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古元古代

古元古代

古元古代（Paleoproterozoic）：元古宙早期，大约为16亿年前到25亿年前。隐生代原生代酒神代雨海代始太古代古太古代中太 …

...）与他的同事研究了岩石记录后表示，大约19亿年前的古元古代（Palaeoproterozoic），发生了非常重要的大事件——一块 …

专业词汇：地质年代术语... ... Mesoproterozoic Era 中元古代(界) Palaeoproterozoic Era 古元古代(界) Archaean Eon 太古宙(宇…

...ian) 盖层级 (Calymmian) 固结纪 古元古代 (Paleoproterozoic Era) (Statherian) 造山纪 (Orosirian) 层侵纪 (Rhyacian) 宙 (Pha...

The boron deposits in eastern Liaoning Province occur in the Paleoproterozoic magnesian volcanic -sedimentary strata .

the second is sodium-rich amphibolites which was discovered in Xuehuagou Formation of upper Taihua Group (probably Early Proterozoic Era).

Chronological evidence for the existence of the Meso- to Paleoproterozoic basement in the Yunkai uplift area

Late Paleoproterozoic granitic magmatism and crustal evolution in the Tonghua region, northeast China

Study Advances of Neoarchaean-Paleoproterozoic Tectonic Evolution in the North China Craton