摘要
本文从成矿边缘效应观点论述了边缘成矿理论。提出大部分矿床在空间上是沿着不同类型和级别的大地构造单元或地质体的边缘部位〔包括板块边缘，地台、地槽褶皱系边缘，盆地边缘，岩体边缘，褶皱、断裂形态边缘和地层（岩石）交界面〕即异相交接带分布的；时间上是在不同构造运动期、地质时期或成矿作用时期的早期、晚期或过渡期形成的；而地球内、外部的各种异相差异因素所产生的成矿边缘效应是造成这种边缘成矿的主要原因。成矿边缘在时间和空间上是相互联系的，早期和晚期与边缘部位是相互对应的。成矿边缘级别划分为５级，分别控制了全球性成矿带、区域性矿带、矿田、矿床和矿体。
This article discusses the theory of marginal mineralization on the basis of min-eralization marginal effects. Views put forward are: 1)most of ore deposits are distributedspatially along the margins of geotectonic units of different types and different grades,oralong the margins of geological bodies (including margins of plates, platform-geosynclinefold systems, basins, intrusions,folded faulted formes, lithostratigraphic boundaries), i.e. coherent places of heteropic faces; 2)most of ore deposits were formed at the earlystage,later stage or transitional stage of different tectonic movements,geological or min-eralization periods; 3)main metallogenic causes are mineralization marginal effects result-ed from various discrepancies of heteropic facies of the inner and the outer of the Earth.Mineralization margins are related in space and time, the early and late stages are corre-sponding to positions of the margins.Mineralization margins can be divided into fivegrades which control global metallogenic belts, regional metallogenic belts,orefields, oredeposits and orebodies,respectively.
出处
《地学前缘》
EI
CAS
CSCD
1994年第4期176-183,共8页
Earth Science Frontiers
关键词
边缘成矿
成矿边缘效应
交接过渡
异相差异
marginal mineralization,mineralization marginal effects,coherent transition, discrepancies of heteropic facies
