火山碎屑岩是介于溶岩和沈积岩之间的过渡类型岩石，岩类复杂。

Pyroclastic rocks are a kind of transitional and complex rocks between lavas and sedimentary rocks.

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火山碎屑岩是介于溶岩和沈积岩之间的过渡类型岩石，岩类复杂。

Pyroclastic rocks are a kind of transitional and complex rocks between lavas and sedimentary rocks.

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