A record of volcanic eruptions over the past 2,200 years from Vostok firn cores, central East Antarctica

Introduction: The products of volcanic eruptions found in the snow, firn and ice deposits of the polar ice sheets are precious sources of information on the volcanic forcing of the climate system in the recent or remote past. On the other hand, the layers containing the traces of well-known eruption...

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Published in:Frontiers in Earth Science
Main Authors: Arina N. Veres, Alexey A. Ekaykin, Liudmila P. Golobokova, Tamara V. Khodzher, Olga I. Khuriganowa, Alexey V. Turkeev
Format: Article in Journal/Newspaper
Language:English
Published: Frontiers Media S.A. 2023
Subjects:
Q
Online Access:https://doi.org/10.3389/feart.2023.1075739
https://doaj.org/article/1cc481baa8284b2d8959ee5ef7a5c431
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spelling ftdoajarticles:oai:doaj.org/article:1cc481baa8284b2d8959ee5ef7a5c431 2023-05-15T13:49:54+02:00 A record of volcanic eruptions over the past 2,200 years from Vostok firn cores, central East Antarctica Arina N. Veres Alexey A. Ekaykin Liudmila P. Golobokova Tamara V. Khodzher Olga I. Khuriganowa Alexey V. Turkeev 2023-01-01T00:00:00Z https://doi.org/10.3389/feart.2023.1075739 https://doaj.org/article/1cc481baa8284b2d8959ee5ef7a5c431 EN eng Frontiers Media S.A. https://www.frontiersin.org/articles/10.3389/feart.2023.1075739/full https://doaj.org/toc/2296-6463 2296-6463 doi:10.3389/feart.2023.1075739 https://doaj.org/article/1cc481baa8284b2d8959ee5ef7a5c431 Frontiers in Earth Science, Vol 11 (2023) volcanic inventory Vostok station Late Holocene firn core East Antarctica non-sea-salt sulfates Science Q article 2023 ftdoajarticles https://doi.org/10.3389/feart.2023.1075739 2023-01-29T01:28:57Z Introduction: The products of volcanic eruptions found in the snow, firn and ice deposits of the polar ice sheets are precious sources of information on the volcanic forcing of the climate system in the recent or remote past. On the other hand, the layers containing the traces of well-known eruptions serve as absolute age markers that help to construct the depth-age scale for the snow-firn thickness.Methods: In this study we present new records of the sulfate concentrations and electrical conductivity (ECM) from three shallow (up to 70 m depth) firn cores drilled in the vicinity of Vostok station (central East Antarctica).Results: In the non-sea-salt sulfate and ECM profiles we were able to identify 68 peaks that can be interpreted as traces of volcanic events.Discussion: 22 of these peaks can be unambiguously attributed to well-known volcanic eruptions (including Tambora 1816 CE, Huaynaputina 1601 CE, Samalas 1258 CE, Ilopango 541 CE and others), which allowed to construct a robust depth-age scale for the cores. 37 events have their counterparts in other Antarctic cores, but cannot be associated with welldated eruptions. Finally, 9 peaks do not have analogues in the other cores, i.e., they may be traces of so far unknown volcanic events. According to the newly constructed depth-age function, the deepest studied firn layers (70.20 m) are dated by 192 BCE. Article in Journal/Newspaper Antarc* Antarctic Antarctica East Antarctica Directory of Open Access Journals: DOAJ Articles Antarctic East Antarctica Vostok Station ENVELOPE(106.837,106.837,-78.464,-78.464) Frontiers in Earth Science 11
institution Open Polar
collection Directory of Open Access Journals: DOAJ Articles
op_collection_id ftdoajarticles
language English
topic volcanic inventory
Vostok station
Late Holocene
firn core
East Antarctica
non-sea-salt sulfates
Science
Q
spellingShingle volcanic inventory
Vostok station
Late Holocene
firn core
East Antarctica
non-sea-salt sulfates
Science
Q
Arina N. Veres
Alexey A. Ekaykin
Liudmila P. Golobokova
Tamara V. Khodzher
Olga I. Khuriganowa
Alexey V. Turkeev
A record of volcanic eruptions over the past 2,200 years from Vostok firn cores, central East Antarctica
topic_facet volcanic inventory
Vostok station
Late Holocene
firn core
East Antarctica
non-sea-salt sulfates
Science
Q
description Introduction: The products of volcanic eruptions found in the snow, firn and ice deposits of the polar ice sheets are precious sources of information on the volcanic forcing of the climate system in the recent or remote past. On the other hand, the layers containing the traces of well-known eruptions serve as absolute age markers that help to construct the depth-age scale for the snow-firn thickness.Methods: In this study we present new records of the sulfate concentrations and electrical conductivity (ECM) from three shallow (up to 70 m depth) firn cores drilled in the vicinity of Vostok station (central East Antarctica).Results: In the non-sea-salt sulfate and ECM profiles we were able to identify 68 peaks that can be interpreted as traces of volcanic events.Discussion: 22 of these peaks can be unambiguously attributed to well-known volcanic eruptions (including Tambora 1816 CE, Huaynaputina 1601 CE, Samalas 1258 CE, Ilopango 541 CE and others), which allowed to construct a robust depth-age scale for the cores. 37 events have their counterparts in other Antarctic cores, but cannot be associated with welldated eruptions. Finally, 9 peaks do not have analogues in the other cores, i.e., they may be traces of so far unknown volcanic events. According to the newly constructed depth-age function, the deepest studied firn layers (70.20 m) are dated by 192 BCE.
format Article in Journal/Newspaper
author Arina N. Veres
Alexey A. Ekaykin
Liudmila P. Golobokova
Tamara V. Khodzher
Olga I. Khuriganowa
Alexey V. Turkeev
author_facet Arina N. Veres
Alexey A. Ekaykin
Liudmila P. Golobokova
Tamara V. Khodzher
Olga I. Khuriganowa
Alexey V. Turkeev
author_sort Arina N. Veres
title A record of volcanic eruptions over the past 2,200 years from Vostok firn cores, central East Antarctica
title_short A record of volcanic eruptions over the past 2,200 years from Vostok firn cores, central East Antarctica
title_full A record of volcanic eruptions over the past 2,200 years from Vostok firn cores, central East Antarctica
title_fullStr A record of volcanic eruptions over the past 2,200 years from Vostok firn cores, central East Antarctica
title_full_unstemmed A record of volcanic eruptions over the past 2,200 years from Vostok firn cores, central East Antarctica
title_sort record of volcanic eruptions over the past 2,200 years from vostok firn cores, central east antarctica
publisher Frontiers Media S.A.
publishDate 2023
url https://doi.org/10.3389/feart.2023.1075739
https://doaj.org/article/1cc481baa8284b2d8959ee5ef7a5c431
long_lat ENVELOPE(106.837,106.837,-78.464,-78.464)
geographic Antarctic
East Antarctica
Vostok Station
geographic_facet Antarctic
East Antarctica
Vostok Station
genre Antarc*
Antarctic
Antarctica
East Antarctica
genre_facet Antarc*
Antarctic
Antarctica
East Antarctica
op_source Frontiers in Earth Science, Vol 11 (2023)
op_relation https://www.frontiersin.org/articles/10.3389/feart.2023.1075739/full
https://doaj.org/toc/2296-6463
2296-6463
doi:10.3389/feart.2023.1075739
https://doaj.org/article/1cc481baa8284b2d8959ee5ef7a5c431
op_doi https://doi.org/10.3389/feart.2023.1075739
container_title Frontiers in Earth Science
container_volume 11
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