摘要
中元古界九岭群为赣西北地体内最重要的地质单元之一,是-Au-Ag-As组合的含金建造,所处的大地构造背景为ACM区;花岗岩化过程能提供Au有利的络合剂,晚期花岗岩化作用更具成矿意义;区域金矿化大体上可分为北部变质热液型单金矿化和南部岩浆热液叠加型Au、Ag为主的多金属矿化等二种类型,区域找矿应注意Au、Ag、As、Pb、Zn等元素的异常,围绕九岭群、晚期小岩体和断裂构造等核心问题来开展工作.
Middle Proterozoic Jiuling Group, one of the most important geologic units in the Nothwest Jiangxi Terrain, is a Au-bearing formation with Au-Ag-As association and its geotectonic setting belongs to ACM area. Granitization can supply Au with favour complexing agents and the later periodic granitization is much more significant to minezliraation. Regional Au mineralization includes two types, metamorphic fluid Au in northern area and magnmtic fluid Au, Ag etc polymetallic association in southern area. Regional exploration should center on the Jiuling Group, small granite bodies of later period and faulting structures, paying attention to the anomaly of Au, Ag, As, Pb, Zn etc trace elements.
出处
《地质找矿论丛》
CAS
CSCD
1992年第4期1-12,共12页
Contributions to Geology and Mineral Resources Research
基金
国家自然科学基金
