A millennial scale planktonic foraminifer record of the mid-Pleistocene climate transition from the northern South China Sea
- Zheng, Fan
- Li, Qianyu
- Li, Baohua
- Chen, Muhong
- Tu, Xia
- Tian, Jun
- Jian, Zhimin
DOIAbstract
A high resolution record (~1100 yr) of planktonic foraminifers from ODP Site 1144 in the northern South China Sea reveals rapid and strongly variable climatic changes during the mid-Pleistocene transition period. The abundance of warm water species decreased from an average of 60% in marine isotope stage (MIS) 29 to <40% at MIS 22, followed by a steady increase in cool water species toward younger intervals. Many deep dwelling, warm water species decreased to a minimum during MIS 22 and remained extremely rare or even became absent in younger glacial intervals, indicating stepwise sea surface cooling in the region. Estimated SSTs show large fluctuations mostly at glacial-interglacial transitions. A maximum winter temperature difference of 1...
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