鞍山地区中太古代铁架山花岗岩中存在多种类型的表壳岩包体。
There is a lot of supracrustal enclaves in the Mesoarchean Tiejiashan granite in the Anshan area, Liaoning Province.
如此低的硫酸盐浓度，表示太古代大气中的氧气极为稀薄。
Such low levels of sulfate indicate that the archean atmosphere was virtually devoid of oxygen.
鄂东北大别杂岩中的表壳岩系属于晚太古代层状变质岩系。
The supracrustal sequences in the dabie complex in northeastern hubei belongs to a late archean stratified metamorphic sequences.
继太古代胶东群形成之后的胶东事件，在胶东群中造成了第一期的南北向构造和同构造麻粒岩相高级区域变质。
The Jiaodong event, which took place after formation of the Archaean Jiaodong Group, caused the first phase of N-S structures and syntectonic granulite facies metamorphism.
北大河岩群的蚀源区存在中-新太古代的古老陆壳。
The data also imply that there are Meso- to Neoarchaean continental crusts in the source areas.
北大河岩群的蚀源区存在中-新太古代的古老陆壳。
The data also imply that there are Meso- to Neoarchaean continental crusts in the source areas.
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