Fidelity of δ18O as a proxy for sea surface temperature: Influence of variable coral growth rates on the coral Porites lutea from Hainan Island, China

The extremely high temporal resolution (nearly daily interval) measurement was conducted on the coral (Porites lutea) oxygen isotope compositions (δ18Oc) to examine the detailed relationship between δ18Oc and sea surface temperature (SST) and seawater oxygen isotope composition (δ18Ow) from Hainan I...

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Bibliographic Details
Published in:Geochemistry, geophysics, geosystems : G3 geophysics, geosystems : G3, 2005-09, Vol.6 (9), p.n/a
Main Authors: Shimamura, Michiyo, Oba, Tadamichi, Xu, Guoqiang, Lu, Bingquan, Wang, Luejiang, Murayama, Masafumi, Toyoda, Kazuhiro, Winter, Amos
Format: Article
Language:English
Subjects:
coral skeleton
growth rate
oxygen isotope
SST and SSS
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Summary:The extremely high temporal resolution (nearly daily interval) measurement was conducted on the coral (Porites lutea) oxygen isotope compositions (δ18Oc) to examine the detailed relationship between δ18Oc and sea surface temperature (SST) and seawater oxygen isotope composition (δ18Ow) from Hainan Island, China. Although SST and sea surface salinity (SSS) or δ18Ow varied in a wide range at the studied site, the dynamic range of δ18Oc recorded in coral was much smaller than expected from SST and SSS (δ18Ow) changes. The extremely high (>30°C) and low (
ISSN:1525-2027
1525-2027
DOI:10.1029/2005GC000966