Science in China Series B: Chemistry

, Volume 44, Supplement 1, pp 40–46 | Cite as

Element geochemistry of Holocene sediment and paleoenvironmental change in the Changjiang Estuary

  • Shouye Yang
  • Congxian Li
  • Quanhong Zhao
  • Saito Yoshiki
  • Hori Kazuaki
Article

Abstract

Analyses of 41 elements reveal that Holocene sediments in the Changjiang Estuary bear regular elemental compositions in different sedimentary environments, and Holocene sediments came mainly from the Changjiang River based on compositions of REEs and most trace elements. Some heavy metals are more enriched in the surface sediment than in the deltaic sediments, reflecting human impact. Elemental compositions of the river channel sediment are related to the influence of proximal sediments. Sedimentary environments exert some influences on elemental compositions. Some chemical indices can be used to record chemical weathering undergone by the Changjiang sediment and environmental change.

Keywords

elemental geochemistry Holocene sediment Changjiang Estuary 

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Copyright information

© Science in China Press 2001

Authors and Affiliations

  • Shouye Yang
    • 1
  • Congxian Li
    • 1
  • Quanhong Zhao
    • 1
  • Saito Yoshiki
    • 2
  • Hori Kazuaki
    • 2
  1. 1.Laboratory of Marine GeologyTongji UniversityShanghaiChina
  2. 2.Marine Geology DepartmentGeological Survey of JapanTsukuba lbarakiJapan

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