山东平度刘戈庄石墨矿地质特征及找矿标志

Geological Characteristics and Prospecting Criteria of Liugezhuang Graphite Deposit in Pingdu City of Shandong Province

摘要:

刘戈庄石墨矿为赋存于古元古代荆山群陡崖组徐村段含石墨变质岩系地层中的沉积变质型矿床，严格受地层层位控制，含矿岩性为石墨黑云斜长片麻岩、石墨透辉变粒岩、石墨透闪透灰岩，变质相达麻粒岩相，经历多期区域变质作用形成。该文采用最新成矿理论，对典型矿床的构造背景、物质来源进行了研究，确定了刘戈庄石墨矿矿床成矿模式，对利用该模式进行石墨矿成矿预具有一定的指导意义。

Abstract:

Systematic graphite deposit prospecting work in Shandong province began in 1957. It mainly concentrated in Nanshu area of Laixi city, and submitted a large number of exploration achievements. Nanshu graphite deposit is a sedimentary metamorphic deposit in grahpite-bearing metamorphic rocks in Xucun setion of Douya formation in Proterozoic Jingshan group. It is strictly controlled by stratigraphic strata, and experienced multi-phase regional metamorphisms. Shandong graphite deposits have the same origin with Nanshu graphite deposit. Thus, such graphite deposits in Shandong province are named as "Nanshu type" graphite deposits in this paper.