Geochemical Analysis and Genesis Interpretation of the Gazipasa (Antalya) Barite Deposits


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Boztaş S., Özer Atakoğlu Ö., Yalçın M. G., Bektay Y., Turysbekova G.

International Symposium on Advanced Engineering Technologies (ISADET), Kahramanmaraş, Turkey, 16 - 18 June 2022, pp.381-382

  • Publication Type: Conference Paper / Summary Text
  • City: Kahramanmaraş
  • Country: Turkey
  • Page Numbers: pp.381-382
  • Akdeniz University Affiliated: Yes

Abstract

The average rate of barium element in the earth's crust is 0.45%. At low temperatures, dissolved sulphate and barium-rich fluids form barite deposits on the seafloor. These barium-rich deposits also contain high concentrations of elements such as Fe, Cu, Zn, Pb, Cd, As, Sb, Se. Barite deposits can be formed in four main types of origin: hydrothermal, sedimentary, residual and other types. Barite deposits, which are mostly sedimentary in origin, are found together with lead and zinc in the cavities in the limestones. With the effect of high temperature fluids, minerals such as hematite, anglesite and celestite are found in the formation paragenesis of barite ore. The study area, located in Antalya Gazipaşa region, has a large reserve for barite ore of industrial importance. The barite deposit is found in the study area as NE-SW trending and NW inclined. In terms of ore thickness, from centimeters to 4-6 m; In terms of length, it has a length of 50-100 meters. In this study, it is aimed to reveal the geochemistry and genesis of the barite deposit in Antalya Gazipaşa. Mineralization of the deposit, elemental chemistry and 34S isotope ratios were analyzed. The information learned as a result of the analyzes was used to interpret the formation conditions and origins of the barite found in the region. XRD, XRF and 34S isotope analyzes were performed on thirty samples collected from the study area. It was determined that the barite mineralization in the region was formed within the Permian aged Bıçkıcı formation. Barite enrichments were observed in the voids and pores of the dolomite and limestones in the formation. The minerals found in the paragenesis of the barite deposit, which has a filon and vein type mineralization, are listed as follows; barite (BaSO4), calcite (CaCO3), dolomite / ankerite (CaMg(CO3)2), quartz (SiO2), galena (PbS). The Br/Sr ratios of the barite deposit whose elemental geochemistry was revealed were 16.09 - 503.99; The results of 34S isotope analysis were found to vary between 20.3 and 22.4. As a result of the study, using the results of XRD, XRF and 34S isotope analyzes, it was thought that the barite deposit formed in the region came from a synsedimentary origin. The formation conditions of the barite deposit, on the other hand, were interpreted as vein and filon type mineralization with lead and zinc in the pores of dolomite and limestones at higher temperatures before the hydrothermal phase.