Mostrar registro simples

dc.contributor.authorParés Casanova, Josep M.
dc.contributor.authorVernet Tarrago, Eva 
dc.contributor.authorCalvo Rathert, Manuel 
dc.contributor.authorSoler, Vicente
dc.contributor.authorBógalo Román, Mª Felicidad 
dc.contributor.authorÁlvaro, Ana
dc.date.accessioned2023-03-24T11:44:00Z
dc.date.available2023-03-24T11:44:00Z
dc.date.issued2022-07
dc.identifier.urihttp://hdl.handle.net/10259/7597
dc.description.abstractWe present initial rock magnetic results for both lava flows and lapilli produced by the 2021 eruption of the Cumbre Vieja, La Palma (Canary Islands). Samples were taken during the eruption to minimize early alteration and weathering of the rocks and tephra. Standard procedures included progressive alternating field and thermal demagnetization, hysteresis curves, thermomagnetic experiments, progressive acquisition of isothermal remanent magnetization (IRM), and First-Order Reversal Curves (FORCs). Overall, our observations, including low to medium unblocking temperatures, isothermal remanent magnetization to 1 Tesla, and the abundance of wasp-waist hysteresis loops, strongly suggest the presence of Ti-rich titanomagnetites as the main remanence carriers in both lava flows and lapilli, in addition to some hematite as well. Whereas the former has been directly seen (SEM), hematite is elusive with nonmagnetic-based methods. Rock magnetic data, on a Day plot, also reveal that the magnetic grain size tends to be larger in the lava flows than in the lapilli.en
dc.description.sponsorshipThis research was funded by Agencia Estatal de Investigación, Spain, grant no. PID2019-105796GB-00/AEI/10.13039/501100011033.en
dc.format.mimetypeapplication/pdf
dc.language.isoenges
dc.publisherMDPIen
dc.relation.ispartofGeosciences. 2022, V. 12, n. 7, 271en
dc.rightsAtribución 4.0 Internacional*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectRock magnetismen
dc.subjectCanary Islandsen
dc.subjectRecent volcanic eruptionen
dc.subjectLapillien
dc.subjectBasaltic lava flowen
dc.subject.otherFísicaes
dc.subject.otherPhysicsen
dc.subject.otherGeologíaes
dc.subject.otherGeologyen
dc.titleRock Magnetism of Lapilli and Lava Flows from Cumbre Vieja Volcano, 2021 Eruption (La Palma, Canary Islands): Initial Reportsen
dc.typeinfo:eu-repo/semantics/articlees
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses
dc.relation.publisherversionhttps://doi.org/10.3390/geosciences12070271es
dc.identifier.doi10.3390/geosciences12070271
dc.relation.projectIDinfo:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-105796 GB-I00/ES/LAS VARIACIONES DEL REGISTRO ARQUEOMAGNETICO PREHISTORICO EN LA PENINSULA IBERICA Y EL CAUCASO/es
dc.identifier.essn2076-3263
dc.journal.titleGeosciencesen
dc.volume.number12es
dc.issue.number7es
dc.type.hasVersioninfo:eu-repo/semantics/publishedVersiones


Arquivos deste item

Thumbnail

Este item aparece na(s) seguinte(s) coleção(s)

Mostrar registro simples