HYDROTHERMAL ALTERATION STUDY AND VOLCANIC ROCK PETROLOGY OF ÇANAKKALE-TUZLA GEOTHERMAL AREA

Yıl 1985, Cilt: 103-104 Sayı: 103-104, 15 - 15, 01.08.1985

A. İhsan Gevrek Mehmet Şener Tuncay Ercan

Öz

Hydrothermal alteration zones have been investigated by
x-ray diffraction techniques and geochemical analysis. In studied area;
alunite, kaolinite, montmorillonite, illite, and silica zones have been recognized.
These hydrothermal alteration zones indicate that there are geothermal fluids
which have a temperature of 150-225Co in the reservoir. The tectonic structure
of studied area is developed by NW-SE and NE-SW directional forces. Geothermal
fluids coming from the diagonal cracks formed as a result of faults having a
strike of E-W and formed as a result of these forces have formed the necessary
environment for hydrothermal alteration. Volcanic rocks where hydrothermal
zones are observed in the studied area are of Lower-Middle Miocene age and are
represented by latite, andesite, dacite, rhyolite type lavas and tuff and
ignimbrites. With petrochemical studies it has been concluded that volcanites
are an inner continental volcanism having calc-alkaline with high potssium and
schoshonitic proporties and are shelf characteristic.

Anahtar Kelimeler

-

Kaynakça

• Borsi, S.; Ferrara, G.; Innocenti, F. ve Mazzuoli, R., 1972, Geochronology and petrology of recent volcanics in the Eastern Aegean Sea (West Anatolia and Lesbos island): Bull. Volcanol., 36, 473-496.
• Bürküt, Y., 1966, Kuzeybatı Anadolu'da yer alan plutonların mukayeseli jenetik etüdü: Doktora tezi, İTÜ Maden Fak.,272 s., İstanbul.
• Elders, W.A.; Bird., D.K.; Williams, A.E. ve Schiffman, P., 1984, Hydrothermal flow regime and magmatic heat source of the Cerro Prieto geothermal system, Baja Califomia, Mexico: Geothermics, 13, 27-47.
• Ercan, T. ve Türkecan, A., 1984, Batı Anadolu, Ege adaları, Yunanistan ve Bulgaristan'daki plutonların gözden geçirilişi: TJK Ketin Simpozyumu Kitabı, 189-208.
• ; ; Akyürek, B.; Günay, E.; Çevikbaş, A.; Ateş, M.; Can, B.; Erkan, M. ve özkirişçi, C, 1984, Dikili- Bergama-Çandarlı (Batı Anadolu) yöresinin jeolojisi ve magmatik kayaçlann petrolojisi: Jeoloji Mühendisliği, 20, 47-60.
• ; Satır, M.; Krevzer, H.; Türkecan, A.; Günay, E.; Çevikbaş, A.; Ateş, M. ve Can, B., 1985, Batı Anadolu'daki volkanik kayaçlarda yeni yapılan kimyasal analizlerin, Sr87/Sr86 ölçümlerinin ve radyometrik yaş belirlemelerinin yorumu: Türkiye Jeoloji Kurultayı-1985 Bildiri özetleri Kitabı, 34 ve Geol. Rdsch (baskıda).
• Fytikas, M.; Giuliani, O.; Innocenti, F.; Marinelli, G. ve Mazzuoli, R., 1976, Geochronoligical data on recent magmatism of the Aegean Sea: Tectophysics, 31, T29-T34.
• ; ; ; Manetti, F.; Mazzuoli, R.; Peccerillo, A. ve Villari, L., 1980, Neogene volcanism of the northern and central Aegean region: Ann. Geol. Pays. Hellen., 30, 106-129.
• Gevrek, A.İ. ve Şener, M., 1985, Çanakkale-Tuzla jeotermal sahasının hidrotermal alterasyon etüdü: MTA Rap. (baskıda), Ankara.
• Gözler, Z.; Ergül, E.; Akçören, F.; Genç, Ş.; Akat, U. ve Acar, Ş., 1983, Çanakkale boğazı doğusu-Marmara denizi güneyi-Bandırma-Balıkesir-Edremit ve Ege denizi arasındaki alanın jeolojisi ve kompilâsyonu: MTA Rap., 7430 (yayımlanmamış), Ankara.
• Helgeson, H.C., 1969, Thermodynamics of hydrothermal systems at elevated temperatures and pressures: Am. Jour. Sci., 267, 729-804.
• Irvine, T. N. ve Baragar, W.R.A., 1971, A guide to the chemical dassification of the common volcanic rocks: Can. Jour. Earth. Scien., 8, 523-548.
• Innocenti, F.; Manetti, P.; Mazzuoli, R.; Peccerillo, A. ve Poli, G., 1977, REE distribution in Tertiary and Quaternary volcanic rocks from central and Western Anatolia: 6. Ege Ülkeleri Kollokyumu Tebliğler Kitabı, (baskıda), İzmir.
• ; ; ; Pasquare, G. ve Villari, L., 1982, Neogene and Quaternary volcanism in Anatolia and NW Iran: Orogenic Andesites da, John Wiley Sons, 327-349, New York.
• Jakes, P. ve White, A.J.R., 1972, Major and trace element abundances in volcanic rocks of orogenic areas: Geol. Soc. Amer. Bull., 83, 28-40.
• Macdonald, G.A. ve Katsura, J., 1964, Chemical Composition of Hawaiian lavas: Journal of Petrology, 5, 82-133.
• Miyashiro, A., 1975, Island arc volcanic rock series, A critical review: Petrologie, 1/3, 177-187.
• Morrison, G.W., 1980, Characteristics and tectonic setting of the shoshonite rock association: Lithos, 13, 97-108. Montoya, J.W. ve Heurley, J.J., 1975, Activity relations and stabilities in alkali feldspar and mica alteration reactions: Econ. Geol. 70, 577-594.
• Öngür, T., 1973, Çanakkale-Tuzla yöresinin volkanolojisi ve jeotermal enerji olanaktan: MTA Rap., 5510 (yayım- lanmamış),Ankara.
• Öngür, T., 1978, Behram kalderası, KB Anadolu: TJK 32. Bilimsel ve Teknik Kurultayı Bildiri özetleri Kitabı, 42.
• , 1980, Yerısıl dizgelerde hidrotermal alterasyon: Yeryuvarı ve İnsan, 5/3-4, 52-59.
• Pe-piper, G., 1980, Geochemistry of Miocene shoshonites Lesbos, Greece: Contrib. Mineral. Petrol., 72, 387-396.
• Peccerillo, A. ve Taylor, J.R., 1976, Geochemistry of Upper Cretaceous volcanic rocks from the Pontic chain, Northern Turkey: Bull. Volcan., 39/4, 557-569.
• Rittmann, A., 1962, Volcanoes and their activity: John Wiley and Sons, 305 s., Nevv York. London,
• Streckeisen, A., 1976, dassification of the common igneous rocks by means of their chemical Composition, A provisional attempt: N. Jb. Für Miner. Monatsc., 1-15.
• Şâmilgil, E., 1966, Çanakkale'nin Tuzla ve Kestanbol sıcak su havzalarında jeotermal enerji araştırması yönünden hidrojeolojik etüt: MTA Rap., 4274 (yayımlanmamış), Ankara.
• , 1983, Çanakkale jeotermal alanları ve Tuzla sondajları: Türkiye Jeoloji Kongresi Bült., 4, 147-158.
• Zanettin, B., 1984, Proposed new chemical dassification of volcanic rocks: Episodes, 7/4, 19-20.