摘要
Presented in this paper are the trace element abundances of 16 samples of Hannuoba ultramafic inclusion-bearing aldali basalts,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 and Rayleigh fractional crystallization processes,The geochemical characteristics of the mantle source from where alkali basalts were derived are described in terms of variations in trace element abundances of the alkali basalt suite.
Presented in this paper are the trace element abundances of 16 samples of Hannuoba ultramafic inclu- sion-bearing alkali basalts,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 where alkali basalts were derived are described in terms of variations in trace element abundances of the alkali basalt suite.
