2026-06-17T23:41:36Zhttps://riubu.ubu.es/oai/requestoai:riubu.ubu.es:10259/111902026-01-09T01:05:31Zcom_10259.4_2560com_10259_5086com_10259_2604col_10259.4_2561
Repositorio Institucional de la Universidad de Burgos
author
Parés Casanova, Josep M.
author
Soler, Vicente
author
Bógalo Román, Mª Felicidad
author
Calvo Rathert, Manuel
author
Carrancho Alonso, Ángel
author
Vernet Tarrago, Eva
2026-01-08T13:08:31Z
2026-01-08T13:08:31Z
2025-08
0094-8276
https://hdl.handle.net/10259/11190
10.1029/2025GL116443
1944-8007
We report the results of a rockmagnetic study of tephra material produced by the Tajogaite volcano, in La Palma (Canary Islands), during 19 September through 13 December 2021. Our magnetic analysis reveals a change of rock magnetic properties through the eruption. Ti-magnetite particles are the main magnetic carrier in both lapilli and ash, and significant grain size changes are observed through the magnetic properties. Notably, we notice a progressive decrease in bulk magnetic susceptibility, largely due to the change in concentration of magnetite nanolite particles. Superparamagnetism is apparent in particular during the early stages of the volcanic activity, and the behavior is progressively masked upsection due to the abundance of Ti-magnetite SD and PSD particles. We hypothesize that the reported edifice collapse occurred on 25 September and a coeval, abrupt change of magnetic properties, are both related to the viscosity change of the magma feeding the volcano.
eng
Atribución 4.0 Internacional
Volcanism
Tajogaite 2021 eruption
Tephra
Rock magnetism
Nanolites
La Palma
Tephra Deposits of the Tajogaite Volcano, La Palma: Changes of Magnetic Properties Through the 2021 Eruption
info:eu-repo/semantics/article
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URL
https://riubu.ubu.es/bitstream/10259/11190/1/Pares-grl_2025.pdf
File
MD5
7d3fa00ed04f741e0d0028480c398b8d
2685403
application/pdf
Pares-grl_2025.pdf