成矿地质事件浅析

A preliminary study on the ore-forming geologic events

成矿地质事件作为地壳和地质历史演化中的稀少事件,在相对较短的地质时限内,于全球或一定的空间范围内,具有相同或不同性质的地质体(构造单元)或它们特定的一部分,成矿元素呈大面积聚集或高浓度聚集成矿。成矿地质事件具有3个基本特征:1 层次性,即按成矿事件波及范围,可分为全球性的、洲际性的、区域性的、地方性的等四个层次成矿事件;2 耦合性,不同层次的成矿事件与其对应相配的地质(构造、岩浆、变质等)事件之间存在着节律的耦合关系;3 专属性,不同动力起因的成矿事件有着各自的成矿专属性。

An ore-forming eologic gevent,as a rare event in the crust and geologic historical evolution with a relative short geologic-time unit,and the global or definite space,has the same or different geologic bodies(structural units) or their special parts. The metallogenic elements show a congregation with a large area or high gathering mineralization. The ore-forming geologic events have three basic characteristics: 1. Stratification:according to the ore-forming geologic events and their scope, they are divided into the global, intercontinental,regional and local geologic events ; 2. Coupling:metallogenetic events in different stratificatins in correspondence with geologic events(structure,magma,metamorphism etc.) have the rhythmical coupling;3. Specialization:the different origin metallogenetic events have themselves metallogenetic specialization.