摘要
本文论述了闽西南—粤东北地区大地构造演化及其特征、铜、（伴生）银矿床的成矿作用及与大地构造演化的关系。指出本区地壳经历了从太古代陆核阶段→中元古代—早元古代地槽裂谷阶段→晚古生代地台断拉谷阶段→中生代地洼陆相火山岩阶段的多阶段演化，形成了结晶基底、褶皱基底、地台盖层和地洼盖层的四层结构。铜、（伴生）银矿床赋在于三个构造层七个层泣中，与一定的沉积建造有关。成矿作用与各大地构造阶段发生的主要构造热事件有关。矿床具有明显的多因复成特点。
The geotectonic evolution the Cu,(asseeiated)Ag Metallogenesis as well as their relationship in Southwest Fujian and northeast Guangdong are expounded in this paper.This region has experienced a geotectonic evolution of at least four stages from Archeozoic continental nucleus,middle Proterozoic-early Paleozoic geosynclinal rift.late Paleozoic platform aulacogen to Mesozoic diwa,and formed four-layer Structure of crystalline basement,fold basement,platform cover and diwa cover.The Cu,(associated)Ag deposits and spots occurred in seven stratohorizons of the later three structural layers,relatingto certain formations.The metallogenesis is the corresponding result of structural and thermal evcnts occurringat each stage of geotectonic evolution.The Cu,(associated)Ag ore deposits show obvious polygeneticand compound characteristics.
出处
《大地构造与成矿学》
EI
CAS
CSCD
1994年第4期345-352,共8页
Geotectonica et Metallogenia
关键词
大地构造演化
成矿作用
铜矿床
银矿床
Southwest Fujian and Northeast Guangdong,Geotectonic Evolution,Metallogenesis,Cu,(Associated)Ag Ore deposits
