Provenance discrimination diagrams incorporating REE parameters for the Harbin loess and paleosols. Geochemistry of loess deposits in northeastern China: constraint on provenance and implication for disappearance of the large Songliao palaeolake
figureposted on 25.07.2017 by Yuanyun Xie, Fang Yuan, Tao Zhan, Chunguo Kang, Yunping Chi, Yongfa Ma
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Supplementary Fig. 4 Provenance discrimination diagrams incorporating REE parameters for the Harbin loess and paleosols. Note that the Harbin dust samples fall within or well close to the field of the Songnen Sandy Land and the Horqin Sandy Land but far outside the field of the Hulun Buir Sandy Land, which reveal that the Harbin aeolian loess sediments have a marked geochemical affinity with the Songnen Sandy Land and the Horqin Sandy Land. Subscript N represents chondrite-normalized values. Eu/Eu* refers to Eu anomaly value equal to EuN/(SmN×GdN)0.5. LREE=(La+Ce+Pr+Nd+Sm+Eu); HREE=(Gd+Tb+Dy+Ho+Er+Tm+Yb+Lu); LREE'=(La+Ce+Pr+Nd); HREE'=(Er+Tm+Yb+Lu); MREE=(Sm+Eu+Gd+Tb+Dy+Ho); MREE*=2×MREE/(LREE' + HREE') Chondrite values are after Taylor and McLennan (1985).