【摘要】 天井山金矿的矿化类型有石英脉型、蚀变岩型和千糜岩型,构成复合金矿化体系,各矿化类型的成因及时空配置具有密切的内在成生联系,组合产出特征明显。主成矿期成矿演化可以划分为微量金-石英阶段、金-单硫化物-石英阶段、金-多金属硫化物-石英阶段和微量金-萤石-方解石-石英阶段。矿体主要赋存于接触带构造及其附近,呈脉状、透镜状,膨大狭缩、尖灭再现、舒缓波状产出特征明显;断裂产状变化处及裂隙发育地段易于形成厚大富矿体,矿化发育程度与基性岩脉空间关系密切。矿体总体走向NE,具有浅部NW倾向、NE向侧伏,深部SE倾向、SW向侧伏的定位规律。其空间定位产出样式可分为外接触带型、接触带型和内接触带型。更多还原

【Abstract】 Tianjingshan gold deposit is a compound Au mineralization system with multi-mineralization types,including quartz vein,altered cataclastic rock and phyllite mineralization.The mineralizations are combinedly occurred in inherent genetic relation.Evolution of the main mineralization is divided into trace gold-quartz stage,gold-mono-sulfide-quartz stage,gold-polymetallic sulfide-quartz stage and trace gold-fluorspar-calcite-quartz stage.Ore bodies are located at or near the contact zone in vein,lens characterized by gentle wavy extension,swelling and narrowing or pinching-out.Big and rich ore body tends to be located at abrupt change of fault occurrence and densely developed fractures.Mineralization is closely related to basic dyke in space and time.The ore bodies generally extend NE,dip NW and pitch NE at shallow and dip SE and pitch EW.Spatially,location of the ore bodies is divided into outer contact zone type and inner contact zone type.更多还原