formation of igneous rock
致矿侵入体的识别标志——以新疆阿尔夏提矽卡岩型铁铜矿床为例
igneous rocks (from wikimedia commons)
cieig化学笔记0620化学键的对比
地球上的岩石,可以分为三大类:火成岩(igneous rocks),变质岩
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