Resumen de Correlación cuantitativa con foraminíferos planctónicos del tránsito Paleoceno-Eoceno en Alamedilla (Béticas), Zumaya (Pirineos) y Site 401 (Golfo de Vizcaya):: implicaciones paleoceanográficas.
Ignacio Arenillas Sierra, Eustoquio Molina Martínez, Alfonso Pardo Juez
Quantitative correlation with planktic foraminifera at Alamedilla (Betics), Zumaya (Pyrenees) and Site 401 (Bay of Biscay) allows us to infer paleoceanographical trends during Paleocene-Eocene transition in a subtropical to cool environment transect. Similar faunal events are observed in the three sections, which suggest also similar paleoclimatic changes at different latitudes in surface waters. The benthic foraminifera/ extinction event at the P/E boundary coincides with a change in the warm/cool planktic foraminifera species ratio that indicates a surface water warming, accompanied by an increase in the acarininid population. After this warming pulse> a short-term cooling can be inferred by the change in the warm/cool ratio. This is the first study that using planktic foraminifera points out this post-P/E short term cooling in the general warming trans-P/E trend
