金属成矿省成矿年代学研究的新进展——以华北地台北缘为例  

NEW ADVANCE OF ORE FORMING CHRONOLOGY OF METALLOGENIC PROVINCE A CASE STUDY OF NORTH MARGIN OF NORTH CHINA PLATFORM

作　　者：裴荣富[1] 熊群尧[1] 梅燕雄[1] 

机构地区：[1]中国地质科学院矿床地质研究所

出　　处：《地学前缘》1999年第2期325-334,共10页Earth Science Frontiers

基　　金：地质矿产部基础研究项目

摘　　要：以华北地台北缘金属成矿省（区、带）地质历史演化为实例讨论近１０年来国内外成矿年代学研究的若干新进展，内容涉及成矿年代学研究的金属成矿省等级体制成矿的年代学背景，代表性地区的金属矿床成矿年代演化，金属成矿省成矿事件的年代鉴证，成矿年代省和成矿年代区的建立。文中重点提出，成矿年代学作为学科，不同于矿床成矿年代和同位素测年技术。它是在一定的成矿区域（金属成矿省）内应用矿床成矿年代研究区域的成矿地质历史演化，做出成矿热事件和建立成矿年代省的年代鉴证，提出先兆成矿（Ｔｐ）、初始成矿（Ｔｉ）、主期成矿（Ｔｔ）、滞后成矿（Ｔｈ）、终结成矿（Ｔｅ）的成矿流程和成矿跨度（Ｔｓ），为全球或一个地区的、在地球动力演化过程中出现的、可作为演化热事件特殊标记的矿床谱写其成矿年代演化历史，从而发展“时间维”造就“空间维”的“演化成矿学”，发挥“成矿演化是一切成矿因素函数”The main purpose of this paper is to discuss a certain number of new advance of studies in domestic and abroad on the ore forming chronology in the last 10 years, and making an example basing on an evolution of the metallogenic province of north margin of North China platform through geological history The contents of this paper involve the studied background of ore forming chronology on the hierarchy systematic metallogeny of a metallogenic province,the evolution of ore deposits ages in a representative districts,the age identification of metallogenic thermal events of a metallogenic province and the establishment of age province and age district The authors propose that the ore forming chronology serving as a scientific discipline is different from the age of ore deposits and the dating technique of isotope, while it is to study the regional metallogenic evolutional history using the age of ore deposits in a certain metallogenic province and making out an age identification of ore forming thermal events as well as the age province From which,one can write an ore forming evolutional history of ore deposit which may serve as a special criterion of crustal evolution due to the processes of geodynamic in a global or a region Based on the establishment of the ore forming circuit of metallogeny through timing prerequisite(Tp),timing initial(Ti),timing top(Tt),timing hysteresis(Th),timing ended(Te) and timing span(Ts),the “evolutionary metallogeny” causing by temporal dimension generated spatial dimension can be developed and given full play to the effect for mineral potential assessment from the function that metallogenic evolution is all of the ore forming factors

关 键 词：金属矿床 成矿省 成矿年代学 成矿等 

分 类 号：P618.205[天文地球—矿床学]