中子活化分析在变质岩原岩类型判别中的应用

应用中子活化分析结合地球化学方法讨论了四川盐边冷水箐的斜长角闪岩和变粒岩的原岩。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。

Inferring nature of premetamorphic rocks by the neutron activation analysis

The neutron activation analysis was adopted to determine elements in amphibolites and leptynites in Lengshuiqing of Yanbian County, Sichuan Province and by combining with geochemical method, nature of the two metamorphic rocks was inferred. It was shown that the amphibolite was transformed from oceanic tholeiitic basalts and the leptynite was converted from acidic sedimentary rocks.