摘要
对辛庄金矿的成矿地质条件、控矿因素及矿化富集标志进行研究;结合本区地质特征,总结辛庄金矿床的主要成矿要素,建立辛庄金矿床的成矿模式。研究结果表明:区内五台群金刚库组地层为矿床的形成提供了部分成矿物质;北西向区域性张性大断裂(龙山断裂和义兴寨断裂)及其强烈挤压下形成的北西向次级断裂是本区的主要控矿构造,为成矿物质的就位提供了有利的空间;燕山期的岩浆侵入活动为成矿提供了大量的成矿物质和热能,是成矿的首要因素;五台群金刚库组地层、北西向区域性张性大断裂、燕山期岩浆岩、以硅化、黄铁矿化以及绢云母化为主的围岩蚀变及主脉带与围岩之间的接触带是本区的关键控制因素;多金属硫化物阶段以及热液蚀变的广泛发育是其矿化富集标志。
The geological conditions, ore control factors and mineralization enrichment marks were studied, the metallogenic essential factors were summarized and the metallogenic model was established. The results show that the strata of Jingangku formation of Wutai group provides part of the ore-forming material. The NW regional striking tensional fractures （Longshan fracture and Yixingzhai fracture） and NW secondary fractures formed by strong extrusion of these two fractures are the main ore-controUing structures in this area, and they provide the favorable place for the emplacement of ore-forming material. Magmatic activities of Yanshanian produce a large number of ore-forming material and energy, which is the primary factor for mineralization. The strata of Jingangku formation of Wutai group, the NW regional striking tensional fractures, the magmatic rock of Yanshanian, the wallrock alteration main silicified, pyritized and the contact zone between the main vein with surrounding rock are the key ore control factors. Polymetallic sulphides stage and hydrothermal alteration extensive development are the marks of mineralization enrichment.
出处
《中南大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2013年第5期1948-1954,共7页
Journal of Central South University:Science and Technology
基金
国土资源部公益性行业科研专项经费项目04课题(200911007-04)
教育部新世纪优秀人才支持计划项目(NCET-10-0791)
全球铜矿分布规律与找矿战略区划研究项目(国土资厅发[2011]7号)
中南大学有色金属成矿预测教育部重点实验室联合资助项目(2008年)
关键词
成矿地质条件
控矿因素
矿化富集标志
成矿模式
辛庄金矿床
geological conditions
ore control factors
mineralization enrichment marks
metallogenic model
Xinzhuang gold deposit
