Age determination and age tie-points of sediment cores from the Timor Sea
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| Autores principales: | , , , , , , |
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| Formato: | Dataset Open Access |
| Lenguaje: | en |
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PANGAEA
2015
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| _version_ | 1867170467801989120 |
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| author | Kuhnt, Wolfgang Holbourn, Ann E Xu, Jian Opdyke, Bradley N De Deckker, Patrick Röhl, Ursula Mudelsee, Manfred |
| author_facet | Kuhnt, Wolfgang Holbourn, Ann E Xu, Jian Opdyke, Bradley N De Deckker, Patrick Röhl, Ursula Mudelsee, Manfred |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | The evolution of the Australian monsoon in relation to high-latitude temperature fluctuations over the last termination remains highly enigmatic. Here we integrate high-resolution riverine runoff and dust proxy data from X-ray fluorescence scanner measurements in four well-dated sediment cores, forming a NE-SW transect across the Timor Sea. Our records reveal that the development of the Australian monsoon closely followed the deglacial warming history of Antarctica. A minimum in riverine runoff documents dry conditions throughout the region during the Antarctic Cold Reversal (15-12.9 ka). Massive intensification of the monsoon coincided with Southern Hemisphere warming and intensified greenhouse forcing over Australia during the atmospheric CO2 rise at 12.9-10 ka. We relate the earlier onset of the monsoon in the Timor Strait (13.4 ka) to regional changes in landmass exposure during deglacial sea-level rise. A return to dryer conditions occurred between 8.1 and 7.3 ka following the early Holocene runoff maximum. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_841351 |
| institution | PANGAEA |
| language | en |
| publishDate | 2015 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Age determination and age tie-points of sediment cores from the Timor Sea Kuhnt, Wolfgang Holbourn, Ann E Xu, Jian Opdyke, Bradley N De Deckker, Patrick Röhl, Ursula Mudelsee, Manfred GIK/IfG; IMAGES; Institute for Geosciences, Christian Albrechts University, Kiel; International Marine Global Change Study The evolution of the Australian monsoon in relation to high-latitude temperature fluctuations over the last termination remains highly enigmatic. Here we integrate high-resolution riverine runoff and dust proxy data from X-ray fluorescence scanner measurements in four well-dated sediment cores, forming a NE-SW transect across the Timor Sea. Our records reveal that the development of the Australian monsoon closely followed the deglacial warming history of Antarctica. A minimum in riverine runoff documents dry conditions throughout the region during the Antarctic Cold Reversal (15-12.9 ka). Massive intensification of the monsoon coincided with Southern Hemisphere warming and intensified greenhouse forcing over Australia during the atmospheric CO2 rise at 12.9-10 ka. We relate the earlier onset of the monsoon in the Timor Strait (13.4 ka) to regional changes in landmass exposure during deglacial sea-level rise. A return to dryer conditions occurred between 8.1 and 7.3 ka following the early Holocene runoff maximum. |
| title | Age determination and age tie-points of sediment cores from the Timor Sea |
| topic | GIK/IfG; IMAGES; Institute for Geosciences, Christian Albrechts University, Kiel; International Marine Global Change Study |
| url | https://doi.org/10.1594/PANGAEA.841351 |