Lithogenic sediment deposition of 7 sediment cores from the Pacific Southern Ocean
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| Autores principales: | , , , , , , , , , |
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| Formato: | Dataset Open Access |
| Lenguaje: | en |
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PANGAEA
2014
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| _version_ | 1867171366940180480 |
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| author | Lamy, Frank Gersonde, Rainer Winckler, Gisela Esper, Oliver Jaeschke, Andrea Kuhn, Gerhard Ullermann, Johannes Martínez-García, Alfredo Lambert, Fabrice Kilian, Rolf |
| author_facet | Lamy, Frank Gersonde, Rainer Winckler, Gisela Esper, Oliver Jaeschke, Andrea Kuhn, Gerhard Ullermann, Johannes Martínez-García, Alfredo Lambert, Fabrice Kilian, Rolf |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Dust deposition in the Southern Ocean constitutes a critical modulator of past global climate variability, but how it has varied temporally and geographically is underdetermined. Here, we present data sets of glacial-interglacial dust-supply cycles from the largest Southern Ocean sector, the polar South Pacific, indicating three times higher dust deposition during glacial periods than during interglacials for the past million years. Although the most likely dust source for the South Pacific is Australia and New Zealand, the glacial-interglacial pattern and timing of lithogenic sediment deposition is similar to dust records from Antarctica and the South Atlantic dominated by Patagonian sources. These similarities imply large-scale common climate forcings such as latitudinal shifts of the southern westerlies and regionally enhanced glaciogenic dust mobilization in New Zealand and Patagonia. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_826600 |
| institution | PANGAEA |
| language | en |
| publishDate | 2014 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Lithogenic sediment deposition of 7 sediment cores from the Pacific Southern Ocean Lamy, Frank Gersonde, Rainer Winckler, Gisela Esper, Oliver Jaeschke, Andrea Kuhn, Gerhard Ullermann, Johannes Martínez-García, Alfredo Lambert, Fabrice Kilian, Rolf AWI_Paleo; Paleoenvironmental Reconstructions from Marine Sediments @ AWI Dust deposition in the Southern Ocean constitutes a critical modulator of past global climate variability, but how it has varied temporally and geographically is underdetermined. Here, we present data sets of glacial-interglacial dust-supply cycles from the largest Southern Ocean sector, the polar South Pacific, indicating three times higher dust deposition during glacial periods than during interglacials for the past million years. Although the most likely dust source for the South Pacific is Australia and New Zealand, the glacial-interglacial pattern and timing of lithogenic sediment deposition is similar to dust records from Antarctica and the South Atlantic dominated by Patagonian sources. These similarities imply large-scale common climate forcings such as latitudinal shifts of the southern westerlies and regionally enhanced glaciogenic dust mobilization in New Zealand and Patagonia. |
| title | Lithogenic sediment deposition of 7 sediment cores from the Pacific Southern Ocean |
| topic | AWI_Paleo; Paleoenvironmental Reconstructions from Marine Sediments @ AWI |
| url | https://doi.org/10.1594/PANGAEA.826600 |