ZHAO Qingfang, GONG Jianming, LI Shuanglin, HE Xingliang, FU Shaoying. GEOCHEMICAL CHARACTERISTICS OF RARE EARTH ELEMENTS OF SURFACE SEDIMENTS IN SHENHU AREA OF SOUTH CHINA SEA[J]. Marine Geology & Quaternary Geology, 2010, 30(1): 65-70. DOI: 10.3724/SP.J.1140.2010.01065
Citation: ZHAO Qingfang, GONG Jianming, LI Shuanglin, HE Xingliang, FU Shaoying. GEOCHEMICAL CHARACTERISTICS OF RARE EARTH ELEMENTS OF SURFACE SEDIMENTS IN SHENHU AREA OF SOUTH CHINA SEA[J]. Marine Geology & Quaternary Geology, 2010, 30(1): 65-70. DOI: 10.3724/SP.J.1140.2010.01065
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GEOCHEMICAL CHARACTERISTICS OF RARE EARTH ELEMENTS OF SURFACE SEDIMENTS IN SHENHU AREA OF SOUTH CHINA SEA

  • 1 Key Laboratory of Marine Petroleum Resources and Environmental Geology, Ministry of Land and Resources, Qingdao 266071, China;

  • 2 Qingdao Institute of Marine Geology, Qingdao 266071, China;

  • 3 Guangzhou Marine Geological Survey, Guangzhou 510760, China

More Information
  • Received Date: June 26, 2009
  • Revised Date: November 05, 2009
    Graphical Abstract
    • Abstract
  • The total content of rare earth element(∑REE) ranges from 66.8 to 218.3μg/g in surface sediments of Shenhu area of South China Sea. The average content of ∑REE is 128.1μg/g, relatively approaching the average content of ∑REE in China Loess; ∑REE is controlled by grain size and mainly concentrated in clayey silt. The change trend of standard curves of REE has no difference in various types of sediments, which suggests that the surface sediments of Shenhu come from the same material source and have characters of upper continental crust. Negative Ce anomaly is mainly affected by climate and environment changes in the source area, and has little to do with the sea. REE concentrations are negatively correlated with the contents of CaO,CaCO3 and Sr, but positively correlated with the contents of Al2O3,K2O and SiO2 in these sediments, which shows that REE has nothing to do with the biological role, probably existing in the crystal lattice of Alsilicate minerals and being adsorbed on clay.
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    • References (19)
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