Determination of lead isotopic composition of a grain from the allende carbonaceous chondrite by LAMMA
作者： Zhifang Cai
DOI: 10.1007/BF03179292
关键词: Space resolution 、 Chondrite 、 Isotopic composition 、 Carbonaceous chondrite 、 Meteorite 、 Geology 、 Geochemistry 、 Mineralogy 、 Allende meteorite 、 Isochron
摘要: The attempt of this work is to use the LAMMA, a newly developed modern micro-beam analytical technique, determine lead isotopic composition some grains picked out from white aggregate in Allende (C3V) carbonaceous chondrite. experimental results show that Pb/Pb model age calculated on basis the206Pb/207Pb ratio 4.56 ±0.008 b. y., just agreement with values reported literature. LAMMA provides new and powerful tool arsenal dealing trace elements compositions, due its high sensitivity, rapid performence good space resolution.
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