中太古代_有道手机词典

mesoarchean

1.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.
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2.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.
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3.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.
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