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Authors: Guardo, Roberto
De Siena, Luca
Prudencio, Janire
Ventura, Guido
Title: Imaging the absorbing feeding and eruptive pathways of Deception Island, Antarctica
Online publication date: 9-Feb-2023
Year of first publication: 2022
Language: english
Abstract: Deception Island is one of the most active and best-documented volcanoes in Antarctica. Since its last eruption in 1970, several geophysical surveys have targeted reconstructing its magmatic systems. However, geophysics fails to reconstruct the pathways magma and fluids follow from depth to erupt at the surface. Here, novel data selection strategies and multi-frequency absorption inversions have been framed in a Geographical Information System, using all available geological (vents and faults distribution), geochemical and geophysical knowledge of the volcano. The result is the detection of these eruptive pathways. The model offers the first image of the magma and associated fluids pathways feed the 1967, 1969, and 1970 eruptions. Results suggest that future ascending paths might lead to active research bases and zones of planned helicopter rescue. The connection between seismic absorption, temperature, and fluid content makes it a promising attribute for detecting and monitoring eruptions at active calderas.
DDC: 550 Geowissenschaften
550 Earth sciences
Institution: Johannes Gutenberg-Universität Mainz
Department: FB 09 Chemie, Pharmazie u. Geowissensch.
Place: Mainz
Version: Published version
Publication type: Zeitschriftenaufsatz
License: CC BY-NC-ND
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Journal: Geophysical research letters
Pages or article number: e2022GL099540
Publisher: Wiley
Publisher place: Hoboken, NJ
Issue date: 2022
ISSN: 1944-8007
Publisher DOI: 10.1029/2022GL099540
Appears in collections:DFG-491381577-H

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