Testing coral paleothermometers (B/Ca, Mg/Ca, Sr/Ca, U/Ca and delta O-18) under impacts of large riverine runoff
文献类型：期刊论文
| 作者 | Chen Tianran; Yu Kefu; Zhao Jianxin; Yan Hongqiang; Song Yinxian; Feng Yuexing; Chen Tegu |
| 刊名 | ACTA OCEANOLOGICA SINICA
 |
| 出版日期 | 2015 |
| 卷号 | 34期号:8页码:20-26 |
| 关键词 | Porites coral SST proxies coral paleothermometers riverine runoff Zhujiang River (Pearl River) Estuary northern South China Sea |
| 通讯作者 | chentianran@scsio.ac.cn |
| 中文摘要 | Sea surface temperature (SST) proxies including B/Ca, Mg/Ca, Sr/Ca, U/Ca and delta O-18 were analyzed in the skeleton of a Porites coral collected from the Zhujiang River (Pearl River) Estuary (ZRE). These geochemical proxies are influenced by river runoff and this area of the northern South China Sea is strongly affected by seasonal freshwater floods. We assessed the robustness of each SST proxy through comparison with the local instrumental SST. Coral Sr/Ca shows the highest correlation with SST variations (r (2)=0.59), suggesting Sr/Ca is the most robust SST proxy. In contrast, coral delta O-18 (r (2)=0.46), B/Ca (r (2)=0.43) and U/Ca (r (2)=0.41) ratios were only moderately correlated with SST variations, suggesting that they are disturbed by some other factors in addition to SST. The poor correlation (r (2)=0.27) between SST and Mg/Ca indicates that Mg/Ca in coral skeletons is not a simple function of SST variations. This may ultimately limit the use of Mg/Ca as a coral paleothermometer. |
| 学科主题 | Oceanography |
| 源URL | [http://ir.scsio.ac.cn/handle/344004/14939]  |
| 专题 | 南海海洋研究所_热带海洋环境国家重点实验室(LTO) |
| 推荐引用方式 GB/T 7714 | Chen Tianran,Yu Kefu,Zhao Jianxin,et al. Testing coral paleothermometers (B/Ca, Mg/Ca, Sr/Ca, U/Ca and delta O-18) under impacts of large riverine runoff[J]. ACTA OCEANOLOGICA SINICA,2015,34(8):20-26. |
| APA | Chen Tianran.,Yu Kefu.,Zhao Jianxin.,Yan Hongqiang.,Song Yinxian.,...&Chen Tegu.(2015).Testing coral paleothermometers (B/Ca, Mg/Ca, Sr/Ca, U/Ca and delta O-18) under impacts of large riverine runoff.ACTA OCEANOLOGICA SINICA,34(8),20-26. |
| MLA | Chen Tianran,et al."Testing coral paleothermometers (B/Ca, Mg/Ca, Sr/Ca, U/Ca and delta O-18) under impacts of large riverine runoff".ACTA OCEANOLOGICA SINICA 34.8(2015):20-26. |
入库方式： OAI收割
来源：南海海洋研究所
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