High varability of interaction energy between volcanic particles: implications for deposit stability.
Landslides on the flanks of stratovolcanoes can significantly modify the structure of the volcano. Macroscopic factors that determine the stability of volcanic deposits are well understood, but the microscopic interactions between particles and their impact on deposit cohesion remain poorly understo...
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Online Access: | https://hdl.handle.net/10953/1523 https://doi.org/10.1007/s11069-023-05979-y |
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ftunivjaen:oai:ruja.ujaen.es:10953/1523 2024-02-11T10:03:19+01:00 High varability of interaction energy between volcanic particles: implications for deposit stability. Ontiveros Ortega, Alfonso Calero, Julio Moleón Baca, Jose Alberto 2023-10-27 application/pdf https://hdl.handle.net/10953/1523 https://doi.org/10.1007/s11069-023-05979-y eng eng Springer Nature Natural Hazards; 2023, 117:3103-3122 Ontiveros Ortega, Alfonso 0921-030X doi:10.1007/s11069-023-05979-y https://hdl.handle.net/10953/1523 CC0 1.0 Universal http://creativecommons.org/publicdomain/zero/1.0/ info:eu-repo/semantics/openAccess zeta potential surface free energy Interaction energy colloidal particles 5 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2023 ftunivjaen https://doi.org/10.1007/s11069-023-05979-y 2024-01-24T00:21:39Z Landslides on the flanks of stratovolcanoes can significantly modify the structure of the volcano. Macroscopic factors that determine the stability of volcanic deposits are well understood, but the microscopic interactions between particles and their impact on deposit cohesion remain poorly understood. Deposit cohesion is related to the energy of interaction between particles, and its calculation depends on the surficial properties of the eruptive materials. The purpose of this study was to perform a preliminary comparative analysis of the surficial properties of volcanic materials from various tectonic settings, including electrical (zeta potential) and thermodynamic (surface free energy) components and to calculate the total interaction energy between particles under different environmental conditions. We analyzed samples of eruptive materials obtained from volcanic flows characteristic of six active volcanoes (El Hierro, Pico Do Fogo, Vulcano, Stromboli, Mt. Etna, and Deception Island). The results show that deposit cohesion varies among volcanoes and changes drastically with the pH of the medium. Among the volcanic systems investigated, El Hierro (pH = 3) has the most cohesive materials, while Mt. Etna (pH = 8) has the least cohesive materials. Our results suggest that microscopic electrical and thermodynamic properties play a role in the stability of volcanic deposits, and confirm the need for a greater research focus in this area. Universidad de Jaén/CBUA. This work was partially funded by the Spanish MINECO Project FEMALE, PID2019-106260GB-I00. Funding for open access charge: Universidad de Jaén. Article in Journal/Newspaper Deception Island RUJA - Repositorio de la Universidad de Jaén Deception Island ENVELOPE(-60.633,-60.633,-62.950,-62.950) Fogo ENVELOPE(-54.281,-54.281,49.717,49.717) Natural Hazards 117 3 3103 3122 |
institution |
Open Polar |
collection |
RUJA - Repositorio de la Universidad de Jaén |
op_collection_id |
ftunivjaen |
language |
English |
topic |
zeta potential surface free energy Interaction energy colloidal particles 5 |
spellingShingle |
zeta potential surface free energy Interaction energy colloidal particles 5 Ontiveros Ortega, Alfonso Calero, Julio Moleón Baca, Jose Alberto High varability of interaction energy between volcanic particles: implications for deposit stability. |
topic_facet |
zeta potential surface free energy Interaction energy colloidal particles 5 |
description |
Landslides on the flanks of stratovolcanoes can significantly modify the structure of the volcano. Macroscopic factors that determine the stability of volcanic deposits are well understood, but the microscopic interactions between particles and their impact on deposit cohesion remain poorly understood. Deposit cohesion is related to the energy of interaction between particles, and its calculation depends on the surficial properties of the eruptive materials. The purpose of this study was to perform a preliminary comparative analysis of the surficial properties of volcanic materials from various tectonic settings, including electrical (zeta potential) and thermodynamic (surface free energy) components and to calculate the total interaction energy between particles under different environmental conditions. We analyzed samples of eruptive materials obtained from volcanic flows characteristic of six active volcanoes (El Hierro, Pico Do Fogo, Vulcano, Stromboli, Mt. Etna, and Deception Island). The results show that deposit cohesion varies among volcanoes and changes drastically with the pH of the medium. Among the volcanic systems investigated, El Hierro (pH = 3) has the most cohesive materials, while Mt. Etna (pH = 8) has the least cohesive materials. Our results suggest that microscopic electrical and thermodynamic properties play a role in the stability of volcanic deposits, and confirm the need for a greater research focus in this area. Universidad de Jaén/CBUA. This work was partially funded by the Spanish MINECO Project FEMALE, PID2019-106260GB-I00. Funding for open access charge: Universidad de Jaén. |
format |
Article in Journal/Newspaper |
author |
Ontiveros Ortega, Alfonso Calero, Julio Moleón Baca, Jose Alberto |
author_facet |
Ontiveros Ortega, Alfonso Calero, Julio Moleón Baca, Jose Alberto |
author_sort |
Ontiveros Ortega, Alfonso |
title |
High varability of interaction energy between volcanic particles: implications for deposit stability. |
title_short |
High varability of interaction energy between volcanic particles: implications for deposit stability. |
title_full |
High varability of interaction energy between volcanic particles: implications for deposit stability. |
title_fullStr |
High varability of interaction energy between volcanic particles: implications for deposit stability. |
title_full_unstemmed |
High varability of interaction energy between volcanic particles: implications for deposit stability. |
title_sort |
high varability of interaction energy between volcanic particles: implications for deposit stability. |
publisher |
Springer Nature |
publishDate |
2023 |
url |
https://hdl.handle.net/10953/1523 https://doi.org/10.1007/s11069-023-05979-y |
long_lat |
ENVELOPE(-60.633,-60.633,-62.950,-62.950) ENVELOPE(-54.281,-54.281,49.717,49.717) |
geographic |
Deception Island Fogo |
geographic_facet |
Deception Island Fogo |
genre |
Deception Island |
genre_facet |
Deception Island |
op_relation |
Natural Hazards; 2023, 117:3103-3122 Ontiveros Ortega, Alfonso 0921-030X doi:10.1007/s11069-023-05979-y https://hdl.handle.net/10953/1523 |
op_rights |
CC0 1.0 Universal http://creativecommons.org/publicdomain/zero/1.0/ info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1007/s11069-023-05979-y |
container_title |
Natural Hazards |
container_volume |
117 |
container_issue |
3 |
container_start_page |
3103 |
op_container_end_page |
3122 |
_version_ |
1790599534064173056 |