The petrology and chemistry of basaltic fragments from the Apollo 11 soil - I

摘要: A study of basaltic fragments from the Apollo 11 bulk sample using instrumental neutron activation analysis, petrographic microscope, and electron microprobe is presented. The include Group A, B2, B3 basalts, which two samples are vitrophyres with compositions similar to crystalline high-K rocks crystallized under different physical conditions represent a second cooling unit. B2 relate each other through ilmenite fractionation, olivine fractionation; it concluded that have an anomalously high La/K ratio may generated in same source region as D basalts.