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Extending the tephra and palaeoenvironmental record of the Central Mediterranean back to 430 ka: a new core from Fucino Basin, central Italy

Research output: Contribution to journalArticle

  • Biagio Giaccio
  • Niklas Leicher
  • Giorgio Mannella
  • Lorenzo Monaco
  • Eleonora Regattieri
  • Bernd Wagner
  • Giovanni Zanchetta
  • Mario Gaeta
  • Fabrizio Marra
  • Sébastien Nomade
  • Danilo M. Palladino
  • Alison Pereira
  • Stephanie Scheidt
  • Gianluca Sottili
  • Thomas Wonik
  • Christian Zeeden
  • Daniel Ariztegui
  • Gian Paolo Cavinato
  • Jonathan R. Dean
  • Fabio Florindo
  • Melanie J. Leng
  • Patrizia Macrì
  • Elizabeth Niespolo
  • Paul R. Renne
  • Christian Rolf
  • Laura Sadori
  • Camille Thomas
  • Polychronis C. Tzedakis
Here we present the first tephrostratigraphic, palaeomagnetic, and multiproxy data from a new ∼98 m-deep sediment core retrieved from the Fucino Basin, central Italy, spanning the last ∼430 kyr. Palaeoenvironmental proxy data (Ca-XRF, gamma ray and magnetic susceptibility) show a cyclical variability related to interglacial-glacial cycles since the Marine Isotope Stage (MIS) 12-MIS 11 transition. More than 130 tephra layers are visible to the naked eye, 11 of which were analysed (glass-WDS) and successfully correlated to known eruptions and/or other equivalent tephra. In addition to tephra already recognised in the previously investigated cores spanning the last 190 kyr, we identified for the first time tephra from the eruptions of: Tufo Giallo di Sacrofano, Sabatini (288.0 ± 2.0 ka); Villa Senni, Colli Albani (367.5 ± 1.6 ka); Pozzolane Nere and its precursor, Colli Albani (405.0 ± 2.0 ka, and 407.1 ± 4.2 ka, respectively) and Castel Broco, Vulsini (419–490 ka). The latter occurs at the bottom of the core and has been 40Ar/39Ar dated at 424.3 ± 3.2 ka, thus providing a robust chronological constrain for both the eruption itself and the base of the investigated succession. Direct 40Ar/39Ar dating and tephra geochemical fingerprinting provide a preliminary radioisotopic-based chronological framework for the MIS 11-MIS 7 interval, which represent a foundation for the forthcoming multiproxy studies and for investigating the remaining ∼110 tephra layers that are recorded within this interval. Such future developments will contribute towards an improved MIS 11-MIS 7 Mediterranean tephrostratigraphy, which is still poorly explored and exploited.
Original languageEnglish
Article number106003
JournalQuaternary Science Reviews
Volume225
Early online date25 Oct 2019
DOIs
Publication statusPublished - 1 Dec 2019

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  • Giaccio et al 2019-Postprint

    Accepted author manuscript (Post-print), 5.4 MB, PDF document

    Due to publisher’s copyright restrictions, this document is not freely available to download from this website until: 25/10/20

    Licence: CC BY-NC-ND

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