RT info:eu-repo/semantics/article
T1 Tephra Deposits of the Tajogaite Volcano, La Palma: Changes of Magnetic Properties Through the 2021 Eruption
A1 Parés Casanova, Josep M.
A1 Soler, Vicente
A1 Bógalo Román, Mª Felicidad
A1 Calvo Rathert, Manuel
A1 Carrancho Alonso, Ángel
A1 Vernet Tarrago, Eva
K1 Volcanism
K1 La Palma
K1 Tajogaite 2021 eruption
K1 Tephra
K1 Rock magnetism
K1 Nanolites
K1 Rocas eruptivas
K1 Igneous rocks
K1 Magnetismo
K1 Magnetism
AB 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.
PB Wiley
SN 0094-8276
YR 2025
FD 2025-08
LK https://hdl.handle.net/10259/11190
UL https://hdl.handle.net/10259/11190
LA eng
DS Repositorio Institucional de la Universidad de Burgos
RD 28-may-2026