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| Hatin, T.; Crosta, X.; Le Herisse, A.; Droz, L.; Marsset, Tania. |
| Changes in siliceous productivity in the eastern Equatorial Atlantic Ocean, off the Western African margin, over the last several glacial cycles have been either related to global-to-regional oceanographic changes (upwelling intensity) or climate changes (precipitation and river discharge). Based on diatom assemblages in core KZAI-02, located to the south of the mouth of the Congo River, integrated with a selection of geochemical proxies, we show that siliceous productivity in the southeastern Angola Basin responded to non-linear interactions between both oceanographic and climate changes over the last 190,000 years. High diatom accumulation rates were recorded in the middle part of MIS 6, in cold substage MIS 5d and in MIS 3-2. During these intervals,... |
| Tipo: Text |
Palavras-chave: Diatoms; Productivity; Late quaternary; Millennial time scale; Congo fan area. |
| Ano: 2017 |
URL: https://archimer.ifremer.fr/doc/00363/47402/47394.pdf |
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