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| Titel |
Sequence of eruptive events in the Vesuvio area recorded in shallow-water Ionian Sea sediments |
| VerfasserIn |
C. Taricco, S. Alessio, G. Vivaldo |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1023-5809
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| Digitales Dokument |
URL |
| Erschienen |
In: Nonlinear Processes in Geophysics ; 15, no. 1 ; Nr. 15, no. 1 (2008-01-28), S.25-32 |
| Datensatznummer |
250012551
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| Publikation (Nr.) |
 copernicus.org/npg-15-25-2008.pdf |
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| Zusammenfassung |
| The dating of the cores we drilled from the Gallipoli terrace in the
Gulf of Taranto (Ionian Sea), previously obtained by tephroanalysis,
is checked by applying a method to objectively recognize volcanic
events. This automatic statistical procedure allows identifying
pulse-like features in a series and evaluating quantitatively the
confidence level at which the significant peaks are detected. We
applied it to the 2000-years-long pyroxenes series of the GT89-3
core, on which the dating is based. The method confirms the dating
previously performed by detecting at a high confidence level the
peaks originally used and indicates a few possible undocumented
eruptions. Moreover, a spectral analysis, focussed on the long-term
variability of the pyroxenes series and performed by several
advanced methods, reveals that the volcanic pulses are superimposed
to a millennial trend and a 400 years oscillation. |
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