四川旺苍黑泥湾矿山细鳞片石墨的矿物学特征  

Mineralogical characteristics of fine flake graphite ores in the Heiniwan deposit,Wangcang County,Sichuan Province,China

作　　者：巢力 彭同江[1,2,3] 孙红娟 张曦月[1,2] CHAO Li;PENG Tong-jang;SUN Hong-juan;ZHANG Xi-yue(Key Laboratory of Solid Waste Treatment and Resource Recovery of Ministry of Education,Southwest University of Science and Technology,Mianyang 621010,China;Institute of Mineral Materials and Application,Southwest University of Science and Technology,Mianyang 621010,China;Analysis and Testing Center,Southwest University of Science and Technology,Mianyang 621010,China)

机构地区：[1]西南科技大学固体废物处理与资源化教育部重点实验室,四川绵阳612010 [2]西南科技大学矿物材料及应用研究所,四川绵阳621010 [3]西南科技大学分析测试中心,四川绵阳621010

出　　处：《矿物学报》2023年第4期512-520,共9页Acta Mineralogica Sinica

基　　金：国家自然科学基金项目(编号:41772036)。

摘　　要：为查明四川旺苍黑泥湾矿床细鳞片石墨的矿物学特征,采用XRF、XRD、SEM、Raman等测试分析手段对矿石的化学成分、矿物组成、晶体结构等进行了研究。结果表明,黑泥湾矿山的石墨矿石为含有隐晶质石墨的细鳞片石墨矿石,所采样品固定碳含量为12.2%~47.04%;所采石墨矿石样品的物相组成为石墨、石英、白云母、绿泥石等。样品灰分的主要的化学组成为SiO2、Al_(2)O_(3)、K_(2)O、Fe_(2)O_(3)、MgO、V_(2)O_(5)、TiO_(2)、P2O_(5)、Na_(2)O等。各样品均为2H型石墨结构,同时不同程度地含有3R型多型,a=0.2454~0.2467nm,c=0.609~0.6726nm,晶胞体积V在0.0348~0.0355nm^(3)之间,石墨化度为0.7301~0.9495,3R多型含量为10.274~17.194%。氧化温度为600~700℃。In order to find out mineralogical characteristics of fine flake graphite ores in the Heiniwan graphite deposit,Sichuan Province,the chemical composition,mineral composition and crystal structure of the ore have been studied by using means of the XRF,XRD,SEM and Raman spectrometray.The results show that there is fine flake graphite ore containing cryptocrystalline graphite in the Heiniwan deposit.The graphite ore samples have fixed carbon contents varying from 12.2%to 47.04%.and minerals of quartz,chlorite,muscovite and sericite,etc.The main chemical compositions of sample ashes are SiO2,Al_(2)O_(3),K_(2)O,Fe_(2)0_(3),MgO,V20s,TiO_(2),P_(2)O_(5),Na_(2)0 and so on.All graphite samples mainly have 2H type structure graphite,with 3R type structure graphite in different degrees.They have lattice parameters of a values varying from 0.2454nm to 0.2467 nm,c values varying from 0.609 nm to 0.6726 nm,cell volumes(V)varying from 0.0348 nm^(3)to 0.0355 nm^(3),and graphitization degrees varying from 0.7301 to 0.9495.They have contents of 3R polytype graphite ranging from 10.274%to 17.194%.Their oxidation temperatures vary from 600℃ to 700℃.

关 键 词：黑泥湾 细鳞片石墨 矿物学特征 石墨化度 

分 类 号：P579[天文地球—矿物学] P574[天文地球—地质学]