Earth Science Frontiers ›› 2007, Vol. 14 ›› Issue (6): 189-196.

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What happened on the upstream of Minjiang River in Sichuan Province 20 000 years ago

  

  • Online:2008-06-30 Published:2008-06-30

Abstract:

A huge natural paleo-dammed lake deposit named “Diexi paleo-dammed lake” in Diexi ancient county was discovered in 1999. It is situated above the basin of the upper Minjiang River in Sichuan Province, China. The thickness of this lacustrine deposit is variable, reaching up to 200 m at some locations. Carbon-14 chronology has shown that this lacustrine deposit was formed about 20 000 years ago. Subsequently, other smaller paleo-dammed lake deposits have been discovered downstream of the Diexi area above the ...

Key words:

Minjiang River, paleo-dammed lake, geological environment, geological disaster,