本文对陈蔡群变质岩中的斜长用闪岩进行了地球化学研究。
In this paper, the amphibolites in Chencai group metamorphic rocks have been studied by means of geochemistry.
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。
It was shown that the amphibolite was transformed from oceanic tholeiitic basalts and the leptynite was converted from acidic sedimentary rocks.
东秦岭秦岭岩群是一套中深变质结晶岩系，主要由片麻岩、斜长角闪岩、变粒岩和大理岩组成。
The Qinling Group is lithologically composed of four closely related but different rock sequences, gneiss, amphibolite, metadolerite and marble.
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