甘肃省矿床成矿系列研究

STUDY ON MINEROGENETIC SERIES OF DEPOSITS IN GANSU PROVINCE

通过对省内矿床的形成时代、成矿环境、地质成矿作用及矿床"自然组合"的研究认识,认为矿床是地质环境中的组成部分,成矿作用是形成地质环境的地质作用中的一个组成部分;在各个地质历史阶段的地质构造环境(单元)中的矿床与一定的地质成矿作用有关。利用在一定的地质历史时期或构造运动阶段,在一定的地质构造单元及构造部位,与一定的地质成矿作用有关,形成一组具有成因联系的矿床的自然组合这一成矿系列概念,基本确定了甘肃省内成矿系列序次,重点是对成矿系列进行了划分和鉴别,提出全省有11个成矿系列类型、39个成矿系列的新认识。论证了成矿系列的产出特征,确定出各系列的矿床式。

By studying the ore forming time, environments, geological mineralization and natural ore forming assemblage of deposits in Gansu Province, it is supposed that deposit is a part of geological environment, mineralization is the a part of geological process which is composed of geological environment; deposits in geological structural unit during various period of geological history has the relation to a certain geological mineralization. By means of the concept of minerogenetic series, that in the certain geological structural unit and location, a period of geological history or structural movements has relations to a geological mineralization which formed a series of deposits, the sequences of minerogenetic series in Gansu Province are decided primarily, minerogenetic series are classified and identified as 11 types of minerogenetic series and 39 series.