Gas Emissions From the Western Aleutians Volcanic Arc
The Aleutian Arc is remote and highly active volcanically. Its 4,000 km extent from mainland Alaska to Russia’s Kamchatka peninsula hosts over 140 volcanic centers of which about 50 have erupted in historic times. We present data of volcanic gas samples and gas emission measurements obtained during...
Published in: | Frontiers in Earth Science |
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ftunivrhodeislan:oai:digitalcommons.uri.edu:gsofacpubs-2542 2024-01-14T10:08:17+01:00 Gas Emissions From the Western Aleutians Volcanic Arc Fischer, Tobias P. Lopez, Taryn M. Aiuppa, Alessandro Rizzo, Andrea L. Ilanko, Tehnuka Kelley, Katherine A. Cottrell, Elizabeth 2021-12-06T08:00:00Z https://digitalcommons.uri.edu/gsofacpubs/1573 https://doi.org/10.3389/feart.2021.786021 unknown DigitalCommons@URI https://digitalcommons.uri.edu/gsofacpubs/1573 doi:10.3389/feart.2021.786021 https://doi.org/10.3389/feart.2021.786021 Graduate School of Oceanography Faculty Publications Aleutians gas geochemistry volatiles volcano text 2021 ftunivrhodeislan https://doi.org/10.3389/feart.2021.786021 2023-12-18T19:10:01Z The Aleutian Arc is remote and highly active volcanically. Its 4,000 km extent from mainland Alaska to Russia’s Kamchatka peninsula hosts over 140 volcanic centers of which about 50 have erupted in historic times. We present data of volcanic gas samples and gas emission measurements obtained during an expedition to the western-most segment of the arc in September 2015 in order to extend the sparse knowledge on volatile emissions from this remote but volcanically active region. Some of the volcanoes investigated here have not been sampled for gases before this writing. Our data show that all volcanoes host high-temperature magmatic-hydrothermal systems and have gas discharges typical of volcanoes in oceanic arcs. Based on helium isotopes, the western Aleutian Arc segment has minimal volatile contributions from the overriding crust. Volcanic CO2 fluxes from this arc segment are small, compared to the emissions from volcanoes on the Alaska Peninsula and mainland Alaska. The comparatively low CO2 emissions may be related to the lower sediment flux delivered to the trench in this part of the arc. Text Kamchatka Kamchatka Peninsula Alaska University of Rhode Island: DigitalCommons@URI Kamchatka Peninsula ENVELOPE(160.000,160.000,56.000,56.000) Frontiers in Earth Science 9 |
institution |
Open Polar |
collection |
University of Rhode Island: DigitalCommons@URI |
op_collection_id |
ftunivrhodeislan |
language |
unknown |
topic |
Aleutians gas geochemistry volatiles volcano |
spellingShingle |
Aleutians gas geochemistry volatiles volcano Fischer, Tobias P. Lopez, Taryn M. Aiuppa, Alessandro Rizzo, Andrea L. Ilanko, Tehnuka Kelley, Katherine A. Cottrell, Elizabeth Gas Emissions From the Western Aleutians Volcanic Arc |
topic_facet |
Aleutians gas geochemistry volatiles volcano |
description |
The Aleutian Arc is remote and highly active volcanically. Its 4,000 km extent from mainland Alaska to Russia’s Kamchatka peninsula hosts over 140 volcanic centers of which about 50 have erupted in historic times. We present data of volcanic gas samples and gas emission measurements obtained during an expedition to the western-most segment of the arc in September 2015 in order to extend the sparse knowledge on volatile emissions from this remote but volcanically active region. Some of the volcanoes investigated here have not been sampled for gases before this writing. Our data show that all volcanoes host high-temperature magmatic-hydrothermal systems and have gas discharges typical of volcanoes in oceanic arcs. Based on helium isotopes, the western Aleutian Arc segment has minimal volatile contributions from the overriding crust. Volcanic CO2 fluxes from this arc segment are small, compared to the emissions from volcanoes on the Alaska Peninsula and mainland Alaska. The comparatively low CO2 emissions may be related to the lower sediment flux delivered to the trench in this part of the arc. |
format |
Text |
author |
Fischer, Tobias P. Lopez, Taryn M. Aiuppa, Alessandro Rizzo, Andrea L. Ilanko, Tehnuka Kelley, Katherine A. Cottrell, Elizabeth |
author_facet |
Fischer, Tobias P. Lopez, Taryn M. Aiuppa, Alessandro Rizzo, Andrea L. Ilanko, Tehnuka Kelley, Katherine A. Cottrell, Elizabeth |
author_sort |
Fischer, Tobias P. |
title |
Gas Emissions From the Western Aleutians Volcanic Arc |
title_short |
Gas Emissions From the Western Aleutians Volcanic Arc |
title_full |
Gas Emissions From the Western Aleutians Volcanic Arc |
title_fullStr |
Gas Emissions From the Western Aleutians Volcanic Arc |
title_full_unstemmed |
Gas Emissions From the Western Aleutians Volcanic Arc |
title_sort |
gas emissions from the western aleutians volcanic arc |
publisher |
DigitalCommons@URI |
publishDate |
2021 |
url |
https://digitalcommons.uri.edu/gsofacpubs/1573 https://doi.org/10.3389/feart.2021.786021 |
long_lat |
ENVELOPE(160.000,160.000,56.000,56.000) |
geographic |
Kamchatka Peninsula |
geographic_facet |
Kamchatka Peninsula |
genre |
Kamchatka Kamchatka Peninsula Alaska |
genre_facet |
Kamchatka Kamchatka Peninsula Alaska |
op_source |
Graduate School of Oceanography Faculty Publications |
op_relation |
https://digitalcommons.uri.edu/gsofacpubs/1573 doi:10.3389/feart.2021.786021 https://doi.org/10.3389/feart.2021.786021 |
op_doi |
https://doi.org/10.3389/feart.2021.786021 |
container_title |
Frontiers in Earth Science |
container_volume |
9 |
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1788062709565095936 |