山西吕梁群流纹岩是一个古元古代的弱碱性火山岩。

The rhyolites in the Upper Luliang Group of Shanxi Province of China are Palaeoproterozoic A-type volcanic rocks.

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山西吕梁群流纹岩是一个古元古代的弱碱性火山岩。

The rhyolites in the Upper Luliang Group of Shanxi Province of China are Palaeoproterozoic A-type volcanic rocks.

youdao