Rare-earth-element (REE) concentrations of hydrothermally altered basaltic ro...
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a Eu anomaly is calculated using Eu/Eu* = EuN / (SmN 2 + GdN 2) 1/2; the subscript N denotes normalized to chondrite (Anders and Grevesse, 1989).b Normalized to chondrite...
铕异常(Eu anomaly)采用公式 $ ext{Eu/Eu*} = ext{Eu}_N / ( ext{Sm}_N^2 + ext{Gd}_N^2)^{1/2}$ 进行计算,其中下标$N$代表经球粒陨石(chondrite)标准化(Anders与Grevesse,1989)。b. 经球粒陨石标准化……



