早古生代，是一个时间年代，距今5.7亿年～距今4.09亿年，包括古生代的寒武纪﹑奥陶纪和志留纪 3个纪。
其时代主要为震旦纪—早古生代至泥盆纪。
兴东群变质作用可能也与早古生代构造-热事件有关。
The metamorphism of the Xingdong Group may also have relation to the Early Caledonian tectonothermal events.
早古生代以来，加里东运动使本区全面上升，同时遭受剥蚀。
The area was wholly uplifted with caledonian orogeny in the early palaeozoic , and underwent thereafter denudation.
应用推荐