The effect of the Younger Dryas and of Heinrich Events on the climatic and environmental evolution of Central Italy [L'impronta del "Younger Dryas"e degli "Heinrich events "nell'evoluzione climatica e ambientale dell'ltalia centrale]
Palaeoclimatic studies conducted in Central Italy on various sedimentary environments, have as their objective the identification of the palaeoclimatic changes contemporaneous with Heinrich Events, H1 (14,300 y B.P.) and H2 (21,000 y B.P.), and YD (ca. 11,000 y B.P.). Morphological and stratigraphic...
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AIQUA - Associazione Italiana per lo Studio del Quaternario
1996
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ftenea:oai:iris.enea.it:20.500.12079/1342 2024-03-31T07:54:57+00:00 The effect of the Younger Dryas and of Heinrich Events on the climatic and environmental evolution of Central Italy [L'impronta del "Younger Dryas"e degli "Heinrich events "nell'evoluzione climatica e ambientale dell'ltalia centrale] Giraudi, C. Giraudi, C. 1996 https://hdl.handle.net/20.500.12079/1342 https://www.scopus.com/inward/record.uri?eid=2-s2.0-84981510464&partnerID=40&md5=acf0e3595038fa68b1d02725c1b68267 it ita AIQUA - Associazione Italiana per lo Studio del Quaternario volume:9 issue:2 numberofpages:533 - 540 journal:ALPINE AND MEDITERRANEAN QUATERNARY http://hdl.handle.net/20.500.12079/1342 info:eu-repo/semantics/altIdentifier/scopus/Scopus ID: 2-s2.0-84981510464 https://www.scopus.com/inward/record.uri?eid=2-s2.0-84981510464&partnerID=40&md5=acf0e3595038fa68b1d02725c1b68267 Central Italy Younger drya Heinrich event Upper pleistocene Palaeoclimate info:eu-repo/semantics/article 1996 ftenea https://doi.org/20.500.12079/1342 2024-03-06T00:14:12Z Palaeoclimatic studies conducted in Central Italy on various sedimentary environments, have as their objective the identification of the palaeoclimatic changes contemporaneous with Heinrich Events, H1 (14,300 y B.P.) and H2 (21,000 y B.P.), and YD (ca. 11,000 y B.P.). Morphological and stratigraphical studies conducted in different Central Apennine sites, have identified the presence of lacustrine, eolian, alluvial, and stratified slope deposits, phases of pedogenesis, as well as evidence of discountinuous permafrost. The deposits taken into consideration are those which yielded a radiocarbon date between ca. 21,000 and 10,000 years ago. Correlation between sites and the dating of particular horizons was made possible by the presence of three tephra layers interposed within the various sediments that form the stratigraphical series. In correspondence with Heinrich Events and Younger Dryas, lake level oscillations, phases of fluvial and eolian activity (which allow an evaluation of the hydrological balance), stratified slope deposits (linked to arid phases, and also, in the Late Pleistocene, to intense gelifraction), solifluc-tions (indicators of cold-wet climates), traces of discontinuous permafrost at high elevations (which indicate that the annual mean temperature, at the moment of their formation, was around -1 - -2 °C), have been identified. From the data obtained, it is possible to state that climatic cooling and drying in Central Italy are contemporaneous with both Heinrich Events and the Younger Dryas. It has also been assumed the approximate value of the annual mean temperature difference compared to present-day values and the time when occurred HI (-6,7 - -7,7 °C) and YD (-6 - -7 °C). Article in Journal/Newspaper permafrost ENEA-IRIS Open Archive (Agenzia nazionale per le nuove tecnologie, l'energia e lo sviluppo economico sostenibile) |
institution |
Open Polar |
collection |
ENEA-IRIS Open Archive (Agenzia nazionale per le nuove tecnologie, l'energia e lo sviluppo economico sostenibile) |
op_collection_id |
ftenea |
language |
Italian |
topic |
Central Italy Younger drya Heinrich event Upper pleistocene Palaeoclimate |
spellingShingle |
Central Italy Younger drya Heinrich event Upper pleistocene Palaeoclimate Giraudi, C. The effect of the Younger Dryas and of Heinrich Events on the climatic and environmental evolution of Central Italy [L'impronta del "Younger Dryas"e degli "Heinrich events "nell'evoluzione climatica e ambientale dell'ltalia centrale] |
topic_facet |
Central Italy Younger drya Heinrich event Upper pleistocene Palaeoclimate |
description |
Palaeoclimatic studies conducted in Central Italy on various sedimentary environments, have as their objective the identification of the palaeoclimatic changes contemporaneous with Heinrich Events, H1 (14,300 y B.P.) and H2 (21,000 y B.P.), and YD (ca. 11,000 y B.P.). Morphological and stratigraphical studies conducted in different Central Apennine sites, have identified the presence of lacustrine, eolian, alluvial, and stratified slope deposits, phases of pedogenesis, as well as evidence of discountinuous permafrost. The deposits taken into consideration are those which yielded a radiocarbon date between ca. 21,000 and 10,000 years ago. Correlation between sites and the dating of particular horizons was made possible by the presence of three tephra layers interposed within the various sediments that form the stratigraphical series. In correspondence with Heinrich Events and Younger Dryas, lake level oscillations, phases of fluvial and eolian activity (which allow an evaluation of the hydrological balance), stratified slope deposits (linked to arid phases, and also, in the Late Pleistocene, to intense gelifraction), solifluc-tions (indicators of cold-wet climates), traces of discontinuous permafrost at high elevations (which indicate that the annual mean temperature, at the moment of their formation, was around -1 - -2 °C), have been identified. From the data obtained, it is possible to state that climatic cooling and drying in Central Italy are contemporaneous with both Heinrich Events and the Younger Dryas. It has also been assumed the approximate value of the annual mean temperature difference compared to present-day values and the time when occurred HI (-6,7 - -7,7 °C) and YD (-6 - -7 °C). |
author2 |
Giraudi, C. |
format |
Article in Journal/Newspaper |
author |
Giraudi, C. |
author_facet |
Giraudi, C. |
author_sort |
Giraudi, C. |
title |
The effect of the Younger Dryas and of Heinrich Events on the climatic and environmental evolution of Central Italy [L'impronta del "Younger Dryas"e degli "Heinrich events "nell'evoluzione climatica e ambientale dell'ltalia centrale] |
title_short |
The effect of the Younger Dryas and of Heinrich Events on the climatic and environmental evolution of Central Italy [L'impronta del "Younger Dryas"e degli "Heinrich events "nell'evoluzione climatica e ambientale dell'ltalia centrale] |
title_full |
The effect of the Younger Dryas and of Heinrich Events on the climatic and environmental evolution of Central Italy [L'impronta del "Younger Dryas"e degli "Heinrich events "nell'evoluzione climatica e ambientale dell'ltalia centrale] |
title_fullStr |
The effect of the Younger Dryas and of Heinrich Events on the climatic and environmental evolution of Central Italy [L'impronta del "Younger Dryas"e degli "Heinrich events "nell'evoluzione climatica e ambientale dell'ltalia centrale] |
title_full_unstemmed |
The effect of the Younger Dryas and of Heinrich Events on the climatic and environmental evolution of Central Italy [L'impronta del "Younger Dryas"e degli "Heinrich events "nell'evoluzione climatica e ambientale dell'ltalia centrale] |
title_sort |
effect of the younger dryas and of heinrich events on the climatic and environmental evolution of central italy [l'impronta del "younger dryas"e degli "heinrich events "nell'evoluzione climatica e ambientale dell'ltalia centrale] |
publisher |
AIQUA - Associazione Italiana per lo Studio del Quaternario |
publishDate |
1996 |
url |
https://hdl.handle.net/20.500.12079/1342 https://www.scopus.com/inward/record.uri?eid=2-s2.0-84981510464&partnerID=40&md5=acf0e3595038fa68b1d02725c1b68267 |
genre |
permafrost |
genre_facet |
permafrost |
op_relation |
volume:9 issue:2 numberofpages:533 - 540 journal:ALPINE AND MEDITERRANEAN QUATERNARY http://hdl.handle.net/20.500.12079/1342 info:eu-repo/semantics/altIdentifier/scopus/Scopus ID: 2-s2.0-84981510464 https://www.scopus.com/inward/record.uri?eid=2-s2.0-84981510464&partnerID=40&md5=acf0e3595038fa68b1d02725c1b68267 |
op_doi |
https://doi.org/20.500.12079/1342 |
_version_ |
1795036287180210176 |