MSS和TM遥感图像在修水地区找金中的应用

本文通过对MSS和TM图像的分析与研究,结合其它地质资料,指出修水地区的金成矿主要受高湖-蕉溪岭断裂和幽居-船滩断裂控制,二者是郯-庐断裂带西侧一支在本区的散开部分。高湖-蕉溪岭断裂既控岩又控盆。本区金矿床、矿田的定位模式为控金断裂与北东东向断裂相交,发育与岩浆活动有关的环状构造,并有金源层分布的地段。与该定位模式相似的地段有7处。模式地段的构造条件提供有利的成矿环境,如存在其它矿源层(体),也可形成相应的金属矿产。在模式地段应用TM图像对含矿构造及蚀变进行研究,可有效地为找矿服务。

THE APPLICATION OF MSS AND TM IMAGES TO GOLD EXPLORATION IN XIUSHUI

Through the analysis and research of the MSS and TM images as well as other geo- logic materials, this paper illustrates that the gold mineralization in Xiushui is mainly controlled by Gaohu-Jiaoxiling fault and Youju-Chuantan fault, both of which are the dis- peising part of the western branch of Tan-Lu Fault Zone. Gaohu-Jiaoxiling fault con- trols both granite body and basin distribution. The emplacement model of gold deposit and gold field in the study area is the place where the gold-controlling fault and NEE- trending fault intersect, the magmatism-related circular structures are developed and the gold source rocks are present. There are seven sections similar to those metioned above. The structure conditions in those model sections provide favorable metallogenic environments. If there are other mineral source beds (bodies), it is possible for the occurrence of corres- ponding ore deposits. The study of ore-bearing structures and hydrothermal alterations in the model sections on TM images is an effectively instructive tool for the gold mineral ex-