archaean era 中文意思是什麼
archaean era
解釋
太古代-
It was early in the archaean era, 3. 8 to 2. 5 billion years ago, that life first appeared on earth
它在及早在archaean時代, 3 . 8到2 . 5十億年前,生活第一次出現在地球上。 -
It suggests that gold accumulation occurred in the every main stage of geologic history of fujian from late - archaean era to quaternary period but the scale and the feature of the gold accumulation are different in different stage and yanshan metallogenic epoch is the most important period of mineralization of fujian gold deposits
提出福建省內自晚太古代至第四紀的各個地質歷史發展的主要階段均有金的富集作用,但不同階段所形成的金富集規模及特徵明顯有別,燕山期為福建省金礦最重要的成礦期。
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