摘要
香山铜镍矿床属典型的岩浆型铜镍硫化物矿床,产于东天山东段黄山-镜儿泉铜镍成矿带中,矿床形成主要受岩浆作用和构造作用控制.岩浆作用为矿床的形成提供了物质来源及成矿元素的熔离富集,构造作用为成矿物质提供了上侵通道和容矿空间.矿区断裂构造以韧性剪切带为主,具多级构造组合特点,共划分出4级构造层次,各级构造与成岩成矿有密切关系.Ⅰ级构造控制基性-超基性岩带的分布;Ⅱ级构造控制基性-超基性岩体群的分布;Ⅲ级构造控制基性-超基性岩体或矿体的形态、产状;Ⅳ级构造控制岩相带或矿体的产出.
Xiangshan Cu-Ni Deposit belongs to the typical magmatic Cu-Ni sulfide deposity, which locates in the Huangshan-Jin抏rquan Cu-Ni Metallogenic Zone, the east section of the East Tianshan.The forming of deposit was controlled by the magmatism and tectonic evolution. The magmatism not only provided with material sources of the lithgenesis & matallization,but also led to the matallogenic elements抣iquation & enrichment, and the tectonic evolution supplied the intrusive passages and the host space for rock & ore. The main fault structure form in Xiangshan ore district is ductile shear zone, which is composed of several structure levels, and each level is close related to the controls of lithogenesis and metallization. According to the structure compose features, the writer distinguished four levels from the faults in the ore district. The first level(Ⅰ) is the Huangshan-Jin抏rquan fault complex, which is expressed in different structure levels from depth to the shallow, different deformation domain, had underwent several periods tectonic evolution. It is complex lineament composed of main fault\fault blocks\companion faults etc., and including ductile shear zone\fragility-ductile fault\fault block and companion magmatic rock bodies. It controls the distribution of basic-ultra basic rock belt; The second level (Ⅱ) structure is a group of ductile-shear-zone, which locates within the Huangshan-Jin抏rquan fault complex, strikes to the E-W, is controlled by the fault complex, does not extend outside the boundary faults, belongs to the depth level ductile-shear-zone, and controls the distributions of the basic-ultra basic rock body group; The third level structure (Ⅲ) is a group of schistose ductile-shear-zone, strikes to the NE60Oor so, with the same strike of the Xiangshan basic-ultra basic rock complex, and controls the shape and attitude of basic-ultra basic rock body or/and ore bodies. The fourth level structure(Ⅳ) are composed of fragility-ductile shear zone and fragility faults, belong to the shallow lev
出处
《新疆地质》
CAS
CSCD
2003年第2期195-198,共4页
Xinjiang Geology
