Hydrogen emissions from Erebus volcano, Antarctica
The continuous measurement of molecular hydrogen (H2) emissions from passively degassing volcanoes has recently been made possible using a new generation of low-cost electrochemical sensors. We have used such sensors to measure H2, along with SO2, H2O and CO2, in the gas and aerosol plume emitted fr...
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Online Access: | http://hdl.handle.net/2122/8932 https://doi.org/10.1007/s00445-012-0649-2 |
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ftingv:oai:www.earth-prints.org:2122/8932 2023-05-15T14:01:37+02:00 Hydrogen emissions from Erebus volcano, Antarctica Moussallam, Y. Oppenheimer, C. Aiuppa, A. Giudice, G. Moussallam, M. Kyle, P. Moussallam, Y.; Cambridge Univ Oppenheimer, C.; Cambridge Univ Aiuppa, A.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Palermo, Palermo, Italia Giudice, G.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Palermo, Palermo, Italia Moussallam, M.; Institut Telecom-Telecom ParisTech Kyle, P.; Univ New Mexico Cambridge Univ #PLACEHOLDER_PARENT_METADATA_VALUE# Istituto Nazionale di Geofisica e Vulcanologia, Sezione Palermo, Palermo, Italia Institut Telecom-Telecom ParisTech Univ New Mexico 2012-11-01 http://hdl.handle.net/2122/8932 https://doi.org/10.1007/s00445-012-0649-2 en eng Springer Berlin Heidelberg Bulletin of volcanology /74 (2012) 0258-8900 1432-0819 http://hdl.handle.net/2122/8932 doi:10.1007/s00445-012-0649-2 restricted Erebus volcano Hydrogen Lava lake Magma redox conditions Volcanic degassing 04. Solid Earth::04.08. Volcanology::04.08.01. Gases article 2012 ftingv https://doi.org/10.1007/s00445-012-0649-2 2022-07-29T06:06:34Z The continuous measurement of molecular hydrogen (H2) emissions from passively degassing volcanoes has recently been made possible using a new generation of low-cost electrochemical sensors. We have used such sensors to measure H2, along with SO2, H2O and CO2, in the gas and aerosol plume emitted from the phonolite lava lake at Erebus volcano, Antarctica. The measurements were made at the crater rim between December 2010 and January 2011. Combined with measurements of the long-term SO2 emission rate for Erebus, they indicate a characteristic H2 flux of 0. 03 kg s-1 (2. 8 Mg day-1). The observed H2 content in the plume is consistent with previous estimates of redox conditions in the lava lake inferred from mineral compositions and the observed CO2/CO ratio in the gas plume (~0. 9 log units below the quartz-fayalite-magnetite buffer). These measurements suggest that H2 does not combust at the surface of the lake, and that H2 is kinetically inert in the gas/aerosol plume, retaining the signature of the high-temperature chemical equilibrium reached in the lava lake. We also observe a cyclical variation in the H2/SO2 ratio with a period of ~10 min. These cycles correspond to oscillatory patterns of surface motion of the lava lake that have been interpreted as signs of a pulsatory magma supply at the top of the magmatic conduit. Published 2109 – 2120 5V. Sorveglianza vulcanica ed emergenze JCR Journal restricted Article in Journal/Newspaper Antarc* Antarctica Earth-Prints (Istituto Nazionale di Geofisica e Vulcanologia) Lava Lake ENVELOPE(-128.996,-128.996,55.046,55.046) Bulletin of Volcanology 74 9 2109 2120 |
institution |
Open Polar |
collection |
Earth-Prints (Istituto Nazionale di Geofisica e Vulcanologia) |
op_collection_id |
ftingv |
language |
English |
topic |
Erebus volcano Hydrogen Lava lake Magma redox conditions Volcanic degassing 04. Solid Earth::04.08. Volcanology::04.08.01. Gases |
spellingShingle |
Erebus volcano Hydrogen Lava lake Magma redox conditions Volcanic degassing 04. Solid Earth::04.08. Volcanology::04.08.01. Gases Moussallam, Y. Oppenheimer, C. Aiuppa, A. Giudice, G. Moussallam, M. Kyle, P. Hydrogen emissions from Erebus volcano, Antarctica |
topic_facet |
Erebus volcano Hydrogen Lava lake Magma redox conditions Volcanic degassing 04. Solid Earth::04.08. Volcanology::04.08.01. Gases |
description |
The continuous measurement of molecular hydrogen (H2) emissions from passively degassing volcanoes has recently been made possible using a new generation of low-cost electrochemical sensors. We have used such sensors to measure H2, along with SO2, H2O and CO2, in the gas and aerosol plume emitted from the phonolite lava lake at Erebus volcano, Antarctica. The measurements were made at the crater rim between December 2010 and January 2011. Combined with measurements of the long-term SO2 emission rate for Erebus, they indicate a characteristic H2 flux of 0. 03 kg s-1 (2. 8 Mg day-1). The observed H2 content in the plume is consistent with previous estimates of redox conditions in the lava lake inferred from mineral compositions and the observed CO2/CO ratio in the gas plume (~0. 9 log units below the quartz-fayalite-magnetite buffer). These measurements suggest that H2 does not combust at the surface of the lake, and that H2 is kinetically inert in the gas/aerosol plume, retaining the signature of the high-temperature chemical equilibrium reached in the lava lake. We also observe a cyclical variation in the H2/SO2 ratio with a period of ~10 min. These cycles correspond to oscillatory patterns of surface motion of the lava lake that have been interpreted as signs of a pulsatory magma supply at the top of the magmatic conduit. Published 2109 – 2120 5V. Sorveglianza vulcanica ed emergenze JCR Journal restricted |
author2 |
Moussallam, Y.; Cambridge Univ Oppenheimer, C.; Cambridge Univ Aiuppa, A.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Palermo, Palermo, Italia Giudice, G.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Palermo, Palermo, Italia Moussallam, M.; Institut Telecom-Telecom ParisTech Kyle, P.; Univ New Mexico Cambridge Univ #PLACEHOLDER_PARENT_METADATA_VALUE# Istituto Nazionale di Geofisica e Vulcanologia, Sezione Palermo, Palermo, Italia Institut Telecom-Telecom ParisTech Univ New Mexico |
format |
Article in Journal/Newspaper |
author |
Moussallam, Y. Oppenheimer, C. Aiuppa, A. Giudice, G. Moussallam, M. Kyle, P. |
author_facet |
Moussallam, Y. Oppenheimer, C. Aiuppa, A. Giudice, G. Moussallam, M. Kyle, P. |
author_sort |
Moussallam, Y. |
title |
Hydrogen emissions from Erebus volcano, Antarctica |
title_short |
Hydrogen emissions from Erebus volcano, Antarctica |
title_full |
Hydrogen emissions from Erebus volcano, Antarctica |
title_fullStr |
Hydrogen emissions from Erebus volcano, Antarctica |
title_full_unstemmed |
Hydrogen emissions from Erebus volcano, Antarctica |
title_sort |
hydrogen emissions from erebus volcano, antarctica |
publisher |
Springer Berlin Heidelberg |
publishDate |
2012 |
url |
http://hdl.handle.net/2122/8932 https://doi.org/10.1007/s00445-012-0649-2 |
long_lat |
ENVELOPE(-128.996,-128.996,55.046,55.046) |
geographic |
Lava Lake |
geographic_facet |
Lava Lake |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_relation |
Bulletin of volcanology /74 (2012) 0258-8900 1432-0819 http://hdl.handle.net/2122/8932 doi:10.1007/s00445-012-0649-2 |
op_rights |
restricted |
op_doi |
https://doi.org/10.1007/s00445-012-0649-2 |
container_title |
Bulletin of Volcanology |
container_volume |
74 |
container_issue |
9 |
container_start_page |
2109 |
op_container_end_page |
2120 |
_version_ |
1766271560278081536 |