晚太古-早元古代_有道手机词典

1.早元古代的大气圈、水圈与晚太古代相似，仍为缺氧性质。
The early Proterozoic atmosphere and hydrosphere are similar to those of Archaeozoic in being still absent in oxygen.
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2.鲁西晚太古代的侵入岩属无铕异常型，早元古代的侵入岩为负铕异常型；
This type of graphite deposits were formend in the Late Archaean to Early Proterozoic.
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