张家口市康保县万隆店金矿区石墨矿床的发现及地质意义  

Discovery of graphite deposit in Wanlongdian gold mining area,Kangbao County,Zhangjiakou City and its geological significance

作　　者：杜登峰[1] 宋立方 李献龙 王利兵 DU Dengfeng;SONG Lifang;LI Xianlong;WANG Libing(The Ninth Geological Brigade,Hebei Bureau of Geology and Mineral Resources,Xingtai 054000,Hebei,China)

机构地区：[1]河北省地矿局第九地质大队

出　　处：《矿产与地质》2019年第4期635-641,共7页Mineral Resources and Geology

摘　　要：万隆店金矿开采时,在赋矿围岩中发现了石墨矿。在原有金矿勘探和开采地质资料的基础上,通过进一步工作,基本查明了矿区石墨矿体的形态、产状、特征、有用组分及变化规律。通过开展岩矿分析,探索了成矿原因,总结了找矿标志。该石墨矿体主要赋存于太古界红旗营子群第二岩组石墨(含石墨)变质岩中,并受地层层位控制,石墨矿体多呈似层状或顺层透镜状产出,矿体形态多与褶曲形态相吻合,石墨矿的成因类型为沉积变质型鳞片状晶质石墨矿。该矿床的发现为该地区综合找矿探索出一条新途径。Graphite orebody is discovered in the surrounding rock in Wanlongdian gold mining area.On the basis of the original geological data of gold exploration and mining,through further work,the shape,occurrence,characteristics,useful components and variation regularity of graphite orebody in the mining area are basically found out.Through rock and ore analysis,the metallogenic causes are explored and the prospecting factors are summarized.The graphite orebody is mainly hosted in the graphite(including graphite)metamorphic rock of the second rock formation of the Archean Hongqiyingzi Group,and it is controlled by the strata.The graphite orebody is mostly layered or in bedded lenticular shape,and the orebody shape is in good agreement with the bendfold morphology.The genetic type of graphite deposit belongs to sedimentary metaphorical flake crystal graphite type.The discovery of this deposit provides a new way for the comprehensive prospecting in this area.

关 键 词：石墨矿床 万隆店金矿区 太古界红旗营子群 综合找矿 张家口市 

分 类 号：P619.25[天文地球—矿床学]