Arid and humid phases in central Italy during the Late Pleistocene revealed by the Lake Trasimeno ostracod record
A multiproxy approach in a sediment core from Lake Trasimeno has been used to reconstruct the climate history of central Italy during the Late Pleistocene to Early Holocene period (ca. 47,000–9,000 cal yr B.P.). Ostracod assemblages and sedimentological data (lithology and carbonate content) have...
Published in: | Palaeogeography, Palaeoclimatology, Palaeoecology |
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Online Access: | http://hdl.handle.net/11590/330110 https://doi.org/10.1016/j.palaeo.2017.09.033 http://www.sciencedirect.com/science/journal/00310182/319 |
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ftunivroma3iris:oai:iris.uniroma3.it:11590/330110 2024-02-27T08:41:11+00:00 Arid and humid phases in central Italy during the Late Pleistocene revealed by the Lake Trasimeno ostracod record Marchegiano, Marta Francke, Alexander Gliozzi, Elsa Ariztegui, Daniel Marchegiano, Marta Francke, Alexander Gliozzi, Elsa Ariztegui, Daniel 2018 http://hdl.handle.net/11590/330110 https://doi.org/10.1016/j.palaeo.2017.09.033 http://www.sciencedirect.com/science/journal/00310182/319 eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000423637900004 volume:490 firstpage:55 lastpage:69 numberofpages:15 journal:PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY http://hdl.handle.net/11590/330110 doi:10.1016/j.palaeo.2017.09.033 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85035066958 http://www.sciencedirect.com/science/journal/00310182/319 Mediterranean area Multivariate analyse Paleoclimate Paleocology Paleoenvironment Oceanography Ecology Evolution Behavior and Systematic Earth-Surface Processe Paleontology info:eu-repo/semantics/article 2018 ftunivroma3iris https://doi.org/10.1016/j.palaeo.2017.09.033 2024-01-31T17:40:33Z A multiproxy approach in a sediment core from Lake Trasimeno has been used to reconstruct the climate history of central Italy during the Late Pleistocene to Early Holocene period (ca. 47,000–9,000 cal yr B.P.). Ostracod assemblages and sedimentological data (lithology and carbonate content) have been used to infer past hydrological changes in the area. Ostracods were analyzed throughout the core using diversity indexes and multivariate statistic analyses (Cluster and PCA). Three main associations linked to lake level and salinity variations were recognized: 1) the C. torosa association, indicating permanent lacustrine conditions with high lake levels and low salinities; 2) the S. aculeata association, linked to very shallow/temporary waters with higher salinity conditions; and 3) the S. aculeata-E. mareotica association pointing to temporary water conditions and the highest salinities. Furthermore, the presence of C. fuscata and L. blankenbergensis during wide parts of the Late Pleistocene indicates temperatures lower than present days. Alternations of these three ostracod associations compares well with the oxygen isotope curve from Greenland (NGRIP) and are thus interpreted as climatically driven. At the Holocene transition (Termination 1), the ostracod associations indicate a delay in the increasing warming and humidity with respect to the NGRIP temperature record. Article in Journal/Newspaper Greenland NGRIP Anagrafe della Ricerca d'Ateneo (Universitá degli studi Roma Tre) Greenland High Lake ENVELOPE(-110.849,-110.849,67.386,67.386) Palaeogeography, Palaeoclimatology, Palaeoecology 490 55 69 |
institution |
Open Polar |
collection |
Anagrafe della Ricerca d'Ateneo (Universitá degli studi Roma Tre) |
op_collection_id |
ftunivroma3iris |
language |
English |
topic |
Mediterranean area Multivariate analyse Paleoclimate Paleocology Paleoenvironment Oceanography Ecology Evolution Behavior and Systematic Earth-Surface Processe Paleontology |
spellingShingle |
Mediterranean area Multivariate analyse Paleoclimate Paleocology Paleoenvironment Oceanography Ecology Evolution Behavior and Systematic Earth-Surface Processe Paleontology Marchegiano, Marta Francke, Alexander Gliozzi, Elsa Ariztegui, Daniel Arid and humid phases in central Italy during the Late Pleistocene revealed by the Lake Trasimeno ostracod record |
topic_facet |
Mediterranean area Multivariate analyse Paleoclimate Paleocology Paleoenvironment Oceanography Ecology Evolution Behavior and Systematic Earth-Surface Processe Paleontology |
description |
A multiproxy approach in a sediment core from Lake Trasimeno has been used to reconstruct the climate history of central Italy during the Late Pleistocene to Early Holocene period (ca. 47,000–9,000 cal yr B.P.). Ostracod assemblages and sedimentological data (lithology and carbonate content) have been used to infer past hydrological changes in the area. Ostracods were analyzed throughout the core using diversity indexes and multivariate statistic analyses (Cluster and PCA). Three main associations linked to lake level and salinity variations were recognized: 1) the C. torosa association, indicating permanent lacustrine conditions with high lake levels and low salinities; 2) the S. aculeata association, linked to very shallow/temporary waters with higher salinity conditions; and 3) the S. aculeata-E. mareotica association pointing to temporary water conditions and the highest salinities. Furthermore, the presence of C. fuscata and L. blankenbergensis during wide parts of the Late Pleistocene indicates temperatures lower than present days. Alternations of these three ostracod associations compares well with the oxygen isotope curve from Greenland (NGRIP) and are thus interpreted as climatically driven. At the Holocene transition (Termination 1), the ostracod associations indicate a delay in the increasing warming and humidity with respect to the NGRIP temperature record. |
author2 |
Marchegiano, Marta Francke, Alexander Gliozzi, Elsa Ariztegui, Daniel |
format |
Article in Journal/Newspaper |
author |
Marchegiano, Marta Francke, Alexander Gliozzi, Elsa Ariztegui, Daniel |
author_facet |
Marchegiano, Marta Francke, Alexander Gliozzi, Elsa Ariztegui, Daniel |
author_sort |
Marchegiano, Marta |
title |
Arid and humid phases in central Italy during the Late Pleistocene revealed by the Lake Trasimeno ostracod record |
title_short |
Arid and humid phases in central Italy during the Late Pleistocene revealed by the Lake Trasimeno ostracod record |
title_full |
Arid and humid phases in central Italy during the Late Pleistocene revealed by the Lake Trasimeno ostracod record |
title_fullStr |
Arid and humid phases in central Italy during the Late Pleistocene revealed by the Lake Trasimeno ostracod record |
title_full_unstemmed |
Arid and humid phases in central Italy during the Late Pleistocene revealed by the Lake Trasimeno ostracod record |
title_sort |
arid and humid phases in central italy during the late pleistocene revealed by the lake trasimeno ostracod record |
publishDate |
2018 |
url |
http://hdl.handle.net/11590/330110 https://doi.org/10.1016/j.palaeo.2017.09.033 http://www.sciencedirect.com/science/journal/00310182/319 |
long_lat |
ENVELOPE(-110.849,-110.849,67.386,67.386) |
geographic |
Greenland High Lake |
geographic_facet |
Greenland High Lake |
genre |
Greenland NGRIP |
genre_facet |
Greenland NGRIP |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000423637900004 volume:490 firstpage:55 lastpage:69 numberofpages:15 journal:PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY http://hdl.handle.net/11590/330110 doi:10.1016/j.palaeo.2017.09.033 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85035066958 http://www.sciencedirect.com/science/journal/00310182/319 |
op_doi |
https://doi.org/10.1016/j.palaeo.2017.09.033 |
container_title |
Palaeogeography, Palaeoclimatology, Palaeoecology |
container_volume |
490 |
container_start_page |
55 |
op_container_end_page |
69 |
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