河南省石墨矿床地质特征、成矿区带划分及找矿预测  

Geological Characteristics,Metallogenic Zone Division and Prospecting Prediction of Graphite Deposit in Henan Province

作　　者：姬果 裴中朝[3] 王永辉 姬清海[3] 李宁 韩江伟[3] 巴燕[3] 桂新星 叶萍 JI Guo;PEI Zhongchao;WANG Yonghui;JI Qinghai;LI Ning;HAN Jiangwei;BA Yan;GUI Xinxing;YE Ping(Henan Geological Science Research Institute,Zhengzhou 450001,China;Henan Key Laboratory for Metal Mineral Ore-forming Geological Process and Utilization of Resource,Zhengzhou 450001,China;Henan Institute of Geological Survey,Zhengzhou 450001,China;Henan Aero-Geophysical Prospecting and Remote Sensing Center,Zhengzhou 450001,China)

机构地区：[1]河南省地质科学研究所,河南郑州450001 [2]河南省金属矿产成矿地质过程与资源利用重点实验室,河南郑州450001 [3]河南省地质调查院,河南郑州450001 [4]河南省航空物探遥感中心,河南郑州450001

出　　处：《金属矿山》2023年第4期158-167,共10页Metal Mine

基　　金：中国矿产地质志项目(编号:DD20160346,DD20190379)。

摘　　要：河南省石墨矿资源丰富,查明资源储量居全国第3位,是我国石墨工业最重要的原料来源地之一。因此,加强矿床地质特征研究、进行成矿区带划分、总结成矿规律和研究矿床成因,对于成矿预测、找矿潜力评价及促进矿产开发至关重要。在对河南省石墨矿勘查成果资料全面收集、整理和分析的基础上,重点对赋矿地层、矿床特征和成矿区带划分进行了研究。结果表明:(1)河南省石墨矿床类型单一,为区域变质型晶质石墨矿,成矿时代为新太古代和古元古代;(2)太华岩群水底沟岩组、秦岭岩群雁岭沟岩组和陡岭岩群大沟岩组,均具有孔兹岩系特征,石墨矿化最强,为主要赋矿地层,找矿潜力巨大;(3)银鱼沟群赤山沟组具有黑色岩系特征,石墨矿化相对较弱,为次要赋矿地层;(4)河南省石墨矿总体具有规模大、品位高、矿石易选等优点,具有重要的工业意义。在对全国成矿域(Ⅰ级)、成矿省(Ⅱ级)、成矿带(Ⅲ级)成矿区带划分的基础上,进一步将河南省石墨成矿区带划分为4个石墨成矿亚带(Ⅳ级)和8个石墨矿集区(Ⅴ级),石墨成矿亚带自北向南分布,石墨矿化自北向南由弱变强,与赋矿地层分布及其矿化规律完全一致。Henan Province is rich in graphite resources,and the reserves of identified resources rank the third in China.It is one of the most important raw material sources for the graphite industry in China.Therefore,it is very important for metallogenic prediction,prospecting potential evaluation and mineral development to strengthen the study of geological characteristics of deposits,divide metallogenic zones,summarize metallogenic regularities and study the genesis of deposits.On the basis of the comprehensive collection,sorting and research of the results of the graphite ore exploration in Henan Province,the focus is on the study of the ore-bearing strata,deposit characteristics and metallogenic zone division.The study results show that:①The graphite deposit in Henan Province is a single type,which is a regional metamorphic crystalline graphite deposit.The metallogenic age is Neoarchean and Paleoproterozoic.②Jiudigou Formation of Taihua Group,Yanlinggou Formation of Qinling Group and Dagou formation of Douling Group all have the characteristics of khondalite series.They are the main metallogenic strata with the strongest graphite mineralization and great prospecting potential.③The Chishangou Formation of the Yinyugou Group has the characteristics of black rock series,and the graphite mineralization is relatively weak,which is the secondary ore forma-tion.④The graphite ore in Henan Province has the advantages of large scale,high grade and easy ore selection,which has important industrial significance.Based on the classification of metallogenic regions(GradeⅠ),metallogenic provinces(GradeⅡ)and metallogenic belts(GradeⅢ)in China,the graphite metallogenic belt in Henan Province is further divided into 4 graphite metallogenic subbelts(GradeⅣ)and 8 graphite ore concentration areas(GradeⅤ).The graphite metallogenic subbelts are distributed from north to south,and the graphite mineralization changes from weak to strong from north to south.It is exactly consistent with the distribution and mineralization regu

关 键 词：石墨 矿床特征 赋矿地层 成矿区带 找矿预测 

分 类 号：TD11[矿业工程—矿山地质测量] P612[天文地球—矿床学]