- and vein-hosted rutile from the Dabie orogen, Central-Eastern China. Journal of Metamorphic Geology 30, 821–842.
Jochum, K.P. ve Nehring, F., 2006. NIST 610: GeoReM preferred values (11/2006). GeoReM http://georem.mpch-mainz.gwdg.de.
John, T., Scherer, E.E., Haase, K. ve Schenk, V., 2004. Trace element fractionation during fluid-induced eclogitization in a subducting slab: trace element and Lu-Hf-Sm-Nd isotope systematics. Earth and Planetary Science Letters 227, 441–456.
John, T., Klemd, R., Klemme, S., Pfander, J., Hoffmann, J. ve Gao, J., 2011. Nb–Ta fractionation by partial melting at the titanite–rutile transition. Contribution to Mineralogy and Petrology 161, 35–45.
Klemme, S., Prowatke, S., Hametner, K., Gunther, D., 2005. Partitioning of trace elements between rutile and silicate melts: Implications for subduction zones. Geochimica Cosmochimica Acta 69, 2361–2371.
Kohn, M.J. ve Spear, F.S., 1990. Two new geobarometers for garnet amphiboliteso with applications to southeastern Vermont. American Mineralogist 75, 89-96.
Luvizotto, G.L. ve Zack, T., 2009. Nb and Zr behavior in rutile during high-grade metamorphism and retrogression:An example fromthe Ivrea–Verbano Zone. Chemical Geology 261, 303–317.
Luvizotto, G.L., Zack, T., Meyer, H.P., Ludwig, T., Triebold, S., Kronz, A., Munker, C., Stockli, D.F., Prowatke, S., Klemme, S., Jacob, D.E. ve Eynatten, H., 2009. Rutile crystals as potential trace element and isotope mineral standards for microanalysis. Chemical Geology 261, 346–369.
Meinhold, G., 2010. Rutile and its applications in earth sciences. Earth Science Review 102, 1–28.
Meinhold, G., Kostopoulos, D., Frei, D.,, Himmerkus, F. ve Reischmann, T., 2010. U-Pb LA-SF-ICP-MS zircon geochronology of the Serbo-Macedonian Massif, Greece: Palaeotectonic constraints for Gondwana-derived terranes in the Eastern Mediterranean. International Journal of Earth Sciences 99, 813–832.
Meyer, M., John, T., Brandt, S. ve Klemd, R., 2011. Trace element composition of rutile and the application of Zr-in-rutile thermometry to UHT metamorphism (Epupa Complex, NW Namibia). Lithos 126, 388-401.
Miller, C., Zanetti, A. ve Thoni, M., 2007. Eclogitisation of gabbroic rocks: Redistribution of trace elements and Zr in rutile thermometry in an EoAlpine subduction zone (Eastern Alps). Chemical Geology, 239, 96–123.
Moix, P., Beccaletto, L., Kozur, H., Hochard, C., Rosselet, F. ve Stampfli, G.M., 2008. A new classification of the Turkish terranes and sutures and its implication for the paleotectonic history of the region. Tectonophysics 451, 7–39.
Münker, C., Pfänder, J.A., Weyer, S., Büchl, A., Kleine, T. ve Mezger, K., 2003. Evolution of planetary cores and the Earth–Moon system from Nb/Ta systematic. Science 301, 84–87.
MTA, 2012. General and economic geology of the Biga Peninsula. Special Publication Series, 28, p 326 (in Turkish).
Okay, A.I., 1984. Distribution and characteristics of the northwest Turkish blueschists. In: Robertson, A.H.F., Dixon, J.E., (eds) The geological evolution of the eastern Mediterranean. Geological Society of Special Publication No:17, 455 -466.
Okay, A.I., 1986. High-pressure/low-temperature metamorphic rocks of Turkey: Geological Society of America Memoir 164, 333–347.
Okay, A.I. ve Tüysüz, O., 1999. Tethyan sutures of northern Turkey. In: Durand B, Jolivet L, Horváth F, Séranne M (eds) The Mediterranean Basins: Tertiary Extension within the Alpine Orogen. Geological Society Special Publications No: 156, 475–515.
Okay, A.I. ve Satır, M., 2000. Coeval plutonism ve metamorphism in a latest Oligocene metamorphic core complex in Northwest Turkey. Geological Magazine 137, 495-516.
Okay, A.I. ve Göncüoğlu, M.C., 2004. The Karakaya Complex: A Review of Data and Concepts. Turkish Journal of Earth Sciences 13, 77-95.
Okay, A.I., Satır, M. ve Siebel, W., 2006. Pre-Alpide and Mesozoic orogenic events in the Eastern Mediterranean region. Geological Society of Special Publication No:32, 389-405.
Okay, A.I., Satır, M., Maluski, H., Siyako, M., Monie, P., Metzger, R. ve Akyüz, S., 1996. Paleo-and Neotethyan events in northwest Turkey. In: Yin, A., Harrison, M., (eds) Tectonics of Asia. Cambridge University Press, Cambridge, pp. 420-441.
Philpotts, A.R., 1990. Principles of igneous and metamorphic petrology. Prentice Hall, Englewood Cliffs.
Pickett, E.A., Robertson, A.H.F. ve Dixon, J.E., 1996. The Karakaya Complex, NW Turkey: A Palaeo Tethyan Accretionary Complex, Geology of the Black Sea Region. Geological Society of Special Publication No: 153, 995-1009.
Rudnick, R.L., Barth, M., Horn, I. ve McDonough, W.F., 2000. Rutile-bearing refractory eclogites: missing link between continents and depleted mantle. Science 287, 278–281.
Scambelluri, M., Bottazzi, P., Trommsdorff, V., Vannucci, R., Hermann, J., Gomez-Pugnaire, M.T. ve Lopez-Sanchez-Vizcaino, V., 2001. Incompatible element-rich fluids released by antigorite breakdown in deeply subducted mantle.
Schmidt, M.W., Dardon, A., Chazot, G. ve Vannucci, R., 2004. The dependence of Nb and Ta rutile–melt partitioning on melt composition and Nb/Ta fractionation during subduction processes. Earth and Planetary Science Letters 226, 415–432.
Schmidt, A., Weyer, S., Mezger, K., Scherer, E.E., Xiao, Y.L., Hoefs, J. ve Brey, G.P., 2008. Rapid eclogitisation of the Dabie-Sulu UHP terrane: constraints from Lu–Hf garnet geochronology. Earth and Planetary Science Letters 273, 203–213.
Schmidt A, Weyer S, John T, Brey GP (2009) HFSE systematics of rutile-bearing eclogites: new insights into subduction zone processes and implications for the earth’s HFSE budget. Geochim Cosmochim Acta 73: 455–468
Spear, F.S., 1993. Metamorphic phase equilibria and pressure-temperature-time paths. Mineralogical Society of America Washington.
Spear, F.S., Wark, D.A. ve Cheney, J.T., 2006. Zr-inrutile thermometry in blueschists from Sifnos, Greece. Contribution to Mineralogy and Petrology 152, 375–385.
Stalder, R., Foley, S.F., Brey, G.P. ve Horn, I., 1998. Mineral-aqueous fluid partitioning of trace elements at 900–1200 C and 3.0–5.7 GPa: new experimental data for garnet, clinopyroxene, and rutile, and implications for mantle metasomatism. Geochimica Cosmochimica Acta 62, 1781–1801.
Stepanov, A.S. ve Hermann, J., 2013. Fractionation of Nb and Ta by biotite and phengite: implications for the “missing Nb paradox”. Geology 41, 303–306.
Şengör, A.M.C. ve Yılmaz, Y., 1981. Tethyan evolution of Turkey: a plate tectonic approach. Tectonophysics 75, 181-241.
Şengün, F. ve Zack, T., 2016. Trace element composition of rutile and Zr-in-rutile thermometry in meta-ophiolitic rocks from the Kazdağ Massif, NW Turkey. Mineralogy and Petrology, DOI 10.1007/s00710-016-0433-7.
Şengün, F., Yigitbas, E. ve Tunç, İ.O., 2011. Geology and Tectonic Emplacement of Eclogite and Blueschist, Biga Peninsula, Northwest Turkey. Turkish Journal of Earth Sciences 20, 273-285.
Tatsumi, Y. ve Nakamura, N., 1986. Composition of aqueous fluid from serpentine in the subducted lithosphere. Geochemical Journal 20, 191–196.
Tetiker, S., Yalçın, H., Bozkaya, Ö. ve Göncüoğlu, M. C., 2015. Diagenetic to Low-Grade Metamorphic Evolution of the Karakaya Complex in northern Turkey based on phyllosilicate mineralogy. Mineralogy and Petrology, 109, 201-215.
Thomas, J.B., Watson, E.B., Spear, F.S. ve Wark, D.A., 2015. TitaniQ recrystallized: experimental confirmation of the original Tiinquartz calibrations. Contribution to Mineralogy and Petrology 169, 27.
Thomas, J.B., Watson, E.B., Spear, F.S., Shemella, F.S., Nayak, S.K. ve Lanzirotti, A., 2010. TitaniQ under pressure: the effect of pressure and temperature on the solubility of Ti in quartz. Contribution to Mineralogy and Petrology 160, 743–759.
Tomkins, H.S., Powell, R. ve Ellis, D.J., 2007. The pressure dependence of the zirconium-in-rutile thermometer. Journal of Metamorphic Geology 25, 703–713.
Wark, D.A. ve Watson, E.B., 2006. The TitaniQ: a Titanium-in-quartz geothermometer. Contribution to Mineralogy and Petrology 152, 743–754.
Watson, E.B,, Wark, D.A. ve Thomas, J.B., 2006. Crystallization thermometers for zircon and rutile. Contribution to Mineralogy and Petrology 151, 413–433.
Weyer, S., Muenker, C. ve Mezger, K., 2003. Nb/Ta, Zr/Hf and REE in the depleted mantle: implications for the differentiation history of the crust–mantle system. Earth and Planetary Science Letters 205, 309–324.
Wilson, S.A., 1997. The collection, preparation, and testing of USGS reference material BCR-2, Columbia River, Basalt: U.S. Geological Survey Open-File Report 98.
Xia, Q.X., Zheng, Y.F. ve Hu, Z.C., 2010. Trace elements in zircon and coexisting minerals from low-T/UHP metagranite in the Dabie orogen: implications for action of supercritical fluid during continental subduction-zone metamorphism. Lithos 114, 385–412.
Xiao, Y.L., Sun, W.D., Hoefs, J., Simon, K., Zhang, Z.M,. Li, S,G, ve Hofmann, A.W., 2006. Making continental crust through slab melting: constraints from niobium–tantalum fractionation in UHP metamorphic rutile. Geochimica Cosmochimica Acta 70, 4770–4782.
Xiong, X.L., Adam, J. ve Green, T.H., 2005. Rutile stability and rutile/melt HFSE partitioning during partial melting of hydrous basalt: implications for TTG genesis. Chemical Geology 218, 339–359.
Van Achterbergh, E., Ryan, C.G. ve Griffin, W.L., 2000. GLITTER (Version 3.0, On-line Interactive Data Reduction for LA-ICPMS). Maquarie Research Ltd.
Yiğitbaş, E., Şengün, F. ve Tunç, İ.O., 2014. Pre Neogene tectonic units in the Biga Peninsula and an approach
to geodynamic evolution of region. TUBITAK project (110Y281).
Zack, T., Kronz, A., Foley, S.F. ve Rivers, T., 2002. Trace element abundances in rutiles from eclogites and associated garnet mica schists. Chemical Geology 184, 97–122.
Zack, T., Moraes, R. ve Kronz, A., 2004. Temperature dependence of Zr in rutile: empirical calibration of a rutile thermometer. Contribution to Mineralogy and Petrology 148, 471–488.
Zhang, J.X., Yu, S., Meng, F.C. ve Li, J.P., 2009. Paired high-pressure granulite and eclogite in collision orogens and their geodynamic implications. Acta Petrologica Sinica 25: 2050–2066 (in Chinese with English abstract).
Zheng, Y.F., Xia, Q.X., Chen, R.X. ve Gao, X.Y., 2011. Partial melting, fluid supercriticality and element mobility in ultrahigh-pressure metamorphic rocks during continental collision. Earth Science Reviews 107, 342–374.