江西新余铁矿田铁矿成矿地质特征与成因分析

Metallogenic Characteristics and Analysis of Iron Ore Deposit in the Xinyu Iron Orefield

本文总结了新余铁矿田矿层和含铁岩系变化特征、矿层顶板、底板和含铁岩系标志层特征以及矿田东、中、西段构造特征,分析了铁矿的沉积成岩作用以及构造演化历史,解释了新余铁矿田的各种成矿地质特征,并运用系统分析方法和历史分析方法说明矿田成矿地质系统的内在规律,认为该矿床属于火山-沉积变质铁矿,其物质成分较稳定,体现出规律性的变形特征和演化规律。

This paper summarized the characteristics of the iron ore beds and the iron ore-bearing rock series,the top and floor of the beds,the marker beds of the iron ore-bearing rock series as well as the structures of the eastern,middle and western parts of the Xinyu iron ore field.The sedimentation,diagenesis and the tectonic evolution of the iron ore fields have been studied,and the various ore-forming geological features have been described.The inherent features of the ore-forming geological system in the ore field have been explained by the application of system analysis methods and methods of historical analysis.It is considered that the ore deposits as a volcanic-sedimentary meta-ore type presented clear regularly deformation and evolution with less-changed composition and bedding.