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。
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。
The results of this study are significant in understanding the compositions, forming mechanisms and origins of pegmatites.
此成果对了解伟晶岩物质成分、形成机制及成因研究具重要意义。
The feasibility of producing ceramic floor tile with clay and pegmatites was studied, and the experimental patch formula and chemical composition were given.
研究了利用粘土和伟晶岩生产陶瓷地砖的可行性，给出了试验配方和化学组成。
I-type granites, aplites and pegmatites outcropping in Mesozoic metamorphic belt of the southeastern coast of Fujian Province contain commonly magmatic garnets and primary muscovites.
闽东南沿海晚中生代变质带内出露的I型花岗岩、细晶岩和伟晶岩中常包含岩浆成因的石榴子石和原生白云母。
I-type granites, aplites and pegmatites outcropping in Mesozoic metamorphic belt of the southeastern coast of Fujian Province contain commonly magmatic garnets and primary muscovites.
闽东南沿海晚中生代变质带内出露的I型花岗岩、细晶岩和伟晶岩中常包含岩浆成因的石榴子石和原生白云母。
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