Sedimentary Record of Yellow River Delta Superlobe in 11~1099
- Received Date: 1900-01-01
- Rev Recd Date: 1900-01-01
- Publish Date: 2008-10-10
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Key words:
- Yellow River delta /
- delta superlobe /
- sedimentary sequence /
- sedimentation rate
Abstract: The Yellow River Delta superlobe in 111099 formed on a very shallow sea area. The thickness of the delta close to the coast line in 1855 is only 12 m. The delta front silt or interdistributary bay clayey silt accumulates on the prodelta. In the old delta deposits, the bioturbation structure can be observed, the mollusk shells are common, more foraminiferal tests and marine ostracod valves exist. They are different from those in North Jiangsu delta superlobe (11281855) and Modern Delta superlobe (since 1855). These indicate that the sedimentation rate in the old delta superlobe is lower than the other two younger delta superlobes and indirectly indicate the increasing erosion in the Loess Plateau.
Citation: | XUE Chun-ting. Sedimentary Record of Yellow River Delta Superlobe in 11~1099[J]. Acta Sedimentologica Sinica, 2008, 26(5): 804-812. |