推测涠洲岛的火山活动始于晚第三纪，更新世南湾火山喷发形成涠洲岛的现代地貌。
We can speculate that the volcanic activity began with late Tertiary and the modern landform in Weizhou Island was formed by eruption of the Nanwan volcano in Pleistocene.
推测涠洲岛的火山活动始于晚第三纪，更新世南湾火山喷发形成涠洲岛的现代地貌。
We can speculate that the volcanic activity began with late Tertiary and the modern landform in Weizhou Island was formed by eruption of the Nanwan volcano in Pleistocene.
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