摘要
简析了高碳黑色页岩型铂族元素矿床(PGED)的研究现状,并根据矿床的特征初步将该类矿床划分为中层状黑色页岩、薄层状黑色页岩和高碳构造岩型3类;并从形成环境、成因等方面对PGED形成进行了剖析,强调了源区供给、有机迁移和热液叠加作用的差异是导致形成不同类型黑色含碳页岩型铂族元素矿床的根源,指出了我国贵州—湖南高碳黑色页岩型铂族元素成矿性较差与层薄和叠加温度低有关。
A brief review on high carbon-bearing black shale-type platinum group element deposits are made in this paper. Based on its characteristics, this type deposit can be subdivided into three subtypes like middle-thick layered black shale-type, thin layered black shale-type, and high carbon-bearing tectonite-type. The paper also analyzed the tectonic setting and genesis of PGE deposits, and proposed that the different types of black carbon-bearing platinum group element deposits were resulted from different resource providing, different organic material transference and different hydrothermal alteration among individual types. It can also be inferred that the low temperature of thermal alteration results in the worse mineralization of black carbon-bearing shale-type PGE depsoits in Guizhou-Hunan of the Southern China.
出处
《地质与勘探》
CAS
CSCD
北大核心
2002年第6期17-21,共5页
Geology and Exploration
基金
中国科学院知识创新工程项目(KZCX1-07)
南京大学内生金属矿床成矿机制研究国家重点实验室
吉林大学青年教师基金的资助。
关键词
铂族元素矿床
页岩
富集
成矿作用
形成环境
热液叠加作用
high carbon-bearing black shale - tectonic shale, Platinum group elements, enrichment and mineralization
