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Continental crust rises higher than oceanic crust because it is less dense: It is rich in Si and poor in Mg. However, basalt, which is derived from magma, is denser and has a higher ratio of Mg to Si than the rock that makes up mature continental crust. C

机译：大陆壳的密度比海洋壳高，这是因为它的密度较小：硅含量高而镁含量低。但是，源自岩浆的玄武岩比构成成熟大陆壳的岩石更致密，且镁与硅的比率更高。 C

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《Proceedings of the National Academy of Sciences of the United States of America》 |2008年第13期|4963-4964|共2页
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收录信息美国《科学引文索引》(SCI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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入库时间 2022-08-18 00:43:25

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