Akademik Veri Yönetim Sistemi
International Symposium on Advanced Engineering Technologies (ISADET), Kahramanmaraş, Türkiye, 16 - 18 Haziran 2022, ss.26-27
Manganese
is the tenth most abundant element in the earth's crust. These deposits form
under conditions of reduced acidic fluids, appropriate oxygen and pH. Manganese
deposits have formed extensively in oceans, shallow seas and lakes throughout
geological time. They occur in different tectonic regions such as island arc,
intraplate seamounts or subduction zones. Manganese deposits formed in
limestones have a higher Fe concentration than manganese deposits formed in
radiolarites; shows a lower Si concentration. The deposits are divided into
three main groups according to the chemical composition of Fe-Mn and the
geological environment conditions; diagenetic, hydrogenetic and hydrothermal. Diagenetic
and hydrothermal manganese deposits have high Mn/Fe content and are poor in
trace elements. These types of manganese deposits are high in Mn and Si; they
are found in low concentrations in terms of Al and Fe. The aim of this study is
to investigate the manganese deposit located within the borders of Kumluca in
Antalya province in detail, regionally, geologically, geochemically and
originally. Extraction of manganese ore, which constitutes a large reserve in
the region, its chemical composition and geological environment is aimed within
the scope of the study. In this context, XRF and XRD analyzes were performed on
samples collected from the field. In addition, regional geology has been
studied in detail. The region is suitable for the formation of manganese
deposits with tectonic environmental conditions. It is possible to divide the
rocks in the study area into autochthonous and allochthonous origins Alakırçay Melange,
which is located within the Antalya nappes of allochthon origin, is the
formation in which manganese ore is found. XRD analysis with 10 samples collected from the
field provided an understanding of the mineralogical composition of manganese
ore. The minerals of the unit, which is characterized by chert and radiolarite,
are listed as follows; quartz, pyroluzoite, psilomelon and manganite. As a
result of XRF analysis made with 43 samples collected from the field, low Al2O3
and Fe2O3; high levels of SiO2 and MnO were
found. Average Al2O3, Fe2O3, SiO2
and MnO values were found as follows, respectively; 1.31%, 1.59%, 66.78% and
14.36%. The origin extracted using various geochemical diagrams has been
interpreted as hydrothermal. The manganese deposit, which shows hydrothermal
formation, generally formed as laminated, stratabound and epithermal veins.