Geochemical significance and Formation of Suçatı Pb-Zn Deposits – Eastern Taurides

Geochemical significance and Formation of  Suçatı Pb-Zn Deposits – Eastern Taurides

Hatice Nur Bayram^(1)*, Ali Erdem Bakkalbaşı ^(1)*, Mustafa Kumral⁽¹⁾, Ali Tuğcan Ünlüer⁽¹⁾

⁽¹⁾Istanbul Technical University, Department of Geological Engineering, Istanbul/Turkey

(*E-mail: hnnurbayram@gmail.com)

 

The Middle Tauride Orogenic Belt is a productive enviroment in terms of Pb-Zn ore deposits, mostly associated with Permian aged dolomitized, shallow marine platform type carbonate rocks. There have been many studies on the origin of the ore deposits in the region, there are two important approaches that stand out for the formation of the ore deposits: the first theory is hydrothermal deposits with magmatic origin, and the other theory is Missisippi Valley-type (MVT) deposits related with the carbonate rocks commonly found in the region. Field studies at the Suçatı (Kayseri – Yahyalı, Central Anatolia, Turkey, East of Aladağlar extension of the Taurides) ore district in the Aladağ geologic unit indicate that the deposits in the region are associated with Paleo-Tethys limestones, fossiliferous limestones and dolomitic limestones. Mineralization is related to Lower Permian aged carbonate rocks include primary mineralization ore minerals as galena, sphalerite, smithsonite and goethite and as a product of hydrothermal activity, calcite mineral filled within fractures and cracks represents gangue minerals. As a result of geochemical analysis of the samples collected from the ore zones, PbO values range between 25.93% - 0.012%, ZnO values range between 51.01% - 0.042%, Fe₂O₃ values range between 42.81% - 10.21%. In conclusion hydrothermal activities closely related with compressional and extentional tectonic regimes took place in multiphase mineralization.

 

Keywords: Pb-Zn Deposits, MVT, Taurides, Yahyalı