| 陈昌明,曾令高,张均.皖南地区天井山金矿的矿化时空结构及矿体定位规律[J].地质找矿论丛,2015,30(2):199-207 |
| 皖南地区天井山金矿的矿化时空结构及矿体定位规律 |
| Spatial and temporal structure of mineralization and ore body location law in Tianjingshan gold deposit, southern Anhui province |
| 投稿时间：2014-01-20 修订日期：2014-05-11 |
| DOI：10.6053/j.issn.1001-1412.2015.02.006 |
| 中文关键词: 天井山金矿 石英脉型 蚀变岩型 千糜岩型 矿化时空结构 矿体定位规律 安徽省 |
| 英文关键词:Tianjingshan gold deposit quartz vein type altered cataclastic rock type phyllite sapatial and temporal structure of gold mineralization location pattern of ore body Anhui province |
| 基金项目:安徽省国土资源科技项目"皖南地区大型韧性剪切带与金成矿作用研究"(编号: 2013-K-02)资助。 |
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| 中文摘要: |
| 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。 |
| 英文摘要: |
| 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. |
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