作者:Yun Liu
摘要:A theoretical model and numerical simulation(i.e.,Zhu et al.2019)demonstrates that the Earth’s lower mantle was intrinsically stratified for helium(He)by thermal diffusion owing to adiabatic temperature gradient in the Earth.This finding helps to explain the two longstanding problems:the helium concentration paradox and the heathelium paradox.
發文機構:State Key Laboratory of Ore Deposit Geochemistry CAS Center for Excellence in Comparative Planetology
關鍵詞:DIFFUSIONELEMENTSstructure
分類號: TG1[金屬學及工藝—金屬學]