The 4.2 ka event in the central Mediterranean: new data from a Corchia speleothem (Apuan Alps, central Italy)

We present new data on the 4.2 ka event in the central Mediterranean from Corchia Cave (Tuscany, central Italy) stalagmite CC27. The stalagmite was analyzed for stable isotopes (delta13C and delta18O) and trace elements (Mg, U, P, Y), with all proxies showing a coherent phase of reduced cave recharg...

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Published in:Climate of the Past
Main Authors: Isola, Ilaria, Zanchetta, Giovanni, Drysdale, Russell, Regattieri, Eleonora, Bini, Monica, Bajo, Petra, Hellstrom, John C., Baneschi, Ilaria, Lionello, Piero, Woodhead, Jon, Greig, Alan
Other Authors: Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Pisa, Pisa, Italia, #PLACEHOLDER_PARENT_METADATA_VALUE#
Format: Article in Journal/Newspaper
Language:English
Published: 2019
Subjects:
Online Access:http://hdl.handle.net/2122/12144
https://doi.org/10.5194/cp-15-135-2019
id ftingv:oai:www.earth-prints.org:2122/12144
record_format openpolar
institution Open Polar
collection Earth-Prints (Istituto Nazionale di Geofisica e Vulcanologia)
op_collection_id ftingv
language English
topic speleothem
4.2 ka BP event
isotopes
trace elements
Paleoclima
spellingShingle speleothem
4.2 ka BP event
isotopes
trace elements
Paleoclima
Isola, Ilaria
Zanchetta, Giovanni
Drysdale, Russell
Regattieri, Eleonora
Bini, Monica
Bajo, Petra
Hellstrom, John C.
Baneschi, Ilaria
Lionello, Piero
Woodhead, Jon
Greig, Alan
The 4.2 ka event in the central Mediterranean: new data from a Corchia speleothem (Apuan Alps, central Italy)
topic_facet speleothem
4.2 ka BP event
isotopes
trace elements
Paleoclima
description We present new data on the 4.2 ka event in the central Mediterranean from Corchia Cave (Tuscany, central Italy) stalagmite CC27. The stalagmite was analyzed for stable isotopes (delta13C and delta18O) and trace elements (Mg, U, P, Y), with all proxies showing a coherent phase of reduced cave recharge between ca. 4.5 and 4.1 ka BP. Based on the current climatological data on cyclogenesis, the reduction in cave recharge is considered to be associated with the weakening of the cyclone center located in the Gulf of Genoa in response to reduced advection of air masses from the Atlantic during winter. These conditions, which closely resemble a positive North Atlantic Oscillation (NAO) type of configuration, are associated with cooler and wetter summers with reduced sea warming, which reduced the western Mediterranean evaporation during autumn–early winter, further reducing precipitation. ARCA project “Arctic: present climatic change and past extreme events” funded by the Italian Ministry of Education Universities and Research (MIUR); Australian Research Council Discovery Project DP160102969; Climate and alluvial event in Versilia: integration of Geoarcheological, Geomorphological, Geochemical data and numerical simulations Fondazione Cassa di Risparmio di Lucca; PRA-2018-41 Georisorse e Ambiente” funded by the University of Pisa Published 135-151 5A. Paleoclima e ricerche polari JCR Journal
author2 Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Pisa, Pisa, Italia
#PLACEHOLDER_PARENT_METADATA_VALUE#
format Article in Journal/Newspaper
author Isola, Ilaria
Zanchetta, Giovanni
Drysdale, Russell
Regattieri, Eleonora
Bini, Monica
Bajo, Petra
Hellstrom, John C.
Baneschi, Ilaria
Lionello, Piero
Woodhead, Jon
Greig, Alan
author_facet Isola, Ilaria
Zanchetta, Giovanni
Drysdale, Russell
Regattieri, Eleonora
Bini, Monica
Bajo, Petra
Hellstrom, John C.
Baneschi, Ilaria
Lionello, Piero
Woodhead, Jon
Greig, Alan
author_sort Isola, Ilaria
title The 4.2 ka event in the central Mediterranean: new data from a Corchia speleothem (Apuan Alps, central Italy)
title_short The 4.2 ka event in the central Mediterranean: new data from a Corchia speleothem (Apuan Alps, central Italy)
title_full The 4.2 ka event in the central Mediterranean: new data from a Corchia speleothem (Apuan Alps, central Italy)
title_fullStr The 4.2 ka event in the central Mediterranean: new data from a Corchia speleothem (Apuan Alps, central Italy)
title_full_unstemmed The 4.2 ka event in the central Mediterranean: new data from a Corchia speleothem (Apuan Alps, central Italy)
title_sort 4.2 ka event in the central mediterranean: new data from a corchia speleothem (apuan alps, central italy)
publishDate 2019
url http://hdl.handle.net/2122/12144
https://doi.org/10.5194/cp-15-135-2019
geographic Arctic
geographic_facet Arctic
genre Arctic
North Atlantic
North Atlantic oscillation
genre_facet Arctic
North Atlantic
North Atlantic oscillation
op_relation Climate of the Past
/15 (2019)
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http://hdl.handle.net/2122/12144
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spelling ftingv:oai:www.earth-prints.org:2122/12144 2023-05-15T15:08:58+02:00 The 4.2 ka event in the central Mediterranean: new data from a Corchia speleothem (Apuan Alps, central Italy) Isola, Ilaria Zanchetta, Giovanni Drysdale, Russell Regattieri, Eleonora Bini, Monica Bajo, Petra Hellstrom, John C. Baneschi, Ilaria Lionello, Piero Woodhead, Jon Greig, Alan Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Pisa, Pisa, Italia #PLACEHOLDER_PARENT_METADATA_VALUE# 2019 http://hdl.handle.net/2122/12144 https://doi.org/10.5194/cp-15-135-2019 en eng Climate of the Past /15 (2019) Saaroni, H., Ziv, B., Kishcha, P., Barkan, J., Mariotti, A., and Xoplaki, E.: Relations between climate variability in the Mediterranean region and the tropics: ENSO, South Asian and African monsoons, hurricanes and Saharan dust, in: Developments in Earth and Environmental Sciences, 4, 149–177, Elsevier, Amsterdam, 2006. Baldini, L. M., McDermott, F., Foley, A. M., and Baldini, J. 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Rev., 30, 409–417, 2011. http://hdl.handle.net/2122/12144 doi:10.5194/cp-15-135-2019 open speleothem 4.2 ka BP event isotopes trace elements Paleoclima article 2019 ftingv https://doi.org/10.5194/cp-15-135-2019 https://doi.org/10.1029/2007GL032027 2022-07-29T06:07:38Z We present new data on the 4.2 ka event in the central Mediterranean from Corchia Cave (Tuscany, central Italy) stalagmite CC27. The stalagmite was analyzed for stable isotopes (delta13C and delta18O) and trace elements (Mg, U, P, Y), with all proxies showing a coherent phase of reduced cave recharge between ca. 4.5 and 4.1 ka BP. Based on the current climatological data on cyclogenesis, the reduction in cave recharge is considered to be associated with the weakening of the cyclone center located in the Gulf of Genoa in response to reduced advection of air masses from the Atlantic during winter. These conditions, which closely resemble a positive North Atlantic Oscillation (NAO) type of configuration, are associated with cooler and wetter summers with reduced sea warming, which reduced the western Mediterranean evaporation during autumn–early winter, further reducing precipitation. ARCA project “Arctic: present climatic change and past extreme events” funded by the Italian Ministry of Education Universities and Research (MIUR); Australian Research Council Discovery Project DP160102969; Climate and alluvial event in Versilia: integration of Geoarcheological, Geomorphological, Geochemical data and numerical simulations Fondazione Cassa di Risparmio di Lucca; PRA-2018-41 Georisorse e Ambiente” funded by the University of Pisa Published 135-151 5A. Paleoclima e ricerche polari JCR Journal Article in Journal/Newspaper Arctic North Atlantic North Atlantic oscillation Earth-Prints (Istituto Nazionale di Geofisica e Vulcanologia) Arctic Climate of the Past 15 1 135 151