摘要
华南地区经历了东安、雪峰、加里东、印支和燕山期的地壳运动。伴随地壳的多期活动形成多时代的金矿床,发生多期叠加及多因复成的成矿作用。该地区至少存在雪峰、加里东、印支、燕山和第三纪五个成矿期。就目前探明的金矿床储量来看,晚元古代和古生代为该区金矿化的高峰期,而燕山期金矿具有潜在的找矿远景。由于地壳构造热事件由西北向东南演化,金的成矿时代相应有逐渐变新的趋势。
The regions of South China have undergone polycyclic crustal move-ments, accompanying with gold deposits of multiple epoches. According tothe geological evidences and isotope geochronological data, five gold metal-logenic epoches can be recognized in South China: Xuefengian, Caledonian,Indosinian, Yenshanian and Tertiary. Among the five epoches, the Xuefen-gian and Palaeozoic are of the highest peaks of gold mineralization. Becausethe crustal evolution of the regions was characterized by the crust accretionfrom northwest toward southeast, the ages of gold tend to be younger cor-responding1y.
关键词
金矿
内生矿床
成矿时代
华南
gold deposit
endogenic ore deposit
metallogenic epoch
multiple-type ore deposit
South China
