Geoloci{dotless}gal setti{dotless}ng and geochemical characteri{dotless}sti{dotless}cs of kuşkayasi{dotless} manganese deposi{dotless}t,otlukbeli,erzincan,türkiye [Kuşkayasi{dotless} (otlukbeli - erzincan) manganez yataǧi{dotless}ni{dotless}n jeolojik yerleşimi ve jeokimyasal özellikleri]

İn the northern parts of otlukbeli the volcaniclastic rocks which belong to liassic aged kelkit formation,are found on the bottom. these rocks are overline by the hozbirik yayla limenstones which are formed by micritic limenstones of malm-lower cretoceaus. the otlukbeli melange has been trusted on these limenstones and was formed and located in the aptian and albian. all o these units are cross cut by the sari{dotless}han granitoid of campanian age. youngest unit of the area is the sari{dotless}taşlar formation,which composed of conglomerate,sansstone and shale alternation. the mn mineralizationsin the area are found in the radiolarites within the otlukbeli melange. the most important of these mineralizationsis the kuşkayasi{dotless} ore deposit. the vein shaped deposit is 180 m. in length,2 m. in average thickness and has a width more than 40 m. in dip direction. the major ore minerals are braunite,pyrolusite,psilomelane,bixibite and manganite. the interpretation of geochemical diagrams prepared for major and trace elements contens revealed that the ore deposits was hydrothermal in origin. at present he ore deposits contains commercially more than 12.000 tons of mn.