At deeper levels, the volcanic deposits were intruded by molten magma, which slowly crystallised to form granite.
在地壳深处, 熔化的岩浆侵入原先形成的火山岩中, 慢慢结晶成为花岗岩.
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Igneous rock is rock formed by solidification from a molten state; especially from molten magma.
火成岩是从熔融状态(特别是通过熔化岩浆)凝固而成的 石头.
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