Advances in Earth Science ›› 2000, Vol. 15 ›› Issue (5): 553-540. doi: 10.11867/j.issn.1001-8166.2000.05.0553

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ADVANCES IN RESEARCH ON GEOCHEMISTRY OF RARE EARTH ELEMENTS IN RIVERS

WANG Zhong-liang , LIU Cong-qiang , XU Zhi-fang ,HAN Gui-lin , ZHU Jian-ming , ZHANG Jin   

  1. ①State Key Laboratory of Environmental Geochemistry,Institute of Geochemistry,CAS,Guiyang550002,China;②Institute of Geology and Geophysics,CAS,Beijing100101,China;③Department of Environmental Biology and Chemistry,Faculty of Science,Toyama University,Gofuku3190,Toyama930-8555,Japan
  • Received:1999-11-08 Revised:2000-02-29 Online:2000-10-01 Published:2000-10-01

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.

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.

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