These methods have revealed some unexpectedly immense formations in the deepest parts of the mantle; the largest of these is a buoyant mass of hot rock directly below Africa's southern tip.
这些方法在地幔最深处揭示了一些意想不到的巨大构造;其中最大的一块是在非洲南端正下方的一块热岩。
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It is one of southern England's maritime counties. It reveals a beautiful story of the earth's formation over millions of years, through some of the amazing rock formations and fossils.