特提斯构造域西段晚白垩世以来Cu、Au矿床时空分布和成矿地质特征OA

The complex tectonic evolutionary history of the western segment of the Tethyan Orogenic Belt(zone)has made it an important Cu and Au polymetallic mineralization belts.In-depth research on the mineralization process and summarizing the mineralization laws in this area is scientifically important for enhancing the level of basic regional geological research and guiding mineral exploration practices.Regional geological and mineral resource data were systematically collected and comprehensively analyzed,focusing on elucidating the metallogenic characteristics,resource endowment conditions,spatiotemporal distribution patterns of deposits,and their tectonic-magmatic metallogenic contexts.Since the Late Cretaceous,the study area has undergone multiple tectonic-magmatic events,including oceanic and continental subduction,orogeny,back-arc extension,slab rollback and tearing,and asthenospheric upwelling.These dynamic mechanisms collectively control large-scale regional Cu-Au mineralization.To date,the area has revealed 39 large to super-large Cu-Au deposits and 31 medium-sized deposits,with numerous small deposits and widely distributed mineral occurrences,demonstrating substantial metallogenic potential.The regional deposits exhibited distinct spatiotemporal patterns.Cu-Au mineralization can be classified into the Late Cretaceous Apuseni-Banat-Timok-Srednogorie Cu-Au Belt(93-72 Ma),Late Cretaceous-Paleocene East Pontides Cu-Au Belt(88-59 Ma),Late Cretaceous East Tauride Cu Belt(81-71 Ma),Eocene Southeastern Anatolian Cu-Au Belt(54-37 Ma),Eocene-Pliocene North Macedonia-Rhodope-North Aegean Au-Cu Belt(50-3 Ma),Oligocene Tunceli Cu-Au Zone(～26 Ma),and Miocene Carpathians-Alpine Cu-Au Zone(15-8 Ma).