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dc.contributor.authorBryson, James F. J.es_ES
dc.contributor.authorHerrero-Albillos, Juliaes_ES
dc.contributor.authorKronast, Florianes_ES
dc.contributor.authorLaan, Gerrit van deres_ES
dc.contributor.authorHarrison, Richard J.-
dc.date.accessioned2015-08-20T11:54:05Z-
dc.date.available2015-08-20T11:54:05Z-
dc.date.issued2015-01-
dc.identifier.citationNature 517: 472-475 (2015)es_ES
dc.identifier.issn0028-0836-
dc.identifier.urihttp://hdl.handle.net/10261/121289-
dc.descriptionLetter.-- et al.es_ES
dc.description.abstractPalaeomagnetic measurements of meteorites suggest that, shortly after the birth of the Solar System, the molten metallic cores of many small planetary bodies convected vigorously and were capable of generating magnetic fields. Convection on these bodies is currently thought to have been thermally driven, implying that magnetic activity would have been short-lived. Here we report a time-series palaeomagnetic record derived from nanomagnetic imaging10 of the Imilac and Esquel pallasite meteorites, a group of meteorites consisting of centimetre-sized metallic and silicate phases. We find a history of long-lived magnetic activity on the pallasite parent body, capturing the decay and eventual shutdown of the magnetic field as core solidification completed. We demonstrate that magnetic activity driven by progressive solidification of an inner core is consistent with our measured magnetic field characteristics and cooling rates. Solidification-driven convection was probably common among small body cores, and, in contrast to thermally driven convection, will have led to a relatively late (hundreds of millions of years after accretion), long-lasting, intense and widespread epoch of magnetic activity among these bodies in the early Solar Systemes_ES
dc.description.sponsorshipThe research leading to these results has received funding from the European Research Council under the European Union’s Seventh Framework Programme (FP/2007-2013)/ERC grant agreement numbers 320750 and 312284, the Natural Environment Research Council, Fundación ARAID and the Spanish MINECO MAT2011-23791.es_ES
dc.language.isoenges_ES
dc.publisherNature Publishing Groupes_ES
dc.relationinfo:eu-repo/grantAgreement/EC/FP7/320750es_ES
dc.relationinfo:eu-repo/grantAgreement/EC/FP7/312284-
dc.rightsclosedAccesses_ES
dc.subjectMeteoriticses_ES
dc.subjectCore processeses_ES
dc.subjectEarly solar systemes_ES
dc.titleLong-lived magnetism from solidification-driven convection on the pallasite parent bodyes_ES
dc.typeartículoes_ES
dc.identifier.doi10.1038/nature14114-
dc.description.peerreviewedPeer reviewedes_ES
dc.relation.publisherversionhttp://dx.doi.org/10.1038/nature14114es_ES
dc.identifier.e-issn1476-4687-
dc.contributor.funderEuropean Research Counciles_ES
dc.contributor.funderEuropean Commissiones_ES
dc.contributor.funderNatural Environment Research Council (UK)es_ES
dc.contributor.funderMinisterio de Economía y Competitividad (España)es_ES
dc.contributor.funderARAID Foundationes_ES
dc.relation.csices_ES
dc.identifier.funderhttp://dx.doi.org/10.13039/501100000781es_ES
dc.identifier.funderhttp://dx.doi.org/10.13039/501100000780es_ES
dc.identifier.funderhttp://dx.doi.org/10.13039/501100000270es_ES
dc.identifier.funderhttp://dx.doi.org/10.13039/501100003329es_ES
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