Grenvillian massif-type anorthosites in the Sierras Pampeanas

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dc.contributor.authorCasquet Martín, César
dc.contributor.authorPankhurst, R.J.
dc.contributor.authorRapela, Carlos W.
dc.contributor.authorGalindo Francisco, María Del Carmen
dc.contributor.authorDahlquist, Juan A.
dc.contributor.authorBaldo, Edgardo G.
dc.contributor.authorSaavedra, Julio
dc.contributor.authorGonzález Casado, José Manuel
dc.contributor.authorFanning, C.M.
dc.date.accessioned2023-06-20T09:26:36Z
dc.date.available2023-06-20T09:26:36Z
dc.date.issued2004-01
dc.description.abstractWe report the discovery of massif-type anorthosites in the Andean basement of the Western Sierras Pampeanas of Argentina. U–Pb zircon dating (by sensitive high-resolution ion microprobe) of a cogenetic gabbronorite dyke yields ages of 1070 ± 41 Ma for igneous emplacement and 431 ± 40 Ma for metamorphism. These anorthosites are petrologically and geochemically comparable with those of the Grenville province of Laurentia. Palaeogeographical reconstructions of Rodinia at 1.0–1.1 Ga suggest that the Sierras Pampeanas anorthosites were part of a large anorthosite province in the late Mesoproterozoic.
dc.description.departmentDepto. de Mineralogía y Petrología
dc.description.facultyFac. de Ciencias Geológicas
dc.description.refereedTRUE
dc.description.statuspub
dc.eprint.idhttps://eprints.ucm.es/id/eprint/12169
dc.identifier.doi10.1144/0016-764904-100
dc.identifier.issn0016-7649
dc.identifier.officialurlhttp://www.geolsoc.org.uk/gsl/op/ed%3C/publications/journals
dc.identifier.urihttps://hdl.handle.net/20.500.14352/49546
dc.journal.titleJournal of the Geological Society
dc.language.isoeng
dc.page.final12
dc.page.initial9
dc.publisherGeological Society of London.
dc.rights.accessRightsopen access
dc.subject.cdu550.4(82)
dc.subject.keywordSierras Pampeanas
dc.subject.keywordArgentina
dc.subject.keywordNeoproterozoic
dc.subject.keywordRodinia
dc.subject.keywordSHRIMP data
dc.subject.keywordAnorthosites
dc.subject.ucmGeoquímica
dc.subject.unesco2503 Geoquímica
dc.titleGrenvillian massif-type anorthosites in the Sierras Pampeanas
dc.typejournal article
dc.volume.number162
dspace.entity.typePublication
relation.isAuthorOfPublicationa4fea134-2fb2-4157-9dd1-a3d6002ba005
relation.isAuthorOfPublicationf2fb71b6-b7fd-4fc6-bf39-d4de3ba5a67c
relation.isAuthorOfPublication.latestForDiscoverya4fea134-2fb2-4157-9dd1-a3d6002ba005
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