本文探讨了冈瓦纳古陆的形成和裂解的问题。
The formation and splitting of Gondwana land is still open to discussion.
亿万年前，一条卑微的鱼在冈瓦纳古陆的湖泊和河流中游泳。
Hundreds of millions of years ago a humble fish swam in the lakes and rivers of the supercontinent Gondwana.
在泥盆纪期间，龙门山构造带北段位于上扬子古陆的西北边缘。
During the Devonian period, northward of Longmen Mountain structural belt is located in northwest border of Up Yangtzee Ancient Land.
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