Abstract
The Izmir-Karaburun region is located on the West coast of Turkey. In this area volcanic rocks of the late Miocene-Pliocene age outcrop. On the basis of the collected petrographic and geochemical data it has been possible to subdivide these rocks in to three series:a) calc-alkaline series of Karaburun-Koca dag-Izmir (quantitatively the most important). This series is formed by latite-andesites-dacites-rhyodacites.b) Silicic series of Izmir-Lebedos, mainly constituted by alkali rhyolitic rocks.c) Urla series, formed by alkali trachytes and alkali rhyolites, associated with scarce basic lavas of hawaiitic type. A different genesis is assumed for these series. In a first phase the latite-andesitic magma was formed by a partial melting in the lower crust or in the upper mantle. Afterwards a subcrustal magma with alkali basaltic affinity rose slowly through the crust forming an intermediate reservoir and differentiating predominantly towards alkali trachytic terms. Finally silicic magma of Izmir-Lebedos was formed by an anatectic process. It is possible that the fusion has been favoured by the presence of basic magma in the upper crust.
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References
Akartuna, M., 1962,On the Geology of Izmir-Torbali-Seferihisar-Urla district. M.T.A. Bull., vol. 59, p. 1–18.
Baker, P. E., 1968,Petrology of Misery Volcano, St. Kitts, West Indies. Lithos, vol. 1, p. 124–150.
Besenecker, H., Durr, S., Herget, G., Jacobshagen, V., Kauffmann, G., Ludtke, G., Roth, W., Tietze, K. W., 1968,Geologie von Chios (Agäis). Geologica et Paleontologica, vol. 2, p. 121–150.
Burns, R. G., 1970,Mineralogical Applications of Crystal Field Theory. Cambridge, 224 pp.
Chesterman, C. W., 1957,Volcanic Lightweight Aggregates of Western United States. Congr. Geol. Int., Seccion I, vol. 1, p. 205–229, Mexico.
Cioni, R., Innocenti, F., Mazzuoli, R., 1971,Chemical Analyses and Some Trace Element Data on Standard Silicate Rocks. Chem. Geol., vol. 7, p. 19–23.
Green, T. H., Ringwood, A. E., 1968,Genesis of Calc-alkaline Igneous Rock Suite. Contr. Min. and Petrol., vol. 18, p. 105–162.
Kalafatçioglu, A., 1961,A Geological Study in the Karaburum Peninsula. M.T.A. Bull., vol. 56, p. 40–49.
Kuno, H., 1967,Igneous Rock Series. Chemistry of the Earth’s Crust II, p. 113–128.
Lowder, G. G., Carmichael, I. S. E., 1970,The Volcanoes and Caldera of Talasea, New Britain: Geology and Petrology. Geol. Soc. Am. Bull., vol. 81, p. 17–31.
Macdonald, G. A., 1960,Dissimilarity of Continental and Oceanic Rock Types. J. Petrol., vol. 1, p. 172–177.
O’Hara, M. J., 1968,The Bearing of Phase Equilibria Studies on the Origin and Evolution of Basic and Ultrabasic Rocks. Earth Sc. Rev., vol. 4, p. 69–686.
Osborn, E. F., 1959,Role of Oxygen Pressure in the Crystallisation and Differentiation of Basaltic Magma. Am. J. Sci., vol. 257, p. 609–647.
Paraskevopoulos, G. M., 1958,Uber den Chimismus und die provinzialen Verhältnisse der tertiären und quatärnaren Ergussgesteine des ägäischen Roumes und der benachbarten Gebiete. Tscherm. Min. Petr. Mitt., vol. 6, p. 13–72.
Pichler, H., Zeil, W., 1969,Andesites of the Chilean Andes. Proc. Symp. on Andesites, Univ. Oregon, p. 165–174.
Siegers, A., Pichler, H., Zeil, W., 1969,Trace Element Abundances in the «Andesite» Formation of Northern Chile. Geochim. et Cosmochim. Acta, vol. 33, p. 882–887.
Streckeisen, A. L., 1967,Classification and Nomenclature of Igneous Rocks. N. Jb. Miner. Abh., vol. 107, p. 144–240.
Taylor, S. R., 1965,The Application of Trace Element Data to Problems in Petrology. Phys. Chem. Earth, vol. 6, p. 133–213.
-----, 1969,Trace Element Chemistry of Andesites and Associated Calc-alkaline Rocks. Proc. Symp. on Andesites, Univ. of Oregon, p. 43–63.
—————, 1969a, Genetic Significance of Co, Cr, Ni, Sc and V Contents of Andesites. Geochim. et Cosmochim. Acta, vol. 33, p. 275–286.
—————, 1969b, Trace Element Abundances in Andesites. II: Saipan, Bouganville and Fiji. Contr. Min. and Petrol., vol. 23, p. 1–26.
Thornton, C. P., Tuttle, O. F., 1960,Chemistry of Igneous Rocks. I: Differentiation Index. Am. J. Sci., vol. 258, p. 664–684.
Urgün, T., 1967,Geological Work of Urla-Izmir Region for the Geothermal Survey. Preliminary Report. M.T.A. Report, Ankara.
Washington, H. S., 1894,On the Basalts of Kula. Am. J. Sci., vol. 47, p. 114–123.
—————, 1897,On Igneous Rocks from Smyrna and Pergamon. Am. J. Sci., vol. 3, p. 41–50.
—————, 1900,The Composition of Kulaite. J. Geol., vol. 8, p. 610–620.
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Innocenti, F., Mazzuoli, R. Petrology of the Izmir-Karaburun volcanic area (West Turkey). Bull Volcanol 36, 83–104 (1972). https://doi.org/10.1007/BF02596983
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DOI: https://doi.org/10.1007/BF02596983