The age model of core 69、294 is based on the δ18O and δ13C of planktonic foraminifera G. ruber combining with geochemistry model stratigraphy, supply a reliable dating control for the core 69, 294. Past sea surface temperatures in the northern and southern areas of the South China Sea (SCS) have been reconstructed using the planktonic foraminifera δ18O and Uk37 index since the Last Glacial Maximum. The results showed that UK37-SST was 24. 5~27. 4℃ (average 26. 3℃)in the post Glacial Period and 23. 8~25. 3℃ (average 24. 3℃) in the last glacial period for in the southern areas, and UK37-SST was 23. 3 -26. 9℃ (average 26. 6℃) in the post Glacial Period and 22. 2~23.8℃ (average 22.8℃) in the last glacial period for the northern areas. Results of study indicate that temperature change in northern South China Sea is wider than the temperature change in south and other core in same latitude, that reveals response to climate change in South China Sea is much more sensitive than open ocean, and proves the magnify effect of margin sea to the environmental signal of ice age gyration.
UK37 indexpaleotemperaturesPost Glacial Period/ Last Glacial MaximumSouth China Sea
NETL
NSTL
维普
万方数据
