Fluid inclusion studies in the Cu-Pb-Zn mineralizations associated with Elazığ magmatits in the north of Harput (Elazığ)

Kızıldağ-Köprücük Cu-Pb-Zn mineralizations are located in the north of Harput (Elazığ) in Eastern Turkey. This thesis includes fluid inclusion studies in quartzs of quartz veinlets associated with the mineralizations. Different salinity and homogenization temperature values were determined in the primary and the secondary fluid inclusions. The primary fluid inclusions have homogenization temperatures between 258 and 700 °C, and salinities between 33 and 45.21 equiv. wt % NaCl. The secondary fluid inclusions homogenization temperatures are between 199 and 214 °C, and salinity values are between 5 and 15 equiv. wt % NaCl. As a result it is concluded that; two physcio-chemically distinct fluids circulated at different times in granitic rocks as the hydrothermal system evolved: an early hypersaline and hot brine and later more dilute fluids. Initial ore mineralizations, quartz formations and sericitic wall rock alterations (pyllic zone) were produced by early hypersaline hydrothermal solutions and meteoric water diluted hydrothermal solutions formed kaolinitic wall rock alteration and secondary inclusions. Key Words: Alteration, Cu, Pb, Zn, Homogenization temperature, salinity, Kızıldağ, Turkey