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Exceptional Agulhas leakage prolonged interglacial warmth during MIS 11c in Europe ArchiMer
Koutsodendris, Andreas; Pross, Joerg; Zahn, Rainer.
The transport of warm and saline surface water from the Indo-Pacific Ocean into the South Atlantic (Agulhas leakage) influences the Atlantic Meridional Overturning Circulation (AMOC), which in turn exerts control on European climate. Paleoceanographic data document a remarkably strong Agulhas leakage at the end of marine isotope stage (MIS) 11c interglacial (similar to 400ka B.P.), which is one of the best orbital analogues for the Holocene. Here we assess the potential influence of this exceptional Agulhas leakage on North Atlantic climate based on a compilation of marine and terrestrial proxy records from the Iberian margin and continental Europe. We show that a similar to 5ka long warm period persisted across Europe beyond the MIS 11c climatic optimum....
Tipo: Text Palavras-chave: Agulhas leakage; Interhemispheric teleconnection; MIS 11c; Iberian margin; Central European climate.
Ano: 2014 URL: https://archimer.ifremer.fr/doc/00289/40056/39273.pdf
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Advancing Santorini’s tephrostratigraphy: new glass geochemical data and improved marine-terrestrial tephra correlations for the past ∼360 kyrs ArchiMer
Wulf, Sabine; Keller, Jörg; Satow, Christopher; Gertisser, Ralf; Kraml, Michael; Grant, Katharine M.; Appelt, Oona; Vakhrameeva, Polina; Koutsodendris, Andreas; Hardiman, Mark; Schulz, Hartmut; Pross, Jörg.
The island of Santorini in the Aegean Sea is one of the world’s most violent active volcanoes. Santorini has produced numerous highly explosive eruptions over at least the past ∼360 kyrs that are documented by the island’s unique proximal tephra record. However, the lack of precise eruption ages and comprehensive glass geochemical datasets for proximal tephras has long hindered the development of a detailed distal tephrostratigraphy for Santorini eruptions. In light of these requirements, this study develops a distal tephrostratigraphy for Santorini covering the past ∼360 kyrs, which represents a major step forward towards the establishment of a tephrostratigraphic framework for the Eastern Mediterranean region. We present new EPMA glass geochemical data...
Tipo: Text Palavras-chave: Santorini; EPMA glass chemistry; Proximal tephra deposits; Marine tephrostratigraphy; Land-sea correlations; Eastern Mediterranean region.
Ano: 2020 URL: https://archimer.ifremer.fr/doc/00588/70039/67968.pdf
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