中国科技核心期刊
美国化学文摘社（CAS）数据库
美国EBSCO学术数据库
日本科学技术振兴机构数据库(JST)
小秦岭金矿田S60矿脉控矿断裂特征及控矿作用分析
- 作者：
孙保花1，2，丁培超1，2*，冯绍平1，2，李晶晶1，2，王鹏飞1，2，沈瑞峰1，2，薛志强1，2
- 作者单位：
- （1. 河南省第一地质矿产调查院有限公司；2. 河南省金银多金属成矿系列与深部预测重点实验室）
基金项目：
- 河南省地矿局管地质勘查项目（豫地矿〔2022〕03号）；河南省自然资源科研项目（豫自然资函〔2022〕07号）；河南省财政项目（豫自然资发〔2020〕18号）
详细信息：
- 作者简介：
- 孙保花（1988—），男，工程师，硕士，从事成矿规律与成矿预测研究工作；E⁃mail：790450046@qq. com
- PDF下载
Characteristics and ore‑controlling effect of the ore‑controlling fault in the S60 vein of the Xiaoqinling Gold Field
- English Author：
Sun Baohua¹，², Ding Peichao¹，², Feng Shaoping¹，², Li Jingjing¹，², Wang Pengfei¹，², Shen Ruifeng¹，², Xue Zhiqiang¹，²
- Unit：
- （1. Henan First Geological and Mineral Survey Institute Co., Ltd.; 2. Key Laboratory of Au-Ag-Polymetallic Deposit Series and Deep‑seated Metallogenic Prognosis of Henan Province）
- 摘要
- 在线预览
- 参考文献
摘要:
小秦岭金矿田是中国重要的金矿集区，S60矿脉作为其中大型金矿脉典型代表，对区域矿产分布具有决定性作用，研究其控矿断裂特征及控矿作用意义重大。采用三维地质建模技术，对 S60矿脉控矿断裂的形态、产状、分期及成矿规律展开研究。结果显示，该断裂呈北西西向展布，具多期多阶段活动特征，先后经历韧性、韧脆性、脆性等变形阶段。断裂形态走向上呈舒缓波状，倾向上具有规律性变化特征，构造形态的规律性变化与矿体的赋存关系密切，主矿体主要赋存于倾角 30°～46°的区段。断裂控矿机理与矿质的运移、沉淀关系密切，张性结构面利于含矿流体迁移和聚集，最终富集成矿，且控矿断裂的多期变形对 S60矿脉的形成和保存影响各异。本研究可为小秦岭金矿田成矿机制、演化过程研究及深部找矿突破提供重要依据。
关键词:
S60矿脉；控矿断裂；控矿作用；三维地质建模；小秦岭；金矿田；金矿集区
Abstract:
The Xiaoqinling Gold Field is one of the major gold mineralization clusters in China. The S60 vein, atypical representative of large⁃scale gold veins in the area, plays a decisive role in the regional mineral distribution.Investigating the characteristics and ore⁃controlling effect of the ore⁃controlling fault is of great significance. Using 3Dgeological modeling technology, this study examines the morphology, orientation, evolutionary stages, and metallogenicpatterns of the ore⁃controlling fault in the S60 vein. Results show that the fault trends NWW and has experienced multiplestages of activity, including ductile, brittle⁃ductile, and brittle deformation. The fault displays a gently undulating geometryalong strike and shows systematic variations in dip direction. These regular structural changes are closely related toorebody occurrence, with the main orebody mainly hosted in segments with dip angles ranging from 30° to 46° . Theore⁃controlling mechanism is closely linked to the migration and precipitation of ore⁃forming materials. Tensile structuralplanes facilitated the migration and accumulation of ore⁃bearing fluids, ultimately leading to mineral enrichment. Themulti⁃stage deformation of the ore⁃controlling fault had varying impacts on the formation and preservation of the S60vein. This study provides critical insights for understanding the metallogenic mechanism and evolutionary process ofthe Xiaoqinling Gold Field and offers guidance for deep ore prospecting breakthroughs.
Keywords:
S60 vein; ore⁃controlling fault; ore⁃controlling effect; 3D geological modeling; Xiaoqinling; gold field;gold province
