Isotope and Mg/Ca results from ODP Site 184-1145 ...
Magnesium/calcium (Mg/Ca) ratios of foraminiferal shells from a sediment core from the northern South China Sea, a semi-enclosed basin in the western tropical Pacific, document variations in sea-surface temperature (SST) during the past 145 k.y. Glacial SSTs were 4°C colder than interglacial SSTs. D...
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| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
PANGAEA
2005
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| Subjects: | |
| Online Access: | https://dx.doi.org/10.1594/pangaea.713701 https://doi.pangaea.de/10.1594/PANGAEA.713701 |
| Summary: | Magnesium/calcium (Mg/Ca) ratios of foraminiferal shells from a sediment core from the northern South China Sea, a semi-enclosed basin in the western tropical Pacific, document variations in sea-surface temperature (SST) during the past 145 k.y. Glacial SSTs were 4°C colder than interglacial SSTs. During the last deglaciation, most of the warming was accomplished in a single abrupt step after continental ice-sheet decay had already begun, but warming and ice-sheet demise were nearly synchronous during the penultimate deglaciation. Abrupt SST changes of the past 15 k.y. were apparently synchronous with events in East Asian monsoon rainfall, suggesting that variations in monsoon winds and their influence on surface circulation of the western Pacific exerted a strong control on northern South China Sea SSTs. We suggest that this link persisted for the previous 130 k.y., during which time orbital-scale 2-3°C SST changes and several small (=2°C) abrupt SST events occurred in the northern South China Sea. The ... : Supplement to: Oppo, Delia W; Sun, Youbin (2005): Amplitude and timing of sea-surface temperature change in the northern South China Sea: Dynamic link to the East Asian monsoon. Geology, 33(10), 785-788 ... |
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