Science in China Series B: Chemistry

, Volume 44, Supplement 1, pp 87–91 | Cite as

Progradation of the Changjiang River delta since the mid-Holocene

  • Kazuaki Hori
  • Yoshiki Saito
  • Quanhong Zhao
  • Pinxian Wang
  • Congxian Li
Article

Abstract

Subaqueous deltaic deposits with approximately 30 radiocarbon ages show that the Changjiang River delta was strongly affected by tides and that the delta progradation rate after 2 kaBP was almost double the rate before 2 kaBP. This change in the progradation rate correlates well with the active extension of the subaerial delta plain shown by previous work. Widespread human activities, such as farming, deforestation, and dike construction, probably resulted in an increase in sediment discharge to the river-mouth area.

Keywords

Changjiang Yangtze sediment discharge delta progradation AMS radiocarbon dating human impact 

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Copyright information

© Science in China Press 2001

Authors and Affiliations

  • Kazuaki Hori
    • 1
  • Yoshiki Saito
    • 2
  • Quanhong Zhao
    • 3
  • Pinxian Wang
    • 3
  • Congxian Li
    • 3
  1. 1.Department of Earth and Planetary ScienceUniversity of TokyoTokyoJapan
  2. 2.Marine Geology DepartmentGeological Survey of JapanTsukubaJapan
  3. 3.Laboratory of Marine GeologyTongji UniversityShanghaiChina
  4. 4.Marine Geology DepartmentGeological Survey of JapanTsukubaJapan

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