张北义哈德石墨矿床变质岩原岩恢复及古沉积环境浅析  

Protolith Recovery and Discussion on Paleosedimentary Environment of Yihade Graphite Metamorphic Rocks in Zhangbei

作　　者：王立考[1] 田贺[1] 李艳杰 李博文 王政[1] WANG Li-kao;TIAN He;LI Yan-jie;LI Bo-wen;WANG Zheng(Hebei Branch of China National Geological Exploration Center of Building Materials Industry,Baoding 071000,China)

机构地区：[1]中国建筑材料工业地质勘查中心河北总队,河北保定071051

出　　处：《中国非金属矿工业导刊》2021年第1期10-14,21,共6页China Non-Metallic Minerals industry

基　　金：中国地质调查局地质调查子项目“河北省张家口地区石墨矿资源调查评价”(编号:DD20160058-02);“河北省赤城县田家窑—马营晶质石墨矿资源调查评价”(编号:KD-2019-XZ-144)。

摘　　要：义哈德石墨矿地处华北陆块北缘石墨成矿带中段,冀北隆起石墨成矿带,张北石墨成矿区,具有良好的石墨矿找矿前景。红旗营子岩群太平庄组为义哈德石墨矿含矿层位,通过对含矿建造岩石的组合特征、地球化学特征、原岩性质研究,探讨该区的变质岩原岩及其形成环境,以期为今后对寻找有关石墨矿床提供指导。研究表明:片麻岩、变粒岩、浅粒岩其原岩主要为一套中基性火山岩、砂岩;大理岩其原岩为泥质岩、碳酸盐岩组合。The Yihade graphite deposit is located in the middle section of the graphite metallogenic belt on the northern margin of the North China block,the graphite metallogenic belt of the northern Hebei uplift,and the Zhangbei graphite metallogenic area.It has good prospects for graphite deposits.The Taipingzhuang formation of the Hongqiyingziyan group is the ore-bearing layer of the Yihade graphite deposit.Through the study of the assemblage,geochemical and protolithic characteristics of the ore-bearing building rocks,the metamorphic protoliths and their formation in this area will be discussed.In the future,we will provide guidance on finding relevant graphite deposits.Studies have shown that the original rocks of gneiss,metagranulite,and shallow granular rocks are mainly a set of intermediate-basic volcanic rocks and sandstones;the original rocks of marble are a combination of argillaceous rocks and carbonate rocks.

关 键 词：变质岩 原岩恢复 古沉积环境 义哈德石墨矿 

分 类 号：P588.31[天文地球—岩石学] P619.252[天文地球—地质学]