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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Online Access: | http://hdl.handle.net/2122/13081 https://doi.org/10.1038/s41598-019-47188-3 |
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ftingv:oai:www.earth-prints.org:2122/13081 2023-05-15T14:01:37+02:00 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 Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Pisa, Pisa, Italia #PLACEHOLDER_PARENT_METADATA_VALUE# 2019-07-23 http://hdl.handle.net/2122/13081 https://doi.org/10.1038/s41598-019-47188-3 en eng Scientific Reports /9 (2019) 2045-2322 http://hdl.handle.net/2122/13081 doi:10.1038/s41598-019-47188-3 open article 2019 ftingv https://doi.org/10.1038/s41598-019-47188-3 2022-07-29T06:07:59Z 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. Published id 10628 1V. Storia eruttiva JCR Journal Article in Journal/Newspaper Antarc* Antarctica Ross Sea Victoria Land West Antarctica Earth-Prints (Istituto Nazionale di Geofisica e Vulcanologia) Cape Hallett ENVELOPE(170.217,170.217,-72.317,-72.317) Hallett ENVELOPE(170.217,170.217,-72.317,-72.317) Mount Rittmann ENVELOPE(165.500,165.500,-73.450,-73.450) Rittmann ENVELOPE(165.500,165.500,-73.450,-73.450) Ross Sea Victoria Land West Antarctica Scientific Reports 9 1 |
institution |
Open Polar |
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Earth-Prints (Istituto Nazionale di Geofisica e Vulcanologia) |
op_collection_id |
ftingv |
language |
English |
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. Published id 10628 1V. Storia eruttiva JCR Journal |
author2 |
Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Pisa, Pisa, Italia #PLACEHOLDER_PARENT_METADATA_VALUE# |
format |
Article in Journal/Newspaper |
author |
Di Roberto, Alessio Colizza, Ester Del Carlo, Paola Petrelli, Maurizio Finocchiaro, Furio Kuhn, Gerhard |
spellingShingle |
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 |
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 |
http://hdl.handle.net/2122/13081 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 |
Cape Hallett Hallett Mount Rittmann Rittmann Ross Sea Victoria Land West Antarctica |
geographic_facet |
Cape Hallett Hallett Mount Rittmann Rittmann Ross Sea Victoria Land West Antarctica |
genre |
Antarc* Antarctica Ross Sea Victoria Land West Antarctica |
genre_facet |
Antarc* Antarctica Ross Sea Victoria Land West Antarctica |
op_relation |
Scientific Reports /9 (2019) 2045-2322 http://hdl.handle.net/2122/13081 doi:10.1038/s41598-019-47188-3 |
op_rights |
open |
op_doi |
https://doi.org/10.1038/s41598-019-47188-3 |
container_title |
Scientific Reports |
container_volume |
9 |
container_issue |
1 |
_version_ |
1766271576321294336 |