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那些太阳系最古老的物质，都去了哪儿？
source link: https://tech.sina.com.cn/d/s/2020-04-17/doc-iirczymi6794010.shtml
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来源：中科院之声球粒陨石，太阳系早期的固态物质吸积而成的“沉积岩”，因含有大量的球形硅酸盐小球（即球粒）而得名。大部分球粒陨石都被吸积进入行星，被核幔分异和岩浆作用改造，最终形成太阳系的八大行星和无数个分异的小行星。少部分球粒陨石得以幸免，
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