黑色岩系及相关矿产——以扬子地台为例  

Black Rock Series and Associated Minerals: An Example of the Yangtze Platform

作　　者：王聚杰[1,2] 曾普胜[1,2,3] 麻菁 代艳娟[1,3] 苟瑞涛 

机构地区：[1]国家地质实验测试中心,北京100037 [2]中国地质大学(北京),北京100083 [3]昆明理工大学,云南昆明650000

出　　处：《地质与勘探》2015年第4期677-689,共13页Geology and Exploration

基　　金：国家自然科学基金项目(41072073);国土资源部公益性行业科研专项(201211078);国土资源大调查项目(12120113002500)联合资助

摘　　要：黑色岩系是指含有机碳及硫化物较多的深灰-黑色的硅质岩、碳酸盐岩、泥质岩及其变质岩石的组合体系,属于一种还原性岩石。黑色岩系中含铜、镍、锰、铀、磷、重晶石、铂族元素、铅-锌-银矿、油气等矿产,尤以铜、镍、钼、钒、钛最为典型,称为"五元素矿床"。近几年来,国内外关于黑色岩系中的非金属金属矿床的研究越来越多,黑色岩系的矿产经济意义也日益引起人们的重视。本文以扬子地台为例,研究震旦系-寒武系黑色岩系及其相关的矿产,为相似层位(如中晚泥盆统、石炭系、上二叠统、白垩系等)提供借鉴。通过对比云南晋宁梅树村震旦-寒武系界线的层型剖面与峡东地区震旦系剖面可以发现,两条剖面富磷层位具有可对比性,陡山沱组是扬子东部重要的含矿(磷)层位;而渔户村组是扬子西部最重要的含矿(磷)层位;过渡地段的贵州北部两个层位均重要;说明从陡山沱期到渔户村期,形成的磷矿活动中心逐渐从扬子东部向扬子西部迁移。The black rock series refers to the combination system of dark gray-black siliceous rocks,carbonate rocks,argillaceous rocks and metamorphic rocks containing organic carbon and sulfide more,belongs to a kind of reduction rocks. This rock series contains Cu,Ni,Mn,U,P,barite,oil and gas and other minerals,most typically Cu,Ni,Mo,V,and Ti,known as the ＂ five-element deposit＂. In recent years,there have been increasing studies on non-metal and metal ore deposits in the black rock series,and its mineral economic significance also receives growing attention. This paper takes the Yangtze platform as an example to study the black rock series and its associated minerals,and provides reference for the areas with similar horizons（ such as the middle and late Devonian,Carboniferous,and early Permian）. By comparing the stratum-type section of Sinian-Cambrian boundary at Meishucun,Jinning,Yunnan and the Sinian section in the eastern Yangtze Gorges area,we found that the two sections of phosphorus-rich layers are comparable. The Doushantuo Formation is the important ore（ P） horizon in eastern Yangtze; while the Yuhucun formation is the most important ore-bearing horizon（ P） in western Yangtze. Northern Guizhou is a transitional zone,where both the important layers exist. It seems that from the Doushantuo stage to the Yuhucun stage,the formation of phosphorite activity center gradually tended to migrate from the east to the west in the Yangtze platform.

关 键 词：黑色岩系 矿产 含磷层位 热液活动中心 迁移 

分 类 号：P618.51[天文地球—矿床学] P611.13[天文地球—地质学]