豫西次级拆离断层对金矿成矿的控制作用——以河南槐树坪金矿为例  

The Controlling of Secondary Detachment Fault for Gold Mineralization in Western Henan Province:Taking Huaishuping Gold Mine as an Example

作　　者：梅秀杰[1] 张参辉[1] 杨显道[1] 郭玉溪[1] 

机构地区：[1]河南省地质矿产勘查开发局第二地质矿产调查院,河南郑州450001

出　　处：《黄金科学技术》2014年第2期7-12,共6页Gold Science and Technology

基　　金：河南省国土厅地质科技项目"河南省嵩县东湾-槐树坪金矿区地球化学特征及成矿预测研究"(编号:012-53)资助

摘　　要：槐树坪金矿区位于熊耳山断隆和谭头—嵩县新生代断陷盆地之间,研究表明,中—新生代缓倾斜滑脱拆离断层的次级缓倾斜断裂为槐树坪金矿成矿提供了良好的赋矿空间。矿区揭露的燕山期花岗斑岩体(或隐伏斑岩体)是含矿热液的提供者,含矿热液在适宜的物理化学条件下,沿矿脉或断裂上升至次级缓倾斜断裂中沉淀且富集成矿,矿床规模已达大型。中—新生代缓倾斜滑脱拆离断层属区域大断裂,其次级缓倾斜断裂广泛发育在嵩县南部和洛宁等地区,是有利的赋矿空间,综上可见,缓倾斜次级断裂在区域上的找矿前景非常广阔。Huaishuping gold area is located between the Xiong’er Mountain fault and the rift basin of Tantou-Songxian in Cenozoic,research shows that the secondary gentle-dipping faults of gentle dip slip-detachment fault in Meso-Cenozoic has provides the ore-hosting sites for ore-forming of the Huaishuping gold deposit.The Yanshan granite porphyry （or buried porphyry） which revealed has provided the ore-forming fluids.Hydrothermal along veins or fracture rise to secondary gentle-dipping faults and enrichment and mineralization of gold under optimal physical and chemical conditions.The scale of Huaishuping gold deposit has reached large size.The gentle dip slip-detachment fault in Meso-Cenozoic is regional faults and their secondary gentle-dipping faults are widely developed in the south of Songxian and Luoning and so on and offer space for enrichment of metallogenic materials.Comprehensive studies have shown that the secondary gentle-dipping faults on the regional prospecting are very wide.

关 键 词：花岗斑岩体 缓倾斜断裂 滑脱拆离断层 地质特征 槐树坪金矿 河南省 

分 类 号：P618.51[天文地球—矿床学]