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发表于 2016-1-5 00:23:42
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维基百科关于曼哈顿的地质简介
https://en.wikipedia.org/wiki/Manhattan#Geology
The bedrock underlying much of Manhattan is a mica schist known as Manhattan schist. It is a strong, competent metamorphic rock created when Pangaea formed. It is well suited for the foundations of tall buildings. In Central Park, outcrops of Manhattan Schist occur and Rat Rock is one rather large example.
中央公园的露天岩石
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