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A continuous stable isotope record from the penultimate glacial maximum to the Last Interglacial (159–121 ka) from Tana Che Urla Cave (Apuan Alps, central Italy)

Published online by Cambridge University Press:  20 January 2017

Eleonora Regattieri ,
Giovanni Zanchetta ,
Russell N. Drysdale ,
Ilaria Isola ,
John C. Hellstrom  and
Adriano Roncioni
Eleonora Regattieri*
Affiliation:
Dipartimento di Scienze della Terra, Via S. Maria 53 56126 Pisa, Italy Istituto di Geoscienze e Georisorse IGG-CNR, via Moruzzi 1, 56100 Pisa, Italy
Giovanni Zanchetta
Affiliation:
Dipartimento di Scienze della Terra, Via S. Maria 53 56126 Pisa, Italy Istituto di Geoscienze e Georisorse IGG-CNR, via Moruzzi 1, 56100 Pisa, Italy Istituto Nazionale di Geofisica e Vulcanologia INGV, Via della Faggiola 32, Pisa, Italy
Russell N. Drysdale
Affiliation:
Department of Resource Management and Geography, University of Melbourne, Victoria 3010, Australia
Ilaria Isola
Affiliation:
Istituto Nazionale di Geofisica e Vulcanologia INGV, Via della Faggiola 32, Pisa, Italy
John C. Hellstrom
Affiliation:
School of Earth Sciences, University of Melbourne, Victoria 3010 Australia
Adriano Roncioni
Affiliation:
Gruppo Speleologico Lucchese, via Don Minzoni, Lucca, Italy
*
*Corresponding author at: Dipartimento di Scienze della Terra, Via S. Maria 53 56126 Pisa, Italy. E-mail address:regattieri@dst.unipi.it (E. Regattieri).
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Abstract

Relatively few radiometrically dated records are available for the central Mediterranean spanning the marine oxygen isotope stage 6–5 (MIS 6–5) transition and the first part of the Last Interglacial. Two flowstone cores from Tana che Urla Cave (TCU, central Italy), constrained by 19 U/Th ages, preserve an interval of continuous speleothem deposition between ca. 159 and 121 ka. A multiproxy record (δ18O, δ13C, growth rate and petrographic changes) obtained from this flowstone preserves significant regional-scale hydrological changes through the glacial/interglacial transition and multi-centennial variability (interpreted as alternations between wetter and drier periods) within both glacial and interglacial stages. The glacial stage shows a wetter period between ca. 154 and 152 ka, while the early to middle Last Interglacial period shows several drying events at ca. 129, 126 and 122 ka, which can be placed in the wider context of climatic instability emerging from North Atlantic marine and NW European terrestrial records. The TCU record also provides important insights into the evolution of local environmental conditions (i.e. soil development) in response to regional and global-scale climate events.

Keywords

SpeleothemStable isotopesCentral ItalyPenultimate deglaciationLast Interglacial
Type
Articles
Information
Quaternary Research , Volume 82 , Issue 2 , September 2014 , pp. 450 - 461
Copyright
University of Washington

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