FORMATION OF MAGNESITE MINERALIZATIONS FROM ESKISEHIR - ERENKOY, NORTHWESTERN TURKEY: A STABLE ISOTOPE STUDY


KEPEKLI T. A., MARAL M., Suner F., Kilinc A., MARAL D.

FRESENIUS ENVIRONMENTAL BULLETIN, vol.22, no.8, pp.2297-2300, 2013 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 22 Issue: 8
  • Publication Date: 2013
  • Journal Name: FRESENIUS ENVIRONMENTAL BULLETIN
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.2297-2300
  • Istanbul Technical University Affiliated: Yes

Abstract

A new type of magnesite mineralization in Eskisehir - Erenkoy in northwestern Turkey is reported. The mineralization is located in the Izmir - Ankara suture zone, associated with ultramafic rocks which lie on top of metamorphites. The deposits are heavily deformed due to tectonic effects. Magnesites have been analyzed for their delta C-13 and delta O-18 stable isotope contents in order to determine the origin of mineralizing fluids. Results show mean values of -8.4 for delta C-13 and 31.9 for delta O-18. The CO2 responsible for the mineralization is postulated to be a mix of atmospheric origin and decarboxylation of organic sediments.