山东石墨矿地质特征和成矿区带划分  

Geological Characteristics,Metallogenic Series and Metallogenic Zone Division of Graphite Deposits in Shandong

作　　者：颜玲亚 高树学[1] 刘海泉[1] 孙即秀 周雯[1] YAN Ling-ya;GAO Shu-xue;LIU Hai-quan;SUN Ji-xiu;ZHOU Wen(Shandong Branch of China National Geological Exploration Center of Building Materials Industry,Jinan 250100,China)

机构地区：[1]中国建筑材料工业地质勘查中心山东总队,山东济南250100

出　　处：《中国非金属矿工业导刊》2020年第4期24-30,共7页China Non-Metallic Minerals industry

基　　金：中国地质调查局“中国矿产地质志·山东卷”(编号:DD20190379-6);中国地质调查局“东部地区脉石英叶蜡石等特种非金属矿产调查评价”(编号:DD20190817)。

摘　　要：通过分析山东省已有勘查及研究成果,阐述了山东石墨矿资源特征,系统总结了山东石墨矿地质背景、成矿规律和石墨矿床成矿模式,划分了石墨成矿区带。山东已发现晶质石墨矿33处,查明矿物资源储量位居全国第五,全国占比4.40%。成因类型为区域变质型,主要形成于古元古代,其次是新太古代;主要赋矿层位为古元古代荆山群陡崖组徐村段,其次是新太古代泰山岩群雁翎关组。石墨黑云斜长片麻岩、石墨透辉变粒岩、斜长角闪岩、大理岩组合是石墨矿床的重要找矿标志。共划分了6个Ⅴ级石墨成矿带,主要呈北北东向分布于胶西北地区的平度—莱西—莱阳—牟平—文登一带,构成了石墨矿床主要成矿潜力区。Based on the analysis of the existing exploration and research achievements in Shandong province,this paper expounds the characteristics of the graphite resources in Shandong,systematically summarizes the geological background,metallogenic regularity and metallogenic model of the graphite deposits in Shandong,and divides the graphite metallogenic belts.In Shandong,33 crystalline graphite deposits have been discovered,which the discovered mineral resources reserve ranks the fifth in China,accounting for 4.40%of the total.The genetic type is the regional metamorphic type,mainly formed in the Paleoproterozoic,followed by the Neoarchean,the main ore-bearing horizon is Xucun section of the Douya formation of the Jingshan group in Paleoproterozoic,followed by Yanlingguan formation of the Taishan group in Neoarchean.Graphite-black plagioclase gneiss,graphite-dioptric granulite,plagioclase amphibolite and marble are important prospecting indicators of graphite-bearing deposits.Six grade V graphite metallogenic belts are divided,it is mainly distributed from NNE in the Pingdu-Laixi-Laiyang-Muping-Wendeng area of the northwest of Jiaodong,which constitutes the main metallogenic potential area of graphite deposits.

关 键 词：山东 石墨矿 成矿规律 矿床模式 成矿区带 

分 类 号：P619.252[天文地球—矿床学]