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 (δ13C and δ18O) and trace elements (Mg, U, P, Y), with all proxies showing a coherent phase of reduced cave recharge betwee...
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fttriple:oai:gotriple.eu:oai:doaj.org/article:1d6e955a72d24821907fb5141581f46b 2023-05-15T17:32:24+02:00 The 4.2 ka event in the central Mediterranean: new data from a Corchia speleothem (Apuan Alps, central Italy) I. Isola G. Zanchetta R. N. Drysdale E. Regattieri M. Bini P. Bajo J. C. Hellstrom I. Baneschi P. Lionello J. Woodhead A. Greig 2019-01-01 https://doi.org/10.5194/cp-15-135-2019 https://www.clim-past.net/15/135/2019/cp-15-135-2019.pdf https://doaj.org/article/1d6e955a72d24821907fb5141581f46b en eng Copernicus Publications doi:10.5194/cp-15-135-2019 1814-9324 1814-9332 https://www.clim-past.net/15/135/2019/cp-15-135-2019.pdf https://doaj.org/article/1d6e955a72d24821907fb5141581f46b undefined Climate of the Past, Vol 15, Pp 135-151 (2019) geo envir Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2019 fttriple https://doi.org/10.5194/cp-15-135-2019 2023-01-22T17:51:33Z 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 (δ13C and δ18O) 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. Article in Journal/Newspaper North Atlantic North Atlantic oscillation Unknown Climate of the Past 15 1 135 151 |
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geo envir I. Isola G. Zanchetta R. N. Drysdale E. Regattieri M. Bini P. Bajo J. C. Hellstrom I. Baneschi P. Lionello J. Woodhead A. Greig The 4.2 ka event in the central Mediterranean: new data from a Corchia speleothem (Apuan Alps, central Italy) |
topic_facet |
geo envir |
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 (δ13C and δ18O) 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. |
format |
Article in Journal/Newspaper |
author |
I. Isola G. Zanchetta R. N. Drysdale E. Regattieri M. Bini P. Bajo J. C. Hellstrom I. Baneschi P. Lionello J. Woodhead A. Greig |
author_facet |
I. Isola G. Zanchetta R. N. Drysdale E. Regattieri M. Bini P. Bajo J. C. Hellstrom I. Baneschi P. Lionello J. Woodhead A. Greig |
author_sort |
I. Isola |
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) |
publisher |
Copernicus Publications |
publishDate |
2019 |
url |
https://doi.org/10.5194/cp-15-135-2019 https://www.clim-past.net/15/135/2019/cp-15-135-2019.pdf https://doaj.org/article/1d6e955a72d24821907fb5141581f46b |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_source |
Climate of the Past, Vol 15, Pp 135-151 (2019) |
op_relation |
doi:10.5194/cp-15-135-2019 1814-9324 1814-9332 https://www.clim-past.net/15/135/2019/cp-15-135-2019.pdf https://doaj.org/article/1d6e955a72d24821907fb5141581f46b |
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undefined |
op_doi |
https://doi.org/10.5194/cp-15-135-2019 |
container_title |
Climate of the Past |
container_volume |
15 |
container_issue |
1 |
container_start_page |
135 |
op_container_end_page |
151 |
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1766130503013892096 |