M.Sc. Tezi Görüntüleme

Student:	Hatice KADAYIFÇI
Supervisor:	Yrd. Doç. Dr. Hasan KOLAYLI
Department:	Jeoloji Mühendisliği
Institution:	Graduate School of Natural and Applied Sciences
University:	Karadeniz Technical University, Turkey

Title of the Thesis:	Mineralogical, Petrographic and Petrochemical investigation of Karadağ (Narman-Erzurum) and Parmakdere (Sarıkamış-Kars) ultramafic-mafic units
Level:	M.Sc.
Acceptance Date:	25/7/2008
Number of Pages:	139
Registration Number:	i1944

Summary:

Karadağ and Parmakdere mafic and ultramafic rocks have the later Lower Cretaceous and before Upper Cretaceous age. Overlying parts have generally Upper Cretaceous age.

Peridotites within the both of the massives have a deplated but gabbros are enrichment character for REE according to the chondridites.

Accessory chromitites in the peridotites have alpine and abyssal character, but chromites in the chromitites have podiform character.

Orthopyroxene and clinopyroxene in the peridotites are enstatite and diopsite, respectivelly, and fo number of olivine is more than 0,80. PGE contents of the chromitites below 1,0 and its pattern is a V shape character as podiform chromitites.

Karadağ and Parmakdere ultramafic rocks had an abyssal character initially, and later they underwent subduction related regime by boninitic magmatism which occures only supra-subduction zone. But, there is no idea for the orientation of subduction.