1. Kütahya (Batı Anadolu) ve çevresinde yüzeylenen Miyosen yaşlı volkanik kayaçların mineral kimyası ve püskürme öncesi kristallenme koşulları.
- Author
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TEMİZEL, İrfan, ARSLAN, Mehmet, ÖZKUL, Cafer, and ÖZBURAN, Muzaffer
- Subjects
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VOLCANIC ash, tuff, etc. , *ORTHOPYROXENE , *PLAGIOCLASE , *ANDESITE , *CONTINENTAL crust , *OLIVINE - Abstract
The studied Miocene volcanic rocks are observed in the Örenköy, Fındıkköy, and Kızılkaya Tepe regions in and around the Kütahya area. The Örenköy volcanic rocks consist of augite basalt, basaltic andesite and andesite, and show hyalo-microlitic porphyritic and cumulophyric texture, and contain plagioclase (An70-82Ab17-29Or1-2), clinopyroxene (Wo40-44En41-52Fs6-16), orthopyroxene (Wo1-4En64-71Fs27-34) olivine (Fo86-90) and Fe-Ti oxide. The Fındıkköy volcanic rocks include augite trachybasalt, augite basaltic trachyandesite and trachyandesite, and show hyalo-microlitic porphyritic and intersertal texture, and generally contain plagioclase (An58-88Ab12-38Or1-5), clinopyroxene (Wo44-48En38-47Fs8-17), olivine (Fo41-63) and Fe-Ti oxide, while the andesitic ones also contain biotite. The Kızılkaya Tepe volcanic rocks contain augite basalt, augite basaltic andesite and trachyandesite, and exhibit hyalomicrolitic porphyritic, vesicular, intersertal and trachytic texture, and include plagioclase (An53-85Ab14-44Or0-3), clinopyroxene (Wo39-46En41-52Fs8-16), orthopyroxene (Wo2-3En73-75Fs21-25), olivine (Fo52-82) and Fe-Ti oxide. In addition, the pre-eruptive crystallization conditions of the volcanic rocks were estimated using mineral chemistry analyses and thus it was determined that the magmas of the volcanic rocks have evolved by fractionation in magma chambers of the upper continental crust. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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