山东上邸家沟地区地质特征及铜矿找矿方向
摘要
上邸家沟地区地层不发育,大面积发育中生代燕山晚期埠柳序列大水泊单元和伟德山序列任家沟单元侵入岩。区内构造以断裂为主,按走向可分为近SN向、NE向和NW向三组。区内共发育三条蚀变碎裂岩带,均赋存在断裂带中,其中发育一条铜矿体。矿化蚀变主要有硅化、绿泥石化、碳酸盐化、黄铁矿化、黄铜矿化、孔雀石化等。根据本区控矿地质条件,结合矿化特征、矿物组合及围岩蚀变特点,该区矿床成因属于岩浆期后热液充填交代型矿床。
The strata of Shangdijiagou area are not well developed, but the late Yanshanian Buliu sequence large Shuipo unit and Weideshan sequence Renjiagou unit intrusive rocks are developed in large area. The structures in the area are dominated by faults and can be divided into three groups according to the strike: near SN direction, NE direction and NW direction. There are three altered cataclastic rock belts in this area, all of which are located in the fault zone, in which a copper body is developed.Mineralization and alteration mainly include silicification, chloritization, carbonatization, pyritization, brass mineralization, peacocks and so on. According to the ore-controlling geological conditions, combined with the characteristics of mineralization, mineral assemblage and wall rock alteration, the genesis of the deposit in this area belongs to the post-magmatic hydrothermal filling metasomatic deposit.
The strata of Shangdijiagou area are not well developed, but the late Yanshanian Buliu sequence large Shuipo unit and Weideshan sequence Renjiagou unit intrusive rocks are developed in large area. The structures in the area are dominated by faults and can be divided into three groups according to the strike: near SN direction, NE direction and NW direction. There are three altered cataclastic rock belts in this area, all of which are located in the fault zone, in which a copper body is developed.Mineralization and alteration mainly include silicification, chloritization, carbonatization, pyritization, brass mineralization, peacocks and so on. According to the ore-controlling geological conditions, combined with the characteristics of mineralization, mineral assemblage and wall rock alteration, the genesis of the deposit in this area belongs to the post-magmatic hydrothermal filling metasomatic deposit.
引文
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