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神人啊,我还觉得是文章错了,应该是the less land ice there was…………,因为水蒸发,18/16 ratio高,说明不是Ice age!看来概念混了,continental ice sheets grow和land ice
The higher the ratioofoxygen18tooxygen16in a sedimentaryspecimen, the more landicethere was when the sediment was laid down.
沉积物标本中氧18对氧16的比例越高,沉积物形成时的陆地冰就越多。 |
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