从多系统年代学(Multi-System Geochronology)透视云开地块古生代—中生代的构造演化

Paleozoic-Mesozoic tectonic evolution of Yunkai massif:Insights from multi-system geochronology

云开地块位于华南板块南缘,经历了麻粒岩—高角闪岩相的高级变质作用,是华南地区为数不多的高级变质地体。研究表明,云开地块在古生代到中生代经历了复杂的构造演化过程,分别记录了早古生代末期、早中生代、晚中生代早期和晚中生代晚期的构造影响。这些构造事件在多系统年代学图上具有很好的表现,系统地揭示了云开地块的地质演化历史。

The Yunkai massif, experienced granulite to high-amphibolite high-grade metamorphism,is a key area in the southern part of the South China Block,and evidenced the tectonic evolution from Paleozoic to Mesozoic,including 4 events-late Early Paleozoic, Early Mesozoic, Early Late Mesozoic and Late Late Mesozoic. Coincided with tectonic events, the cooling path based on multi-system geochronology deciphers complex geological history of the Yunkai massif.