Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/9124
DC FieldValueLanguage
dc.contributor.authorallVillasante-Marcos, V.en
dc.contributor.authorallPavón-Carrasco, F. J.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italiaen
dc.date.accessioned2014-10-14T12:27:35Zen
dc.date.available2014-10-14T12:27:35Zen
dc.date.issued2014-09-05en
dc.identifier.urihttp://hdl.handle.net/2122/9124en
dc.description.abstractA paleomagnetic study has been carried out in 29 cores drilled at 6 different sites from the volcanic products of Lomo Negro eruption (El Hierro, Canary Islands, Spain). Systematic thermal and alternating field demagnetization of the samples’ NRM (Natural Remanent Magnetization) revealed a northward, stable paleomagnetic direction similar in all the samples. Rock magnetic experiments indicate that this paleomagnetic component is carried by a mixture of high-Ti and low-Ti titanomagnetite crystals typical of basaltic lithologies that have experienced a significant degree of oxyexsolution during subaerial cooling. The well constrained paleomagnetic direction of Lomo Negro lavas was used to perform a paleomagnetic dating of the volcanic event, using the SHA.DIF.14k global geomagnetic model restricted for the last three thousand years. It can be unambiguously concluded that Lomo Negro eruption occurred well before the previously proposed date of 1793 AD, with three different age ranges being statistically possible during the last 3 ka: 115 BC-7 AD, 410-626 AD, and 1499-1602 AD. The calibration of a previously published non-calibrated 14C dating suggests a XVI c. date for Lomo Negro eruption. This conclusion leaves open the possibility that the seismic crisis occurred at El Hierro in 1793 AD was related to an intrusive magmatic event that either did not reach the surface or either culminated in an unregistered submarine eruption similar to the one occurred in 2011-2012 at the southern off-shore ridge of the island.en
dc.language.isoEnglishen
dc.relation.ispartofGeophysical Journal Internationalen
dc.relation.ispartofseries/199 (2014)en
dc.subjectLomo Negro eruptionen
dc.subjectEl Hierroen
dc.subjectPaleomagnetic datingen
dc.subjectPaleomagnetismen
dc.subjectSecular variationen
dc.titlePaleomagnetic constraints on the age of Lomo Negro volcanic eruption (El Hierro, Canary Islands)en
dc.typearticleen
dc.description.statusPublisheden
dc.type.QualityControlPeer-revieweden
dc.description.pagenumber1497-1514en
dc.subject.INGV04. Solid Earth::04.05. Geomagnetism::04.05.02. Geomagnetic field variations and reversalsen
dc.subject.INGV04. Solid Earth::04.05. Geomagnetism::04.05.06. Paleomagnetismen
dc.subject.INGV04. Solid Earth::04.05. Geomagnetism::04.05.07. Rock magnetismen
dc.identifier.doi10.1093/gji/ggu346en
dc.description.obiettivoSpecifico1A. Geomagnetismo e Paleomagnetismoen
dc.description.journalTypeJCR Journalen
dc.description.fulltextrestricteden
dc.relation.issn0956-540Xen
dc.relation.eissn1365-246Xen
dc.contributor.authorVillasante-Marcos, V.en
dc.contributor.authorPavón-Carrasco, F. J.en
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italiaen
item.openairetypearticle-
item.cerifentitytypePublications-
item.languageiso639-1en-
item.grantfulltextrestricted-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.fulltextWith Fulltext-
crisitem.author.deptEcole et Observatoire des Sciences de la Terre, Université de Strasbourg, France-
crisitem.classification.parent04. Solid Earth-
crisitem.classification.parent04. Solid Earth-
crisitem.classification.parent04. Solid Earth-
crisitem.department.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
Appears in Collections:Article published / in press
Files in This Item:
File Description SizeFormat Existing users please Login
Villasante-Marcos_and_Pavon-Carrasco2014low.pdf3.77 MBAdobe PDF
Show simple item record

WEB OF SCIENCETM
Citations

10
checked on Feb 10, 2021

Page view(s) 20

320
checked on Mar 27, 2024

Download(s) 50

68
checked on Mar 27, 2024

Google ScholarTM

Check

Altmetric