摘要
秦岭岩群是一套由石英岩、片麻岩、大理岩、变质钙硅酸盐岩、斜长角闪岩组成的中深成变质的沉积—火山岩系,具有(类)孔兹岩系富铝、富碳、富碳酸盐岩,赋存丰富的石墨等非金属矿产资源的典型特征。从孔兹岩系展布与石墨矽线石等矿产资源分布的耦合关系,提出了石墨等非金属找矿方向及4个找矿靶区。
A set of typical khondalite series is determined in the Qinling rock group through contras- tive study on standard khondalites and characteristics of rock assemblage, lithological chemistry, zoning of metamorphic facies and protolith restoration. The Qinling rock group is a set of deep sedi- mentary metamorphic- volcano rock series composed of quartzite, gneiss, marble, metamorphic calc-silicate and amphibolites. They are featured by aluminum-carbon-carbonate-rich Khondalite se- ries, containing abundant graphite and non-metallic mineral resources. Based on relevant informa- tion and through recovery of khondalites metamorphic facies and original rock, the prospecting di- rection and 4 prospecting targets of graphite and other non-metals were proposed in this paper ac- cording to summary of the coupling relationship of mineral resources between the distributions of khondalites and sillimanite graphite.
出处
《陕西地质》
2016年第2期32-40,63,共10页
Geology of Shaanxi
关键词
秦岭岩群
孔兹岩系
地质特征
石墨资源
Qinling rock group
khondalite
geology
graphite resources
