Ph.D. Tezi Görüntüleme

Student:	Ayla Hanedan Nar
Supervisor:	Prof. Dr. Burhan SADIKLAR
Department:	Jeoloji Mühendisliği
Institution:	Graduate School of Natural and Applied Sciences
University:	Karadeniz Technical University, Turkey

Title of the Thesis:	Petrographical, Mineralogical, Mineral Chemistry and Geochemical Characteristics of Büyük Yaylâ Obsidians (İkizdere-Rize)
Level:	Ph.D.
Acceptance Date:	21/11/2008
Number of Pages:	143
Registration Number:	Di663

Summary:

Petrographical, Mineralogical, Mineral Chemistry and

Geochemical Characteristics of Büyük Yaylâ Obsidians (İkizdere/Rize)

Büyük Yaylâ Obsidians are represented by the latest product of the mgmatic units in the study area. The unit is given an age between 1,7 ± 0,28 ma and 2,00 ± 0,24 ma on the basis of 40Ar/39Ar age determinations. Late Cretaceous aged basalt, andesite and their pyroclastics, cut by İkizdere Granitoides, form the basement of the investigate area. Granitoides are unconformably overlain by basanite, trachyandesite, felsite (rhyolite), and obsidians.

temperature, Gas transition temperature