英语语法分析

The rock mass consists of fresh sericite quartz phyllite or fresh leptynite.

岩体为新鲜绢云母石英千枚岩或新鲜变粒岩。

It was shown that the amphibolite was transformed from oceanic tholeiitic basalts and the leptynite was converted from acidic sedimentary rocks.

结果表明，该区的斜长角闪岩是由大洋拉斑玄武岩变质而成，变粒岩则是由酸性沉积岩变质而成。