Universität zu Köln

Pereira, Alison, Monaco, Lorenzo, Marra, Fabrizio, Nomade, Sebastien, Gaeta, Mario, Leicher, Niklas ORCID: 0000-0002-3367-5982, Palladino, Danilo M., Sottili, Gianluca, Guillou, Herve, Scao, Vincent and Giaccio, Biagio ORCID: 0000-0002-7007-9127 (2020). Tephrochronology of the central Mediterranean MIS 11c interglacial (similar to 425-395 ka): New constraints from the Vico volcano and Tiber delta, central Italy. Quat. Sci. Rev., 243. OXFORD: PERGAMON-ELSEVIER SCIENCE LTD. ISSN 0277-3791

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Abstract

Through a systematic integrated approach, which combined lithostratigraphic, geochronological and geochemical analyses of tephra from near-source sections of the peri-Tyrrhenian volcanoes and mid to distal settings, here we provide an improved tephrochronological framework for the Marine Isotope Stage 11c interglacial (MIS 11c, similar to 425-395 ka) in the Central Mediterranean area. Specifically, we present the complete geochemical dataset and new high-precision Ar-40/Ar-39 ages of the previously poorly characterized earliest pyroclastic products of the Vico volcano (420-400 ka), including the Plinian eruptions of Vico alpha and Vico beta and the immediately post-dating lower magnitude explosive events. Furthermore, we also provide new geochronological and geochemical data for the distal tephra layers preserved in the aggradational succession of the Tiber delta (San Paolo Formation), Roman area, which records sea level rise relating to the MIS 12 (glacial) to MIS 11 (interglacial) transition. Five pyroclastic units were recognized in Vico volcanic area, four out of which, Vico alpha, Vico beta, Vico beta(top) (a minor eruption immediately following Vico beta and temporally very close to it) and Vico delta were directly dated at 414.8 +/- 2.2 ka, 406.5 +/- 2.4 ka, 406.4 +/- 2.0 ka and 399.7 +/- 3.2 ka respectively (2 sigma analytical uncertainties). These new data allow a critical reappraisal of the previously claimed identifications of Vico tephra from mid-distal to ultra-distal successions (i.e., Vico-Sabatini volcanic districts, Roman San Paolo Formation and Castel di Guido archaeological site, Sulmona Basin, Valdarno and Lake Ohrid), which were unavoidably biased by the poor and incomplete geochemical and geochronological reference datasets previously available. Such an improvement of the tephrochronological framework brings great benefits to any future investigations (e.g., paleoclimatology, archaeology, active tectonic, volcanology) in the dispersal areas of the studied eruptions at the key point in time that is MIS 11. (C) 2020 Elsevier Ltd. All rights reserved.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Pereira, Alison UNSPECIFIED UNSPECIFIED UNSPECIFIED Monaco, Lorenzo UNSPECIFIED UNSPECIFIED UNSPECIFIED Marra, Fabrizio UNSPECIFIED UNSPECIFIED UNSPECIFIED Nomade, Sebastien UNSPECIFIED UNSPECIFIED UNSPECIFIED Gaeta, Mario UNSPECIFIED UNSPECIFIED UNSPECIFIED Leicher, Niklas UNSPECIFIED orcid.org/0000-0002-3367-5982 UNSPECIFIED Palladino, Danilo M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Sottili, Gianluca UNSPECIFIED UNSPECIFIED UNSPECIFIED Guillou, Herve UNSPECIFIED UNSPECIFIED UNSPECIFIED Scao, Vincent UNSPECIFIED UNSPECIFIED UNSPECIFIED Giaccio, Biagio UNSPECIFIED orcid.org/0000-0002-7007-9127 UNSPECIFIED
URN:	urn:nbn:de:hbz:38-321746
DOI:	10.1016/j.quascirev.2020.106470
Journal or Publication Title:	Quat. Sci. Rev.
Volume:	243
Date:	2020
Publisher:	PERGAMON-ELSEVIER SCIENCE LTD
Place of Publication:	OXFORD
ISSN:	0277-3791
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language SEA-LEVEL; AR-40/AR-39 GEOCHRONOLOGY; LACUSTRINE SUCCESSION; EXPLOSIVE VOLCANISM; CLIMATE VARIABILITY; DECAY CONSTANTS; AGE CALIBRATION; MONTI SABATINI; RIVER VALLEY; RECORD Multiple languages Geography, Physical; Geosciences, Multidisciplinary Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/32174