A multidisciplinary approach to quantify the permeability of the Whakaari/White Island volcanic hydrothermal system (Taupo Volcanic Zone, New Zealand)
International audience Our multidisciplinary study aims to better understand the permeability of active volcanic hydrothermal systems, a vital prerequisite for modelling and understanding their behaviour and evolution. Whakaari/White Island volcano (an active stratovolcano at the north-eastern end o...
Published in: | Journal of Volcanology and Geothermal Research |
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Language: | English |
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Online Access: | https://hal-insu.archives-ouvertes.fr/insu-03707914 https://doi.org/10.1016/j.jvolgeores.2016.12.004 |
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ftccsdartic:oai:HAL:insu-03707914v1 2023-05-15T18:43:35+02:00 A multidisciplinary approach to quantify the permeability of the Whakaari/White Island volcanic hydrothermal system (Taupo Volcanic Zone, New Zealand) Heap, Michael J. Kennedy, Ben M. Farquharson, Jamie I. Ashworth, James Mayer, Klaus Letham-Brake, Mark Reuschlé, Thierry Gilg, H. Albert Scheu, Bettina Lavallée, Yan Siratovich, Paul Cole, Jim Jolly, Arthur D. Baud, Patrick Dingwell, Donald B. Ecole et Observatoire des Sciences de la Terre (EOST) Université de Strasbourg (UNISTRA)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) 2017 https://hal-insu.archives-ouvertes.fr/insu-03707914 https://doi.org/10.1016/j.jvolgeores.2016.12.004 en eng HAL CCSD info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jvolgeores.2016.12.004 insu-03707914 https://hal-insu.archives-ouvertes.fr/insu-03707914 BIBCODE: 2017JVGR.332.88H doi:10.1016/j.jvolgeores.2016.12.004 Journal of Volcanology and Geothermal Research https://hal-insu.archives-ouvertes.fr/insu-03707914 Journal of Volcanology and Geothermal Research, 2017, 332, pp.88-108. ⟨10.1016/j.jvolgeores.2016.12.004⟩ Alteration Fracture Porosity Permeability Lava Tuff Pore pressure [SDU]Sciences of the Universe [physics] info:eu-repo/semantics/article Journal articles 2017 ftccsdartic https://doi.org/10.1016/j.jvolgeores.2016.12.004 2023-03-26T07:48:23Z International audience Our multidisciplinary study aims to better understand the permeability of active volcanic hydrothermal systems, a vital prerequisite for modelling and understanding their behaviour and evolution. Whakaari/White Island volcano (an active stratovolcano at the north-eastern end of the Taupo Volcanic Zone of New Zealand) hosts a highly reactive hydrothermal system and represents an ideal natural laboratory to undertake such a study. We first gained an appreciation of the different lithologies at Whakaari and (where possible) their lateral and vertical extent through reconnaissance by land, sea, and air. The main crater, filled with tephra deposits, is shielded by a volcanic amphitheatre comprising interbedded lavas, lava breccias, and tuffs. We deployed field techniques to measure the permeability and density/porosity of (1) > 100 hand-sized sample blocks and (2) layered unlithified deposits in eight purpose-dug trenches. Our field measurements were then groundtruthed using traditional laboratory techniques on almost 150 samples. Our measurements highlight that the porosity of the materials at Whakaari varies from ∼ 0.01 to ∼ 0.7 and permeability varies by eight orders of magnitude (from ∼ 10 -19 to ∼ 10 -11 m 2 ). The wide range in physical and hydraulic properties is the result of the numerous lithologies and their varied microstructures and alteration intensities, as exposed by a combination of macroscopic and microscopic (scanning electron microscopy) observations, quantitative mineralogical studies (X-ray powder diffraction), and mercury porosimetry. An understanding of the spatial distribution of lithology and alteration style/intensity is therefore important to decipher fluid flow within the Whakaari volcanic hydrothermal system. We align our field observations and porosity/permeability measurements to construct a schematic cross section of Whakaari that highlights the salient findings of our study. Taken together, the alteration typical of a volcanic hydrothermal system can result ... Article in Journal/Newspaper White Island Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Main Crater ENVELOPE(167.167,167.167,-77.533,-77.533) New Zealand White Island ENVELOPE(48.583,48.583,-66.733,-66.733) Journal of Volcanology and Geothermal Research 332 88 108 |
institution |
Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
Alteration Fracture Porosity Permeability Lava Tuff Pore pressure [SDU]Sciences of the Universe [physics] |
spellingShingle |
Alteration Fracture Porosity Permeability Lava Tuff Pore pressure [SDU]Sciences of the Universe [physics] Heap, Michael J. Kennedy, Ben M. Farquharson, Jamie I. Ashworth, James Mayer, Klaus Letham-Brake, Mark Reuschlé, Thierry Gilg, H. Albert Scheu, Bettina Lavallée, Yan Siratovich, Paul Cole, Jim Jolly, Arthur D. Baud, Patrick Dingwell, Donald B. A multidisciplinary approach to quantify the permeability of the Whakaari/White Island volcanic hydrothermal system (Taupo Volcanic Zone, New Zealand) |
topic_facet |
Alteration Fracture Porosity Permeability Lava Tuff Pore pressure [SDU]Sciences of the Universe [physics] |
description |
International audience Our multidisciplinary study aims to better understand the permeability of active volcanic hydrothermal systems, a vital prerequisite for modelling and understanding their behaviour and evolution. Whakaari/White Island volcano (an active stratovolcano at the north-eastern end of the Taupo Volcanic Zone of New Zealand) hosts a highly reactive hydrothermal system and represents an ideal natural laboratory to undertake such a study. We first gained an appreciation of the different lithologies at Whakaari and (where possible) their lateral and vertical extent through reconnaissance by land, sea, and air. The main crater, filled with tephra deposits, is shielded by a volcanic amphitheatre comprising interbedded lavas, lava breccias, and tuffs. We deployed field techniques to measure the permeability and density/porosity of (1) > 100 hand-sized sample blocks and (2) layered unlithified deposits in eight purpose-dug trenches. Our field measurements were then groundtruthed using traditional laboratory techniques on almost 150 samples. Our measurements highlight that the porosity of the materials at Whakaari varies from ∼ 0.01 to ∼ 0.7 and permeability varies by eight orders of magnitude (from ∼ 10 -19 to ∼ 10 -11 m 2 ). The wide range in physical and hydraulic properties is the result of the numerous lithologies and their varied microstructures and alteration intensities, as exposed by a combination of macroscopic and microscopic (scanning electron microscopy) observations, quantitative mineralogical studies (X-ray powder diffraction), and mercury porosimetry. An understanding of the spatial distribution of lithology and alteration style/intensity is therefore important to decipher fluid flow within the Whakaari volcanic hydrothermal system. We align our field observations and porosity/permeability measurements to construct a schematic cross section of Whakaari that highlights the salient findings of our study. Taken together, the alteration typical of a volcanic hydrothermal system can result ... |
author2 |
Ecole et Observatoire des Sciences de la Terre (EOST) Université de Strasbourg (UNISTRA)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Heap, Michael J. Kennedy, Ben M. Farquharson, Jamie I. Ashworth, James Mayer, Klaus Letham-Brake, Mark Reuschlé, Thierry Gilg, H. Albert Scheu, Bettina Lavallée, Yan Siratovich, Paul Cole, Jim Jolly, Arthur D. Baud, Patrick Dingwell, Donald B. |
author_facet |
Heap, Michael J. Kennedy, Ben M. Farquharson, Jamie I. Ashworth, James Mayer, Klaus Letham-Brake, Mark Reuschlé, Thierry Gilg, H. Albert Scheu, Bettina Lavallée, Yan Siratovich, Paul Cole, Jim Jolly, Arthur D. Baud, Patrick Dingwell, Donald B. |
author_sort |
Heap, Michael J. |
title |
A multidisciplinary approach to quantify the permeability of the Whakaari/White Island volcanic hydrothermal system (Taupo Volcanic Zone, New Zealand) |
title_short |
A multidisciplinary approach to quantify the permeability of the Whakaari/White Island volcanic hydrothermal system (Taupo Volcanic Zone, New Zealand) |
title_full |
A multidisciplinary approach to quantify the permeability of the Whakaari/White Island volcanic hydrothermal system (Taupo Volcanic Zone, New Zealand) |
title_fullStr |
A multidisciplinary approach to quantify the permeability of the Whakaari/White Island volcanic hydrothermal system (Taupo Volcanic Zone, New Zealand) |
title_full_unstemmed |
A multidisciplinary approach to quantify the permeability of the Whakaari/White Island volcanic hydrothermal system (Taupo Volcanic Zone, New Zealand) |
title_sort |
multidisciplinary approach to quantify the permeability of the whakaari/white island volcanic hydrothermal system (taupo volcanic zone, new zealand) |
publisher |
HAL CCSD |
publishDate |
2017 |
url |
https://hal-insu.archives-ouvertes.fr/insu-03707914 https://doi.org/10.1016/j.jvolgeores.2016.12.004 |
long_lat |
ENVELOPE(167.167,167.167,-77.533,-77.533) ENVELOPE(48.583,48.583,-66.733,-66.733) |
geographic |
Main Crater New Zealand White Island |
geographic_facet |
Main Crater New Zealand White Island |
genre |
White Island |
genre_facet |
White Island |
op_source |
Journal of Volcanology and Geothermal Research https://hal-insu.archives-ouvertes.fr/insu-03707914 Journal of Volcanology and Geothermal Research, 2017, 332, pp.88-108. ⟨10.1016/j.jvolgeores.2016.12.004⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jvolgeores.2016.12.004 insu-03707914 https://hal-insu.archives-ouvertes.fr/insu-03707914 BIBCODE: 2017JVGR.332.88H doi:10.1016/j.jvolgeores.2016.12.004 |
op_doi |
https://doi.org/10.1016/j.jvolgeores.2016.12.004 |
container_title |
Journal of Volcanology and Geothermal Research |
container_volume |
332 |
container_start_page |
88 |
op_container_end_page |
108 |
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1766234019322658816 |