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| Titel |
Pleistocene calcareous nannofossil biostratigraphy and biochronology: preliminary results from the IODP Site U1385 (Exp 339), the Shackleton Site. |
| VerfasserIn |
José-Abel Flores, Barbara Balestra, Gary Acton, Carlos Alvarez-Zarikian, Patrick Grunert, Francisco Javier Hernández-Molina, David Hodell, Baohua Li, Carl Richter, Maria Fernanda Sánchez Goñi, Francisco Javier Sierro, Arun Singh, Dorrik Stow, Antje Voelker, Chuang Xuan |
| Konferenz |
EGU General Assembly 2014
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 16 (2014) |
| Datensatznummer |
250093829
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| Publikation (Nr.) |
 EGU/EGU2014-8933.pdf |
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| Zusammenfassung |
| Site U1385 was selected and drilled in the Portuguese margin, at a location close to the so-called Shackleton Site MD95-2042 (in honor of the late Sir Nicholas Shackleton, 37°48’N 10°10′W, 3146 m water depth), during IODP Expedition 339 (Mediterranean Outflow Water in the Gulf of Cadiz and coastal areas off West Iberia, North East Atlantic), to provide a marine reference section of the Pleistocene millennial- and submillennial-scale climate variability. Site U1385 was recovered using the triple APC technique, which obtains a continuous record covering the last 1.2 Ma. In this study we show results of the succession of standard and alternative calcareous nannofossil events. The quantitative study based on calcareous nannofossils shows well-preserved and abundant assemblages along the core. Most conventional calibrated Pleistocene events were recognized. Moreover, these quantitative investigations provide further data on the stratigraphic distribution of some species and groups, such as the large Emiliania huxleyi (>4 μm), the small and medium sized Gephyrocapsa, the Reticulofenestra cisnerosii, and other circular forms. A preliminary calibration with the paleomagnetic and astronomical (oxygen isotope) signal is also presented.
*IODP Expedition 339 Scientists: Bahr, A., Ducassou. E., Flood, R., Furota, S., Jimenez-Espejo, F., Kim, J. K., Krissek, L., Kuroda, J., Llave, E., Lofi, J., Lourens, L., Miller, M., Nanayama, F., Nishida, N., Roque, C., Sloss, C., Takashimizu, Y., Tzanova, A., Williams, T. |
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