浅成岩，是侵入火成岩，位于地壳的中等或较浅深度(<2 km)，矿物具有中等结晶粒度（几颗中等结晶粒度就可？）。常为斑岩纹理。岩石学中（请注明是否只能在书中看到？），常见为辉绿岩(粗玄岩)。[1][2]
参见
参考文献
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