This paper reported the result of eight rare-earth elements (REE) in 29 cultivated fluvo-aquic soil samples collected from Tianjin region determined by instrumental neutron activation analysis.Although the recent alluvial deposits on which these soils were derived as their parent materials were different in their origins,the patterns of REE rnntent and distribution of 29 soil samples were quite similar.In comparision with the three heavy REE (Tb,Yb,Lu),the five light REE (La,Ce,Nd,Sm,Eu) tended to be enriched and concentrated in the clay fraction(<0.005 mm) of the soil in the processes of weathering and soil formation.
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杨国治,王玉琦,陈冰如,屠树德,孙景信.潮土中稀土元素的分布特征[J].土壤学报,1984,21(2):211-216. Yang Guozhi, Wang Yuqi, Chen Bingru, Tu Shude, Sun Jingxin. CHARACTERISTICS OF DISTRIBUTION OF RAREEARTH ELEMENTS IN FLUVO-AQUIC SOILS[J]. Acta Pedologica Sinica,1984,21(2):211-216.