The Santa Filomena meteorite shower: Trajectory, classification, and opaque phases as indicators of metamorphic conditions

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dc.contributor.authorTosi, Amanda
dc.contributor.authorZucolotto, Maria Elizabeth
dc.contributor.authorAndrade, Diana Paula
dc.contributor.authorWinter, Othon Cabo [UNESP]
dc.contributor.authorMourão, Daniela Cardozo [UNESP]
dc.contributor.authorSfair, Rafael [UNESP]
dc.contributor.authorZiegler, Karen
dc.contributor.authorPerez, Pablo Daniel
dc.contributor.authorSuarez, Sergio
dc.contributor.authorOrnellas, Iara Deniz
dc.contributor.authorZurita, Marcelo
dc.contributor.authorMendes, Julio Cezar
dc.contributor.authorKellner, Alexander Wilhelm
dc.contributor.authorWolff, Wania
dc.contributor.institutionUniversidade Federal do Rio de Janeiro (UFRJ)
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionEberhard Karls Universität Tübingen
dc.contributor.institutionUniversity of New Mexico
dc.contributor.institutionCentro Atomico Bariloche (CONICET)
dc.contributor.institutionBrazilian Meteor Observation Network
dc.date.accessioned2023-07-29T16:11:05Z
dc.date.available2023-07-29T16:11:05Z
dc.date.issued2023-05-01
dc.description.abstractOn August 19, 2020, at 13:18—UTC, a meteor event ended as a meteorite shower in Santa Filomena, a city in the Pernambuco State, northeast Brazil. The heliocentric orbital parameters resulting from images by cameras of the weather broadcasting system were semimajor axis a = 2.1 ± 0.1 au, eccentricity e = 0.55 ± 0.03, and inclination i = 0.15o ± 0.05. The data identified the body as an Apollo object, an Earth-crossing object with a pericenter interior to the Earth's orbit. The chemical, mineralogical, and petrological evaluations, as well as the physical analysis, followed several traditional techniques. The meteorite was identified as a H5-6 S4 W0 ordinary chondrite genomict breccia. The large amount of metal in the meteorite made a metallographic evaluation based on the opaque phases possible. The monocrystalline kamacite crystals suggest a higher petrological type and the distorted Neumann lines imply at least two different shock events. The absence of the plessite phase shows that the meteorite did not reach the highest shock levels S5 and S6. The well-defined polycrystalline taenite is indicative of petrologic types 4 and 5 due to the conserved internal tetrataenite rim at the boundaries. The presence of polycrystalline taenites and the characteristics of the Agrell Effect suggest that the Santa Filomena meteorite did not reheat above 700°C. The absence of martensite confirms reheating temperatures <800°C and a slow cooling rate. The Ni contents and sizes of the zoned taenite particles indicate a slow cooling rate ranging from 1 to 10 K Myr−1.en
dc.description.affiliationLABSONDA/IGEO/UFRJ Instituto de Geociências Universidade Federal do Rio de Janeiro, Av. Athos da Silveira Ramos, 274, Cidade Universitária, RJ
dc.description.affiliationLABET/MN/UFRJ Laboratório Extraterrestre Departamento de Geologia e Paleontologia Museu Nacional Universidade Federal do Rio de Janeiro Quinta da Boa Vista, São Cristóvão, RJ
dc.description.affiliationObservatório do Valongo Universidade Federal do Rio de Janeiro, RJ
dc.description.affiliationGrupo de Dinâmica orbital e Planetologia São Paulo State University—UNESP, Av. Ariberto Pereira da Cunha 333, Guaratinguetá, SP
dc.description.affiliationInstitut für Astronomie und Astrophysik Eberhard Karls Universität Tübingen, Auf der Morgenstelle 10
dc.description.affiliationInstitute of Meteoritics University of New Mexico
dc.description.affiliationDivisiones Atômicas Centro Atomico Bariloche (CONICET), Av. Bustillo, RN
dc.description.affiliationBRAMON Brazilian Meteor Observation Network, SP
dc.description.affiliationLaboratory of Systematics and Taphonomy of Fossil Vertebrates Department of Geology and Paleontology Museu Nacional Universidade Federal do Rio de Janeiro, RJ
dc.description.affiliationInstituto de Física Universidade Federal do Rio de Janeiro, RJ
dc.description.affiliationUnespGrupo de Dinâmica orbital e Planetologia São Paulo State University—UNESP, Av. Ariberto Pereira da Cunha 333, Guaratinguetá, SP
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ)
dc.description.sponsorshipIdCAPES: 23079.043307/2019-13
dc.description.sponsorshipIdFAPERJ: E-26/010/002675/2019
dc.format.extent621-642
dc.identifierhttp://dx.doi.org/10.1111/maps.13976
dc.identifier.citationMeteoritics and Planetary Science, v. 58, n. 5, p. 621-642, 2023.
dc.identifier.doi10.1111/maps.13976
dc.identifier.issn1086-9379
dc.identifier.scopus2-s2.0-85152466794
dc.identifier.urihttp://hdl.handle.net/11449/249858
dc.language.isoeng
dc.relation.ispartofMeteoritics and Planetary Science
dc.sourceScopus
dc.titleThe Santa Filomena meteorite shower: Trajectory, classification, and opaque phases as indicators of metamorphic conditionsen
dc.typeArtigo
unesp.author.orcid0000-0003-1080-964X[1]
unesp.author.orcid0000-0003-2896-1105[2]
unesp.author.orcid0000-0003-2940-5426[3]
unesp.author.orcid0000-0002-4901-3289[4]
unesp.author.orcid0000-0001-9555-8143[5]
unesp.author.orcid0000-0002-4939-013X[6]
unesp.author.orcid0000-0002-7221-0803[7]
unesp.author.orcid0000-0002-9388-1569[8]
unesp.author.orcid0000-0002-7081-9674[10]
unesp.author.orcid0000-0002-2184-4881[11]
unesp.author.orcid0000-0002-4332-8802[12]
unesp.author.orcid0000-0001-7174-9447[13]
unesp.author.orcid0000-0003-2489-8559[14]
unesp.departmentMatemática - FEGpt

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Guaratinguetá - FEG - Faculdade de Engenharia e Ciências