摘要
采用仪器中子活化分析法和X射线荧光光谱法,系统地测定了汉诺坝含超镁铁质岩包体的碱性玄武岩微量元素含量。应用平衡部分熔融和瑞利分离结晶作用模式,讨论了该岩套的成岩过程及其地幔源区的地球化学特征。
Presented in this paper are the trace element abundances of 16 samples of ultramafic inclusion-bearing alkali basalts from Hannuoba, which were determined by instrumental neutron activation analysis and X-ray fluorescence spectrometry.The petrogenesis of the alkali basalt suite has been modeled by batch partial melting and Rayleigh fractional crystallization processes. The geochemical characteristics of the mantle source from which alkali basalts were derived are described in terms of variations in trace element abundances of the alkali basalt suite.
出处
《地球化学》
CAS
CSCD
北大核心
1989年第2期149-157,共9页
Geochimica
