陕西小秦岭含金石英脉的矿化富集规律

J4 ›› 2008, Vol. 16 ›› Issue (5): 7-11.

陕西小秦岭含金石英脉的矿化富集规律

高军辉，黄建军

有色金属矿产地质调查中心，北京 100012

收稿日期:2008-06-02 修回日期:2008-06-20 出版日期:2008-10-27 发布日期:2011-07-06
作者简介:高军辉(1969-)，男，工程师，现主要从事矿产地质勘查与研究工作.

The Enrichment Regularities of Mineralization in Auriferous Quartz Veins at Xiaoqinling， Shaanxi

GAO Junhui, HUANG Jianjun

China Non ferrous Metals Resource Geological Survey，Beijing 10001 2，China

Received:2008-06-02 Revised:2008-06-20 Online:2008-10-27 Published:2011-07-06

摘要/Abstract

摘要：

本区处于华北地台南缘华山古陆北部太华隆起的陕西省境内，是我国金矿的重要密集分布区和产地。赋矿地层为太古宇太华群，通过近几年的研究在本区虽然发现了如构造破碎蚀变岩型、复合型等金矿新类型，但含金石英脉型无论矿床(点)产出的数量、储量和产量均占举足轻重的地位。因此该类型的矿床仍是我们研究的重要对象或进行深部找矿探查的依据。研究表明含金石英脉在空间的分布，不受太华群某个层位的限制，主要与成矿期断裂构造性质、产状和规模有关，因此含金石英脉在空间的分布主要与它所处的构造环境有关。统计结果表明含金石英脉脉体产出的数量、规模及含矿性有一定的规律，找矿工作中应重视对规模较大的脉体的评价，尤其大脉产状由陡变缓或有多期次构造活动的叠加处含矿性明显的增强，对评价找矿十分有利。同时含矿体在不同标高，因所处的构造环境不同，物理化学条件的差异，成矿阶段矿化元素的强弱不同，导致矿化在不同标高富集，这些重要的矿化富集规律为我们快速有效的进行地表或深部找矿有重要意义。

关键词: 陕西小秦岭, 含金石英脉, 产出特点, 矿化富集规律

Abstract:

Located in Shaanxi．Taihua uplift at the north of Huashan ancient land in the southern margin of North China Platform，this region has been a major gold distribution area with a significant production history．Host strata are dominated by Archean Taihua Group．Auriferous qz vein type gold deposits have been playing a key role in terms of the quantity，reserves and production(of gold deposits)，despite that some other new types such as structure Zone altered rock style and Composite gold deposits were discovered in this area during recent years． Therefore，auriferous qz vein gold deposits are still deemed as both the important objectives to our studies and good basis for the deep explo。ration．It is indicated that the spatial distribution of auriferous qz veins are closely attached to properties． OCCHITence and scale of fault structure of mineralization period，but not restricted by certain stratigraphic horizon of the Taihua Group．That is to say，the spatial distribution of auriferous qz veins are closely related to the structure． It is concluded that we should pay attention to the regularity in the amount， scale and mineralization of auriferous qz veins during
prospecting work，especially those big veins with steep occurrences turn ing to fiat or those with imposed mineralization by multistage tectonic activities．At the same time， qz veins mineralization enrichment at different elevation due to thedifferences in tectonic environment，physico—chemical conditions， and mineralization intensity at mineralization stages．These are all significant for either the surface or the deep prospecting for gold deposits at this region.

Key words: Xiaoqinling in Shaanxi, Auriferous qz vein, Occurrence, Enrichment regularities of mineralization

中图分类号:

P618．51

高军辉，黄建军. 陕西小秦岭含金石英脉的矿化富集规律[J]. J4, 2008, 16(5): 7-11.

GAO Junhui, HUANG Jianjun. The Enrichment Regularities of Mineralization in Auriferous Quartz Veins at Xiaoqinling， Shaanxi[J]. J4, 2008, 16(5): 7-11.

参考文献

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