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

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, Sabine Wulf, Christian Zeeden, Daniel Ariztegui, Gian Paolo Cavinato, Jonathan R. DeanFabio Florindo, Melanie J. Leng, Patrizia Macrì, Elizabeth Niespolo, Paul R. Renne, Christian Rolf, Laura Sadori, Camille Thomas, Polychronis C. Tzedakis

Resultado de la investigación: Contribución a una revistaArtículorevisión exhaustiva

9 Citas (Scopus)

Resumen

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.

Idioma originalInglés
Número de artículo106003
PublicaciónQuaternary Science Reviews
Volumen225
DOI
EstadoPublicada - 1 dic 2019
Publicado de forma externa

Áreas temáticas de ASJC Scopus

  • Cambio global y planetario
  • Ecología, evolución, comportamiento y sistemática
  • Arqueología
  • Arqueología
  • Geología

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