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dc.contributor.author
Scasso, Roberto Adrian
dc.contributor.author
McArthur, J. M.
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del Río, Claudia Julia
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Martinez, Sergio
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Thirwall, M. F.
dc.date.available
2021-07-27T14:49:08Z
dc.date.issued
2001-12
dc.identifier.citation
Scasso, Roberto Adrian; McArthur, J. M.; del Río, Claudia Julia; Martinez, Sergio; Thirwall, M. F.; 87Sr/86Sr late miocene age of fossil molluscs in the 'entrerriense' of the Valdés Peninsula (Chubut, Argentina); Pergamon-Elsevier Science Ltd; Journal of South American Earth Sciences; 14; 3; 12-2001; 319-329
dc.identifier.issn
0895-9811
dc.identifier.uri
http://hdl.handle.net/11336/137055
dc.description.abstract
87Sr/86Sr analysis on calcitic shells of pectinids (Chlamys actinodes and Chesapecten crassus) and oysters (Ostrea sp.) shows that the 'Entrerriense' sequence belonging to the Puerto Madryn Formation, Valdés Península (Chubut), was deposited at about 10.0 ± 0.3 Ma. Thus, a middle Tortonian age is assigned to the sequence. Within the sequence, the pectinids better retain their original 87Sr/86Sr ratio, whilst the oysters are altered and yield older-than-real ages. The latter is the result of greater susceptibility to interaction with diagenetic fluids bearing Sr derived from the alteration of tuffaceous materials and volcanic rocks of intermediate and basic composition.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Pergamon-Elsevier Science Ltd
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
COOL WATER CARBONATES
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COQUINAS
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ENTRERRIENSE
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LATE MIOCENE
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PATAGONIA; 87S./86SR
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Geología
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Ciencias de la Tierra y relacionadas con el Medio Ambiente
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CIENCIAS NATURALES Y EXACTAS
dc.title
87Sr/86Sr late miocene age of fossil molluscs in the 'entrerriense' of the Valdés Peninsula (Chubut, Argentina)
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2021-07-12T13:32:29Z
dc.journal.volume
14
dc.journal.number
3
dc.journal.pagination
319-329
dc.journal.pais
Estados Unidos
dc.description.fil
Fil: Scasso, Roberto Adrian. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Geología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
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Fil: McArthur, J. M.. Colegio Universitario de Londres; Reino Unido
dc.description.fil
Fil: del Río, Claudia Julia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina
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Fil: Martinez, Sergio. Universidad de la República; Uruguay
dc.description.fil
Fil: Thirwall, M. F.. University College London; Estados Unidos
dc.journal.title
Journal of South American Earth Sciences
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S0895981101000323
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.1016/S0895-9811(01)00032-3
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