甘肃石英岩矿资源分布规律及成矿远景探讨  

The Distribution of Quartzite Resources in Gansu Province and Its Metallogenic Prospect

作　　者：王锡荣[1] 陈颃 WANG Xi-rong;CHEN Hang(Gansu Branch of China National Geological Exploration Center of Building Materials Industry,Tianshui 741000,China)

机构地区：[1]中国建筑材料工业地质勘查中心甘肃总队,甘肃天水741000

出　　处：《中国非金属矿工业导刊》2020年第2期16-20,61,共6页China Non-Metallic Minerals industry

基　　金：中国地质调查局地质调查项目“中国矿产地质志”项目(编号:DD20190379)资助。

摘　　要：甘肃省石英岩矿的分布较为分散,品位较稳定,资源储量较大,以往对省内石英岩矿的研究只在单个矿床特征、成因及分布特征等方面,并没有进行过全面系统的全省范围内成矿规律研究。本文以《中国矿产地质志·甘肃卷》石英岩矿研编为基础,通过对甘肃省内现有18处石英岩矿的地质特征、资源储量及矿石质量等的详细研究分析,总结其区域成矿因素和所处大地构造位置和成矿区带,归纳出甘肃省石英岩矿主要成矿期为长城纪和南华纪—寒武纪,空间上主要位于走廊南山岩浆弧、龙首山变质基底杂岩和龙首山、昌马—靖远IV级成矿亚带,在对2个对典型矿床特征介绍的基础上,总结成矿规律,预测出双红圈、将军埠2个成矿远景区,对今后的石英岩找矿具有指导意义。The distribution of quartzite in Gansu province is relatively scattered,the grade is relatively stable,and the resource reserves are large.In the past,the research on quartzite ore in Gansu province only focused on the characteristics of single deposit,genesis and distribution,and did not conduct a comprehensive and systematic study on the metallogenic law in the whole province.Based on the research and compilation of quartzite deposits in the"Gansu volume of China's mineral geology",through the detailed study and analysis of the geological characteristics,resource reserves and ore quality of the existing 18 quartzite deposits in Gansu province,this paper summarizes the regional metallogenic factors,the geotectonic location and the metallogenic belt,and concludes that the main metallogenic periods of quartzite deposits in Gansu province are the Changcheng period and the Nanhua-Cambrian period,spatially,it is mainly located in the corridor of Nanshan magmatic arc,Longshoushan metamorphic basement complex and IV grade metallogenic sub-belt of Longshoushan and Changma-Jingyuan.Based on the introduction of two typical deposit characteristics,the metallogenic law is summarized,and the two metallogenic prospect areas of Shuanghongquan and Jiangjunbu are predicted,which is guiding significance for the future exploration of quartzite.

关 键 词：石英岩 分布规律 矿床特征 成矿远景 甘肃省 

分 类 号：P619.233[天文地球—矿床学]