窑坪地区石墨矿成因分析
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摘要
石墨的应用领域不断拓宽,已成为高科技领域中新型复合材料的重要原料,探寻石墨矿成因可为寻找石墨矿指明方向。充分利用陕西省洋县窑坪乡地区石墨矿床地质调查和矿产勘查工作取得的成果和资料,通过对有关地层、构造、岩浆岩、成矿时代、成矿构造、成矿作用等方面的研究,总结了该地区石墨的矿体特征及找矿标志,阐述了成矿有利地层为古元古界长角坝岩群湾牛坝岩组含石墨黑云斜长片麻岩和含石墨片岩。分析认为,矿体成因类型为沉积型区域变质矿床,地层标志、岩性标志、矿物标志是寻找石墨矿的最直观标志。
The application field of graphite has been continuously expanded,and it has become an important raw material for new composite materials in the high-tech field.Making full use of the achievements and data obtained in the geological survey and mineral exploration of graphite deposits in Yaoping region of Yangxian County,through the study of strata,structures,magmatic rocks,metallogenic epochs,metallogenic structures and metallogenic processes,the ore body characteristics and prospecting criteria of graphite in this area were summarized,and the favorable strata for mineralization were described as the graphite-bearing gneiss and schist of the Paleoproterozoic Changjiaoba Group Wanniuba Formation.The analysis shows that the genetic type of ore body is sedimentary regional metamorphic deposit,and most intuitive indicators for graphite ore prospecting are stratigraphic,lithological and mineral markers.
The application field of graphite has been continuously expanded,and it has become an important raw material for new composite materials in the high-tech field.Making full use of the achievements and data obtained in the geological survey and mineral exploration of graphite deposits in Yaoping region of Yangxian County,through the study of strata,structures,magmatic rocks,metallogenic epochs,metallogenic structures and metallogenic processes,the ore body characteristics and prospecting criteria of graphite in this area were summarized,and the favorable strata for mineralization were described as the graphite-bearing gneiss and schist of the Paleoproterozoic Changjiaoba Group Wanniuba Formation.The analysis shows that the genetic type of ore body is sedimentary regional metamorphic deposit,and most intuitive indicators for graphite ore prospecting are stratigraphic,lithological and mineral markers.
引文
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[4] 巨银娟,王邢颖,张泽中.西秦岭天水地区晚三叠世柴家庄二长花岗岩及其暗色包体地球化学——岩石成因及岩浆混合作用[J].地质与资源,2018,27(1):41- 47,59.
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