摘要
基于成矿“时间维”造就“空间维”的活动论新思维 ,提出了金属成矿省等级体制成矿概念 ,即成矿构造背“景”、成矿构造聚敛“场”、金属成矿“相”和矿“床”4个成矿等级在 1个金属成矿省内的成矿作用 ,及其随着地质历史演化进程 ,通过在一定地质时期的一定地质事件 ,促发 4个不同等级的成矿组成以一定规律发生耦合。不耦合者不成矿 ,一般耦合仅成一般规模矿床 ,最佳耦合导致巨量金属堆积 ,形成特大型矿床。文章以华北板块北缘及其北侧金属成矿省为例 ,通过成矿等级体制的有序耦合、耦合程度及其巨量金属堆积机制的研究 ,发现巨量金属的堆积是在一定的地质历史时期内 ,由一定的地质事件激发常规成矿作用发生异常“引潮共振”
Based on the metallogenic mobilistic thought that time-dimension generates space-dimension, the authors put forward the theory of hierarchy systematic metallogeny of a metallogenetic province. It is considered that tectonic setting, metallotect convergence, metallogenic phases and ore deposits consist of the metallogenic hierarchy system of a metallogenic province and that the formation of ore deposits is based on their catenation conforming with some geological evolution regularities. Hierarchy systematic metallogeny is exemplified mainly by the metallogenic province of North China Platform and its northern side. The relationship between the catenation degree of the metallogenic hierarchy system and the accumulation of metals or super-accumulation of metals suggests that no catenation of the four classes results in no ore formation, general catenation leads to the formation of small to middle deposits, and best or optimum catenation forms giant ore deposits induced by super-accumulation of metals. It is considered that the super-accumulation of metals is induced by the explosion of exceptional ore-forming process in some epochs of geological history.
出处
《矿床地质》
CAS
CSCD
北大核心
2004年第2期131-141,共11页
Mineral Deposits
基金
国土资源部专项研究计划 ( 2 0 0 10 10 3 )资助
关键词
地质学
金属成矿省
等级体制成矿
巨量金属堆积
异常成矿作用
geology, metallogenetic province, hierarchy systematic metallogeny, super-accumulation of metals, exceptional ore-forming process
