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3.2. UCC-normalized REEs distribution pattern
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Fig. 5.
Upper continental crust (UCC)-normalized rare earth TAK-700 R-form (REE) pattern in the total (leached + residual), leached, and residual fractions of river sediments and the river source rocks. The river sediments display remarkably different patterns in leached and/or residual fractions, and also in Korean and Chinese river sediments. REE data for source rocks are extracted from Xu et al. (2009). HH: Huanghe, CJ: Changjiang, KR: Korean rivers.
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4. Discussion
4.1. REE fractionation enrichments in river sediments and their implications
4.1.1. Enrichment of LREEs in residual fraction of Korean river sediments
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Fig. 6.
Pair diagrams of (a) the testes mean grain-size and (LREE/HREE)ucc ratio in leached and residual fractions of river and shelf sediments, and (b) the mean grain-size and (LREE/HREE)ucc and (MREE/HREE)ucc in the residual fraction.
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