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...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2021-12-01
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| Series: | Frontiers in Earth Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/feart.2021.786021/full |
| _version_ | 1818571052987449344 |
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| author | Tobias P. Fischer Taryn M. Lopez Alessandro Aiuppa Andrea L. Rizzo Tehnuka Ilanko Katherine A. Kelley Elizabeth Cottrell |
| author_facet | Tobias P. Fischer Taryn M. Lopez Alessandro Aiuppa Andrea L. Rizzo Tehnuka Ilanko Katherine A. Kelley Elizabeth Cottrell |
| author_sort | Tobias P. Fischer |
| collection | DOAJ |
| 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. |
| first_indexed | 2024-12-14T13:50:26Z |
| format | Article |
| id | doaj.art-f06d225f5f474832bfe14ef3268000e4 |
| institution | Directory Open Access Journal |
| issn | 2296-6463 |
| language | English |
| last_indexed | 2024-12-14T13:50:26Z |
| publishDate | 2021-12-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Earth Science |
| spelling | doaj.art-f06d225f5f474832bfe14ef3268000e42022-12-21T22:59:07ZengFrontiers Media S.A.Frontiers in Earth Science2296-64632021-12-01910.3389/feart.2021.786021786021Gas Emissions From the Western Aleutians Volcanic ArcTobias P. Fischer0Taryn M. Lopez1Alessandro Aiuppa2Andrea L. Rizzo3Tehnuka Ilanko4Katherine A. Kelley5Elizabeth Cottrell6Department of Earth and Planetary Sciences, University of New Mexico, Albuquerque, NM, United StatesGeophysical Institute, University of Alaska Fairbanks, Fairbanks, AK, United StatesDipartimento di Scienze Della Terra e Del Mare, Università di Palermo, Palermo, ItalyIstituto Nazionale di Geofisica e Vulcanologia, Sezione di Palermo, Palermo, ItalyTe Aka Mātuatua - School of Science, University of Waikato, Hamilton, New ZealandGraduate School of Oceanography, University of Rhode Island, Washington County, RI, United StatesDepartment of Mineral Sciences, National Museum of Natural History, Smithsonian Institution, Washington, VA, United StatesThe 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.https://www.frontiersin.org/articles/10.3389/feart.2021.786021/fullAleutiansvolcanogasvolatilesgeochemistry |
| spellingShingle | Tobias P. Fischer Taryn M. Lopez Alessandro Aiuppa Andrea L. Rizzo Tehnuka Ilanko Katherine A. Kelley Elizabeth Cottrell Gas Emissions From the Western Aleutians Volcanic Arc Frontiers in Earth Science Aleutians volcano gas volatiles geochemistry |
| title | 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_short | Gas Emissions From the Western Aleutians Volcanic Arc |
| title_sort | gas emissions from the western aleutians volcanic arc |
| topic | Aleutians volcano gas volatiles geochemistry |
| url | https://www.frontiersin.org/articles/10.3389/feart.2021.786021/full |
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