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Pegmatites seem to form during a late magmatic stage.
伟晶岩似乎是在较晚的岩浆阶段形成的。
youdao
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The deposits occur in the old shield which is rich in dark rocks and pegmatites.
它们产于富含暗色岩和伟晶岩的古老地盾区内。
youdao
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The deposits occur in the old shield which is rich in dark rocks and pegmatites.
它们产于富含暗色岩和伟晶岩的古老地盾区内。
youdao