Because of plagioclase fractionation, the magma became richer in mafic components and were then emplaced to form Fe-Ti-rich norites.是什么意思_Because of plagioclase fractionation, the magma became richer in mafic components and were then emplaced to form Fe-Ti-rich norites.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句