First marine cryptotephra in Antarctica found in sediments of the western Ross Sea correlates with englacial tephras and climate records
We report the discovery of an important new cryptotephra within marine sediments close to Cape Hallett (northern Victoria Land), in the western Ross Sea, Antarctica. The cryptotephra is fully characterized for its texture, mineralogy and major- and trace-element data obtained on single glass shards....
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ftuniperugiairis:oai:research.unipg.it:11391/1452357 2024-02-11T09:56:03+01:00 First marine cryptotephra in Antarctica found in sediments of the western Ross Sea correlates with englacial tephras and climate records Di Roberto, Alessio Colizza, Ester Del Carlo, Paola Petrelli, Maurizio Finocchiaro, Furio Kuhn, Gerhard Di Roberto, Alessio Colizza, Ester Del Carlo, Paola Petrelli, Maurizio Finocchiaro, Furio Kuhn, Gerhard 2019 ELETTRONICO https://hdl.handle.net/11391/1452357 https://doi.org/10.1038/s41598-019-47188-3 eng eng info:eu-repo/semantics/altIdentifier/pmid/31337844 info:eu-repo/semantics/altIdentifier/wos/WOS:000476718900015 volume:9 issue:1 firstpage:10628 journal:SCIENTIFIC REPORTS https://hdl.handle.net/11391/1452357 doi:10.1038/s41598-019-47188-3 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85069648384 Discovery of a new cryptotephra Cape Hallett (northern Victoria Land) Mount Rittmann volcano info:eu-repo/semantics/article 2019 ftuniperugiairis https://doi.org/10.1038/s41598-019-47188-3 2024-01-17T17:46:12Z We report the discovery of an important new cryptotephra within marine sediments close to Cape Hallett (northern Victoria Land), in the western Ross Sea, Antarctica. The cryptotephra is fully characterized for its texture, mineralogy and major- and trace-element data obtained on single glass shards. On the basis of geochemical composition, the cryptotephra is unequivocally correlated with the proximal deposits of an explosive eruption of the poorly known Mount Rittmann volcano, situated in northern Victoria Land. The cryptotephra is also correlated with a widespread tephra layer, which was erupted in 1254 C.E. and is present in numerous ice-cores and blue ice fields across East and West Antarctica. The characteristics of the tephra indicate that it was produced by a prolonged, moderate energy, mostly hydromagmatic eruption. This is the first time that a cryptotephra has been identified in marine sediments of the Ross Sea and in ice cores. It provides an important new and widespread stratigraphical datum with which the continental cryosphere and marine sedimentological records in Antarctica can be correlated. Moreover, from a purely volcanological point of view, the discovery further confirms the occurrence of a long-lasting, significant explosive eruption from Mount Rittmann in historical times that produced abundant widely dispersed fine ash. The study also highlights the inadequacy of current hazard assessments for poorly known volcanoes such as Mount Rittmann, located at high southern latitudes. Article in Journal/Newspaper Antarc* Antarctica Ross Sea Victoria Land West Antarctica IRIS Università degli Studi di Perugia Ross Sea West Antarctica Victoria Land Hallett ENVELOPE(170.217,170.217,-72.317,-72.317) Cape Hallett ENVELOPE(170.217,170.217,-72.317,-72.317) Rittmann ENVELOPE(165.500,165.500,-73.450,-73.450) Mount Rittmann ENVELOPE(165.500,165.500,-73.450,-73.450) Scientific Reports 9 1 |
institution |
Open Polar |
collection |
IRIS Università degli Studi di Perugia |
op_collection_id |
ftuniperugiairis |
language |
English |
topic |
Discovery of a new cryptotephra Cape Hallett (northern Victoria Land) Mount Rittmann volcano |
spellingShingle |
Discovery of a new cryptotephra Cape Hallett (northern Victoria Land) Mount Rittmann volcano Di Roberto, Alessio Colizza, Ester Del Carlo, Paola Petrelli, Maurizio Finocchiaro, Furio Kuhn, Gerhard First marine cryptotephra in Antarctica found in sediments of the western Ross Sea correlates with englacial tephras and climate records |
topic_facet |
Discovery of a new cryptotephra Cape Hallett (northern Victoria Land) Mount Rittmann volcano |
description |
We report the discovery of an important new cryptotephra within marine sediments close to Cape Hallett (northern Victoria Land), in the western Ross Sea, Antarctica. The cryptotephra is fully characterized for its texture, mineralogy and major- and trace-element data obtained on single glass shards. On the basis of geochemical composition, the cryptotephra is unequivocally correlated with the proximal deposits of an explosive eruption of the poorly known Mount Rittmann volcano, situated in northern Victoria Land. The cryptotephra is also correlated with a widespread tephra layer, which was erupted in 1254 C.E. and is present in numerous ice-cores and blue ice fields across East and West Antarctica. The characteristics of the tephra indicate that it was produced by a prolonged, moderate energy, mostly hydromagmatic eruption. This is the first time that a cryptotephra has been identified in marine sediments of the Ross Sea and in ice cores. It provides an important new and widespread stratigraphical datum with which the continental cryosphere and marine sedimentological records in Antarctica can be correlated. Moreover, from a purely volcanological point of view, the discovery further confirms the occurrence of a long-lasting, significant explosive eruption from Mount Rittmann in historical times that produced abundant widely dispersed fine ash. The study also highlights the inadequacy of current hazard assessments for poorly known volcanoes such as Mount Rittmann, located at high southern latitudes. |
author2 |
Di Roberto, Alessio Colizza, Ester Del Carlo, Paola Petrelli, Maurizio Finocchiaro, Furio Kuhn, Gerhard |
format |
Article in Journal/Newspaper |
author |
Di Roberto, Alessio Colizza, Ester Del Carlo, Paola Petrelli, Maurizio Finocchiaro, Furio Kuhn, Gerhard |
author_facet |
Di Roberto, Alessio Colizza, Ester Del Carlo, Paola Petrelli, Maurizio Finocchiaro, Furio Kuhn, Gerhard |
author_sort |
Di Roberto, Alessio |
title |
First marine cryptotephra in Antarctica found in sediments of the western Ross Sea correlates with englacial tephras and climate records |
title_short |
First marine cryptotephra in Antarctica found in sediments of the western Ross Sea correlates with englacial tephras and climate records |
title_full |
First marine cryptotephra in Antarctica found in sediments of the western Ross Sea correlates with englacial tephras and climate records |
title_fullStr |
First marine cryptotephra in Antarctica found in sediments of the western Ross Sea correlates with englacial tephras and climate records |
title_full_unstemmed |
First marine cryptotephra in Antarctica found in sediments of the western Ross Sea correlates with englacial tephras and climate records |
title_sort |
first marine cryptotephra in antarctica found in sediments of the western ross sea correlates with englacial tephras and climate records |
publishDate |
2019 |
url |
https://hdl.handle.net/11391/1452357 https://doi.org/10.1038/s41598-019-47188-3 |
long_lat |
ENVELOPE(170.217,170.217,-72.317,-72.317) ENVELOPE(170.217,170.217,-72.317,-72.317) ENVELOPE(165.500,165.500,-73.450,-73.450) ENVELOPE(165.500,165.500,-73.450,-73.450) |
geographic |
Ross Sea West Antarctica Victoria Land Hallett Cape Hallett Rittmann Mount Rittmann |
geographic_facet |
Ross Sea West Antarctica Victoria Land Hallett Cape Hallett Rittmann Mount Rittmann |
genre |
Antarc* Antarctica Ross Sea Victoria Land West Antarctica |
genre_facet |
Antarc* Antarctica Ross Sea Victoria Land West Antarctica |
op_relation |
info:eu-repo/semantics/altIdentifier/pmid/31337844 info:eu-repo/semantics/altIdentifier/wos/WOS:000476718900015 volume:9 issue:1 firstpage:10628 journal:SCIENTIFIC REPORTS https://hdl.handle.net/11391/1452357 doi:10.1038/s41598-019-47188-3 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85069648384 |
op_doi |
https://doi.org/10.1038/s41598-019-47188-3 |
container_title |
Scientific Reports |
container_volume |
9 |
container_issue |
1 |
_version_ |
1790600347272609792 |