摘要
高家坳微细粒浸染型 (卡林型 )金矿床位于湖南白马山—龙山东西向构造带中段。本文根据区域地质背景和矿床地质特征分析了该矿床的成矿地质条件 ,认为区域上元古界板溪群和震旦系地层是矿床的主要矿源层 ,泥盆系半山组浊流沉积的以泥质粉砂岩为主的岩性有利于金的吸附富集 ,基底断裂是矿床主要导矿断裂 ,NW向基底隆起顶部有利于矿液集中 ,次级NW、NE、EW向断裂破碎带为金矿成矿提供了良好的就位空间。并总结了湘中微细粒浸染型金矿的找矿标志 。
Located at the middle part of Baimashan-Longshan W N tectonic belt,the metallogenic geological conditions of Gaojia'ao fine grain dissimunaced gold deposit were studied basod on the analyses of regional geologic back ground and characteristies.It thinks as shown in the study that the source bed is Banxi Group of early proterozoic era and sinian periods and the pelitie siltstone is the main lithology.The tribidity current deposit of Banshan Formation of Devonian System is advantageous for gold absorbing and enrichment.The foundation teclonics is the main ore leading fraeture of gold deposit.The NW orientation and the foundation dome top are advantageous for mineral bearing solution concentration .The secondary order NW,NE,EW orientation fracture zone support very good intrusive space for gold metallogenic and summarized indiclion of Xiangzhong fine grain dissiminated type gold and proposed prospect searching for the same type gold deposit.
出处
《黄金》
CAS
2002年第5期1-3,共3页
Gold
关键词
成矿地质条件
找矿方向
高家坳金矿床
湖南
metallogenic condition
prospect orientation
Gaojia'ao gold deposit
Hunan
