【摘要】 菲律宾位于环太平洋铜矿成矿带西带的外带上,分布有较多的斑岩型铜矿床.斑岩型Cu-Au-Mo矿床与白垩纪-渐新世辉绿岩、蛇纹岩、闪长斑岩侵入有关,含矿斑岩具有来源深、就位浅、多期次侵位、各期次侵位空间共存的特征.大洋板块的俯冲是形成斑岩铜矿床的主要因素.大洋板块俯冲形成了adakite和含矿斑岩,导致了大洋板块的膝折和撕裂,形成撕裂构造窗,控制斑岩铜矿床的分布.由于板块俯形成的撕裂带影响,形成了NW向切割造山带的正断层为特征的断裂系统,是控制含矿斑岩浅成侵位和矿床空间分布的重要构造系统,特别是大型线性构造或线性构造的交汇部位,是沟通浅表与深部过程的高渗流带和含矿斑岩岩浆上升侵位的重要通道,与板块俯冲形成的撕裂构造窗相联结,更趋于形成大型斑岩铜矿.更多还原

【Abstract】 Philippines lies in the outer copper ore zone of the western encircle Pacific belts,and has more porphyry-type copper deposits.porphyry-type Cu-Au-Mo deposits have a relation with diabase,serpentinite,diorite porphyry intrusions in the Cretaceous-Oligocene,and the meta-rocks have the characteristics of deep source,shallow place,several stages of emplacement and coexistence of the emplacement space.Oceanic plate subduction is the main factor for the formation of porphyry-type copper deposits.Oceanic plate subduction occurs in adakite and porphyry Meta-rocks,which leads to the ocean plate kink and slab tear.Slab tear formed slab window which controls the distribution of porphyry-type copper deposits.Plate subduction slab tears formed the trend NW normal faults system,which was important structural systems controling the ore-bearing porphyry and epithermal deposits emplaced spatial distribution.Particularly large-scale linear structure or the linear structure intersection area,whitch are important channels of high-flow zone and the ore-bearing porphyry emplacement of magma rising,with the slab window of oceanic plate subduction,is apt to induce large-scale porphyry-type copper deposits.更多还原