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| He, Juan; Zhao, Meixun; Li, Li; Wang, Hui; Wang, Pinxian. |
| High-resolution molecular abundance records for several marine biomarkers during the last glacial and Holocene have been generated for core MD05-2904 (19 degrees 27.32'N, 116 degrees 15.15'E, 2066 in water depth) from the northern South China Sea. The U-37(K') SST record indicates a 4.4 degrees C cooling during the Last Glacial Maximum for this site, consistent with previous reconstructions. The contents Of C-37 alkenones, dinosterol, brassicasterol, and C-30 alkyl diols are used as productivity proxies for haptophytes, dinoflagellates, diatoms, and eustigmatophytes, respectively. These records reveal that both individual phytoplankton group and total productivity increased by several factors during the LGM compared with those for the Holocene, in response... |
| Tipo: Text |
Palavras-chave: Biomarkers; Paleo-productivity; Community structure; Sea surface temperature; South China Sea. |
| Ano: 2008 |
URL: https://archimer.ifremer.fr/doc/00207/31845/30258.pdf |
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| He, Juan; Zhao, Meixun; Li, Li; Wang, Pinxian; Ge, Huangmin. |
| This paper reports high-resolution biomarker records of the last 260 ka for core MD05- 2904 from the northern South China Sea (SCS). The sea surface temperature (SST) record using the U-37(k') index reveals a minimum of 21.5 degrees C (MIS 2) and a maximum of 28.3 degrees C (MIS 5.5), for a temperature difference of almost 7 degrees C, and provides the longest high-resolution U-37(k') SST record in northern SCS. The content of odd-number long chain n-alkanes and several n-alkanes indexes such as the CPI, ACL and the C-31/C-27 ratio, all reveal generally higher values during the glacials and lower values during the interglacials. Terrestrial input as indicated by n-alkane content was mostly controlled by sea-level changes: During the glacials, lower... |
| Tipo: Text |
Palavras-chave: Northern South China Sea; Sea surface temperature; Terrestrial input; Source region vegetation. |
| Ano: 2008 |
URL: https://archimer.ifremer.fr/doc/00207/31844/30259.pdf |
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