摘要
成矿演化可以分成5个时期(Ma):(1)小岩石圈板块,褶皱作用期并发育绿岩带(3800~3000);(2)陆壳主块的形成(3000~2700);(3)初始超大陆,开始板块构造作用的影响(2700~1800);(4)原生陆壳的多重作用(1800~600);(5)深部地幔分异,以构造岩浆分异作用为主(600~0)。
The evolutionary metallogeny may be divided into 5 periods(Ma):(1) Finelithosphere plates. Epochs of folding and development of greenstone belts (3800~3000);(2)Formation of the main bulk of the continental crust(3000~2700);(3) First supercon-tinents. Beginning of the action of the plate tectonics mechanism(2700~1800);(4)Multi-ple processing of the primary continental crust(1800~600);(5) Deep mantle differentia-tion,domination of the processes of tectonomagmatic differentiation(600~0).
出处
《地学前缘》
EI
CAS
CSCD
1995年第1期29-36,共8页
Earth Science Frontiers
关键词
成矿演化
控矿构造
成矿省
地质成矿期
evolutionary metallogeny,ore-controlling structural paragenesis,oreprovinces, geological-metallogenical periods