A Neoproterozoic age for the chromitite and gabbro of the Tapo ultramafic Massif, Eastern Cordillera, Central Peru and its tectonic implications

Descripción del Articulo

pp. 429-437
Detalles Bibliográficos
Autores: Tassinari, Colombo Celso Gaeta, Castroviejo Bolibar, Ricardo, Rodrigues, José Feliciano, Acosta Ale, Jorge Gilberto, Pereira, Eurico
Formato: artículo
Fecha de Publicación:2011
Institución:Instituto Geológico, Minero y Metalúrgico
Repositorio:INGEMMET-Institucional
Lenguaje:inglés
OAI Identifier:oai:repositorio.ingemmet.gob.pe:20.500.12544/626
Enlace del recurso:https://hdl.handle.net/20.500.12544/626
https://doi.org/10.1016/j.jsames.2011.03.008
Nivel de acceso:acceso abierto
Materia:Anfibol
Cromita
Datación K-Ar
Datación Sm-Nd
Gabro
Geocronología
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dc.title.es_PE.fl_str_mv A Neoproterozoic age for the chromitite and gabbro of the Tapo ultramafic Massif, Eastern Cordillera, Central Peru and its tectonic implications
title A Neoproterozoic age for the chromitite and gabbro of the Tapo ultramafic Massif, Eastern Cordillera, Central Peru and its tectonic implications
spellingShingle A Neoproterozoic age for the chromitite and gabbro of the Tapo ultramafic Massif, Eastern Cordillera, Central Peru and its tectonic implications
Tassinari, Colombo Celso Gaeta
Anfibol
Cromita
Datación K-Ar
Datación Sm-Nd
Gabro
Geocronología
title_short A Neoproterozoic age for the chromitite and gabbro of the Tapo ultramafic Massif, Eastern Cordillera, Central Peru and its tectonic implications
title_full A Neoproterozoic age for the chromitite and gabbro of the Tapo ultramafic Massif, Eastern Cordillera, Central Peru and its tectonic implications
title_fullStr A Neoproterozoic age for the chromitite and gabbro of the Tapo ultramafic Massif, Eastern Cordillera, Central Peru and its tectonic implications
title_full_unstemmed A Neoproterozoic age for the chromitite and gabbro of the Tapo ultramafic Massif, Eastern Cordillera, Central Peru and its tectonic implications
title_sort A Neoproterozoic age for the chromitite and gabbro of the Tapo ultramafic Massif, Eastern Cordillera, Central Peru and its tectonic implications
author Tassinari, Colombo Celso Gaeta
author_facet Tassinari, Colombo Celso Gaeta
Castroviejo Bolibar, Ricardo
Rodrigues, José Feliciano
Acosta Ale, Jorge Gilberto
Pereira, Eurico
author_role author
author2 Castroviejo Bolibar, Ricardo
Rodrigues, José Feliciano
Acosta Ale, Jorge Gilberto
Pereira, Eurico
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Tassinari, Colombo Celso Gaeta
Castroviejo Bolibar, Ricardo
Rodrigues, José Feliciano
Acosta Ale, Jorge Gilberto
Pereira, Eurico
dc.subject.es_PE.fl_str_mv Anfibol
Cromita
Datación K-Ar
Datación Sm-Nd
Gabro
Geocronología
topic Anfibol
Cromita
Datación K-Ar
Datación Sm-Nd
Gabro
Geocronología
description pp. 429-437
publishDate 2011
dc.date.accessioned.none.fl_str_mv 2017-10-16T22:41:40Z
dc.date.available.none.fl_str_mv 2017-10-16T22:41:40Z
dc.date.issued.fl_str_mv 2011-12
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dc.identifier.citation.es_PE.fl_str_mv Tassinari, C. C. G.; Castroviejo, R.; Rodrigues, J. F.; Acosta, J., & Pereira, E. (2011) - A Neoproterozoic age for the chromitite and gabbro of the Tapo ultramafic Massif, Eastern Cordillera, Central Peru and its tectonic implications. Journal of South American Earth Sciences, 32(4), 429–437. Doi: 10.1016/j.jsames.2011.03.008
dc.identifier.uri.none.fl_str_mv https://hdl.handle.net/20.500.12544/626
dc.identifier.doi.none.fl_str_mv https://doi.org/10.1016/j.jsames.2011.03.008
dc.identifier.journal.es_PE.fl_str_mv Journal of South American Earth Sciences
dc.identifier.bibliographicCitation.es_PE.fl_str_mv Journal of South American Earth Sciences, vol. 32, n° 4, 2011.
identifier_str_mv Tassinari, C. C. G.; Castroviejo, R.; Rodrigues, J. F.; Acosta, J., & Pereira, E. (2011) - A Neoproterozoic age for the chromitite and gabbro of the Tapo ultramafic Massif, Eastern Cordillera, Central Peru and its tectonic implications. Journal of South American Earth Sciences, 32(4), 429–437. Doi: 10.1016/j.jsames.2011.03.008
Journal of South American Earth Sciences
Journal of South American Earth Sciences, vol. 32, n° 4, 2011.
url https://hdl.handle.net/20.500.12544/626
https://doi.org/10.1016/j.jsames.2011.03.008
dc.language.iso.es_PE.fl_str_mv eng
language eng
dc.relation.ispartof.none.fl_str_mv urn:issn:0895-9811
dc.rights.es_PE.fl_str_mv info:eu-repo/semantics/openAccess
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eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.format.es_PE.fl_str_mv application/pdf
dc.coverage.spatial.es_PE.fl_str_mv Andes
Cordillera Oriental
Tapo
Junín
Perú
dc.coverage.temporal.none.fl_str_mv Neoproterozoico
dc.publisher.es_PE.fl_str_mv Elsevier
dc.publisher.country.es_PE.fl_str_mv NL
dc.source.es_PE.fl_str_mv Repositorio Institucional INGEMMET
Instituto Geológico, Minero y Metalúrgico – INGEMMET
dc.source.none.fl_str_mv reponame:INGEMMET-Institucional
instname:Instituto Geológico, Minero y Metalúrgico
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instacron_str INGEMMET
institution INGEMMET
reponame_str INGEMMET-Institucional
collection INGEMMET-Institucional
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spelling Tassinari, Colombo Celso GaetaCastroviejo Bolibar, RicardoRodrigues, José FelicianoAcosta Ale, Jorge GilbertoPereira, EuricoAndesCordillera OrientalTapoJunínPerúNeoproterozoico2017-10-16T22:41:40Z2017-10-16T22:41:40Z2011-12Tassinari, C. C. G.; Castroviejo, R.; Rodrigues, J. F.; Acosta, J., & Pereira, E. (2011) - A Neoproterozoic age for the chromitite and gabbro of the Tapo ultramafic Massif, Eastern Cordillera, Central Peru and its tectonic implications. Journal of South American Earth Sciences, 32(4), 429–437. Doi: 10.1016/j.jsames.2011.03.008https://hdl.handle.net/20.500.12544/626https://doi.org/10.1016/j.jsames.2011.03.008Journal of South American Earth SciencesJournal of South American Earth Sciences, vol. 32, n° 4, 2011.pp. 429-437The ultramafic–mafic rocks of the Tapo Complex are exposed in the Eastern Cordillera of the Central Peruvian Andes. This complex is composed of serpentinised peridotites and metabasites with some podiform chromitite lenses and chromite disseminations and overlies the sandstones, conglomerates, and tuffs of the Carboniferous Ambo Group. The metagabbros and amphibolites show a tholeiitic affiliation and a flat REE spider diagram, with a slight LREE depletion and a positive Eu anomaly suggesting magmatic accumulation of plagioclase, in an ocean ridge or ocean island environment. Sm–Nd isotopic analyses were performed on chromite as well as on whole rock from the gabbro. All samples yielded an Sm–Nd isochrone age of 718 ± 47 Ma with an initial 143Nd/144Nd of 0.51213 ± 0.00005. The ¿Nd (718 Ma) values calculated for both chromite and gabbro are in close agreement, around 8.0, implying that they were formed at the same time from the same mantelic magma source. Furthermore a K–Ar age on amphibole of 448 ± 26 Ma was obtained, interpreted as the cooling age of a younger orogenic event. These rocks represent slices of oceanic crust (from a dismembered ophiolitic complex), metamorphosed and later overthrust on upper Palaeozoic continental formations.Peer reviewedapplication/pdfengElsevierNLurn:issn:0895-9811info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-nd/4.0/Repositorio Institucional INGEMMETInstituto Geológico, Minero y Metalúrgico – INGEMMETreponame:INGEMMET-Institucionalinstname:Instituto Geológico, Minero y Metalúrgicoinstacron:INGEMMETAnfibolCromitaDatación K-ArDatación Sm-NdGabroGeocronologíaA Neoproterozoic age for the chromitite and gabbro of the Tapo ultramafic Massif, Eastern Cordillera, Central Peru and its tectonic implicationsinfo:eu-repo/semantics/articleGeocienciasLICENSElicense.txtlicense.txttext/plain; charset=utf-81567https://repositorio.ingemmet.gob.pe/bitstream/20.500.12544/626/2/license.txtecccc10c448afdeacc04912e07a3ed65MD52THUMBNAILTassinari-A_Neoproterozoic_age_for_the_chromitite.pdf.jpgTassinari-A_Neoproterozoic_age_for_the_chromitite.pdf.jpgGenerated Thumbnailimage/jpeg26866https://repositorio.ingemmet.gob.pe/bitstream/20.500.12544/626/4/Tassinari-A_Neoproterozoic_age_for_the_chromitite.pdf.jpg6bf5b5f7de7696d4d0f3aecdd54f1ba0MD54Tassinari-A_Neoproterozoic_age_for_the_chromitite-Version-OA.pdf.jpgTassinari-A_Neoproterozoic_age_for_the_chromitite-Version-OA.pdf.jpgGenerated Thumbnailimage/jpeg4906https://repositorio.ingemmet.gob.pe/bitstream/20.500.12544/626/7/Tassinari-A_Neoproterozoic_age_for_the_chromitite-Version-OA.pdf.jpgc3376077d66426c6a3c7fc75258dde37MD57TEXTTassinari-A_Neoproterozoic_age_for_the_chromitite.pdf.txtTassinari-A_Neoproterozoic_age_for_the_chromitite.pdf.txtExtracted texttext/plain43694https://repositorio.ingemmet.gob.pe/bitstream/20.500.12544/626/3/Tassinari-A_Neoproterozoic_age_for_the_chromitite.pdf.txt7e1e5ece3e35ed00c7c5966a5171de41MD53Tassinari-A_Neoproterozoic_age_for_the_chromitite-Version-OA.pdf.txtTassinari-A_Neoproterozoic_age_for_the_chromitite-Version-OA.pdf.txtExtracted texttext/plain43724https://repositorio.ingemmet.gob.pe/bitstream/20.500.12544/626/6/Tassinari-A_Neoproterozoic_age_for_the_chromitite-Version-OA.pdf.txt95bf1cfb52d9e1e0973976330a4f7ea4MD56ORIGINALTassinari-A_Neoproterozoic_age_for_the_chromitite-Version-OA.pdfTassinari-A_Neoproterozoic_age_for_the_chromitite-Version-OA.pdfapplication/pdf2555313https://repositorio.ingemmet.gob.pe/bitstream/20.500.12544/626/5/Tassinari-A_Neoproterozoic_age_for_the_chromitite-Version-OA.pdf221520ee7d91ba656317c1ccd52a3ad2MD5520.500.12544/626oai:repositorio.ingemmet.gob.pe:20.500.12544/6262019-06-13 16:26:01.332Repositorio Institucional INGEMMETrepositorio@ingemmet.gob.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
score 13.959468
A Neoproterozoic age for the chromitite and gabbro of the Tapo ultramafic Massif, Eastern Cordillera, Central Peru and its tectonic implications
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