Investigation of Usability as Industrial Raw Material of Olivine Occurrences: A Case Study from Gelendost - Isparta, Southwestern Turkey


CENGİZ O., Kursunluoglu M.

World Multidisciplinary Earth Sciences symposium (WMESS), Prague, Czech Republic, 5 - 09 September 2016, vol.44 identifier identifier

Abstract

Olivine occurrences are located in the northwest of Madenli and Egirler villages in Gelendost-Isparta, Southwestern Turkey. The aim of this study is to investigate usability as an industrial raw material of olivine formations in the peridotite. For this purpose, geological, mineralogical and geochemical properties of olivine-rich rocks outcropping in the field were examined. Allochthonous units belonging to Beysehir-Hoyran Nappes are formed in the Upper Eocene settlement aged Sarkikaraagac Ophiolites, the Upper Cretaceous Egirler Formation that contains wild flysch, and the Upper Triassic Deliktas Formation that consists of recrystallized massive limestone. The Anamas-Akseki Autochthonous units are the Jurassic-Cretaceous Hacialabaz formation, which consists of dolomite and limestone, the Neogene deposits and the Quaternary alluvium. Harzburgite and dunite are observed in peridotite at the bottom of Sarkikaraagac Ophiolite. They are dominant rocks of olivine occurrences in the field and include mainly olivine, enstatite, stockwork and vein magnesite, and locally chromite. The concentrations of major oxides for harzburgite samples vary between 41.98 and 44.59% SiO2, between 41.32 to 45.74% MgO, and between 8.75 and 9.82% Fe2O3. The samples ranged from 0.1-4.50% loss on ignition of significance for their usability. Major oxide contents and loss on ignition values of olivine-rich harzburgite samples in the study area partly comply with the standard values that have been determined to be suitable for usage in industry. Consequently, olivine occurrences in the study area are used as olivine sand in industry.