ADVANCES IN RESEARCH ON GEOCHEMISTRY OF RARE EARTH ELEMENTS IN RIVERS
Received date: 1999-11-08
Revised date: 2000-02-29
Online published: 2000-10-01
Rare earth elements (REE) patterns of dissolved phase, suspended materials and sediments in rivers were established based on data referred from recent studies and our work. There are a number of factors or processes such as basin geology, weathering, solution chemistry and water-particle interaction controlled the geochemical behavior of REE in rivers. These factors and processes induced partition and fractionation of REE between suspended particles and solution. The shale-normalized REE patterns of suspended particles in rivers showed moderate light-REE (LREE) enrichment, and the solution of river waters showed significant heavy-REE (HREE) enrichment or convex curves that middle-REE (MREE) slight enrichment piled upon the HREE enrichment. The partition coefficient of REE between the suspended particles and solution (K≈10-6) was smaller comparing with most of other trace metals in rivers. The sediments in rivers showed a flat shale-normalized REE patterns.
WANG Zhong-liang, LIU Cong-qiang, XU Zhi-fang，HAN Gui-lin, ZHU Jian-ming, et al . ADVANCES IN RESEARCH ON GEOCHEMISTRY OF RARE EARTH ELEMENTS IN RIVERS[J]. Advances in Earth Science, 2000 , 15(5) : 553 -540 . DOI: 10.11867/j.issn.1001-8166.2000.05.0553
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