Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/14126
DC Field | Value | Language |
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dc.date.accessioned | 2021-01-05T11:18:23Z | - |
dc.date.available | 2021-01-05T11:18:23Z | - |
dc.date.issued | 2020 | - |
dc.identifier.uri | http://hdl.handle.net/2122/14126 | - |
dc.description.abstract | Few palaeoclimate archives beyond the polar regions preserve continuous and datable palaeotemperature proxy time series over multiple glacial-interglacial cycles. This hampers efforts to develop a more coherent picture of global patterns of past temperatures. Here we show that Mg concentrations in a subaqueous speleothem from an Italian cave track regional sea-surface temperatures over the last 350,000 years. The Mg shows higher values during warm climate intervals and converse patterns during cold climate stages. In contrast to previous studies, this implicates temperature, not rainfall, as the principal driver of Mg variability. The depositional setting of the speleothem gives rise to Mg partition coefficients that are more temperature dependent than other calcites, enabling the effect of temperature change on Mg partitioning to greatly exceed the effects of changes in source-water Mg/Ca. Subaqueous speleothems from similar deep-cave environments should be capable of providing palaeotemperature information over multiple glacial-interglacial cycles. | en_US |
dc.language.iso | English | en_US |
dc.publisher.name | Nature P.G. | en_US |
dc.relation.ispartof | Nature Communications | en_US |
dc.relation.ispartofseries | /11 (2020) | en_US |
dc.subject | speleothem | en_US |
dc.subject | palaeotemperature | en_US |
dc.subject | magnesium | en_US |
dc.title | Magnesium in subaqueous speleothems as a potential palaeotemperature proxy | en_US |
dc.type | article | en |
dc.description.status | Published | en_US |
dc.type.QualityControl | Peer-reviewed | en_US |
dc.description.pagenumber | 5027 | en_US |
dc.subject.INGV | Magnesium in subaqueous speleothems as a potential palaeotemperature proxy | en_US |
dc.identifier.doi | 10.1038/s41467-020-18083-7 | en_US |
dc.description.obiettivoSpecifico | 5A. Ricerche polari e paleoclima | en_US |
dc.description.journalType | JCR Journal | en_US |
dc.contributor.author | Drysdale, Russell | - |
dc.contributor.author | Couchoud, Isabelle | - |
dc.contributor.author | Zanchetta, Giovanni | - |
dc.contributor.author | Isola, Ilaria | - |
dc.contributor.author | Regattieri, Eleonora | - |
dc.contributor.author | Hellstrom, John | - |
dc.contributor.author | Govin, Aline | - |
dc.contributor.author | Tzedakis, Polychronis | - |
dc.contributor.author | Ireland, Trevor | - |
dc.contributor.author | Corrick, Ellen | - |
dc.contributor.author | Greig, Alan | - |
dc.contributor.author | Wong, Henri | - |
dc.contributor.author | Piccini, Leonardo | - |
dc.contributor.author | Holden, Peter | - |
dc.contributor.author | Woodhead, Jon | - |
dc.contributor.department | School of Geography, The University of Melbourne | en_US |
dc.contributor.department | School of Geography, The University of Melbourne | en_US |
dc.contributor.department | Dipartimento di Scienze delle Terra and CIRSEC, University of Pis | en_US |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Pisa, Pisa, Italia | en_US |
item.openairetype | article | - |
item.cerifentitytype | Publications | - |
item.languageiso639-1 | en | - |
item.grantfulltext | open | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | Laboratoire EDYTEM, UMR CNRS | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Pisa, Pisa, Italia | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Pisa, Pisa, Italia | - |
crisitem.author.dept | School of Earth Sciences, University of Melbourne, Parkville, Victoria 3010 Australia | - |
crisitem.author.dept | School of Geography, The University of Melbourne | - |
crisitem.author.dept | Australian Nuclear Science and Technology Organisation | - |
crisitem.author.dept | Dipartimento di Scienze delle Terra, Università degli Studi di Firenze | - |
crisitem.author.orcid | 0000-0001-7867-031X | - |
crisitem.author.orcid | 0000-0002-7166-9575 | - |
crisitem.author.orcid | 0000-0002-7080-9599 | - |
crisitem.author.orcid | 0000-0002-3911-4676 | - |
crisitem.author.orcid | 0000-0001-8512-5571 | - |
crisitem.author.orcid | 0000-0001-6072-1166 | - |
crisitem.author.orcid | 0000-0001-7617-3889 | - |
crisitem.author.orcid | 0000-0003-3892-050X | - |
crisitem.author.orcid | 0000-0002-7614-0136 | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
Appears in Collections: | Article published / in press |
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File | Description | Size | Format | |
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2020_Drysdale_Mg laghetto_NC.pdf | 1.5 MB | Adobe PDF | View/Open |
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