Re-Os molybdenite ages of granitoid-hosted Mo–Cu occurrences from central Anatolia (Turkey)

摘要: Abstract The Central Anatolian Crystalline Complex (CACC), where many granitoids are emplaced and related ore occurrences/deposits occur, is tectonically located in the Alpine–Himalayan Belt. CACC hosts numerous (Cu, Mo, Fe, Pb Zn) that spatially associated with granitoids. calc-alkaline Karacaali, Baliseyh Basnayayla form northern granitoid belt of host important Mo–Cu occurrences. In this paper, we document Re–Os isotopic age data molybdenites to determine timing granitoid-hosted mineralizations CACC. Re content molybdenite significantly higher (108.9–148.5 ppm) than from Karacaali (16.3–74.8 ppm) (4.2 ppm). Two samples two occurrences give ages ranging 73.8 ± 0.4 76.2 ± 0.4 Ma 77.1 ± 0.4 78.0 ± 0.4 Ma, respectively. Furthermore, one sample gives a 73.6 ± 0.4 Ma age. These consistent those post-collisional indicate close relationship between mineralization events granitic magma differentiation–crystallization processes. new obtained study show developed earlier (78–77 Ma) East (Basnayayla) as compared West (76–73 Ma) (Karacaali Basliseyh) central Anatolia. Moreover, 76.2 Ma, which very Basnayala (78 77.1 Ma). According these data, possible explanation older probably represent period crystallization–differentiation On other hand, younger (73.8 Ma) may prolongation life magmatic–hydrothermal processes/cycles and/or remobilization molybdenum within solidified system by intrusion basic magma.