Evidence for early Pliocene and late Miocene transgressions in southern Patagonia (Argentina): 87Sr/86Sr ages of the pectinid "Chlamys" actinodes (Sowerby)

Numerical ages based on 87Sr/86Sr dating of calcitic shells belonging to the pectinid "Chlamys" actinodes (Sowerby) document the only late Miocene (Tortonian) sea flooding event in the Austral Basin at Cabo Buentiempo (8.95±0.82Ma, 2 s.e.), and provide evidence of the first documented earl...

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Autores principales: Del Río, C. J., Griffin, Miguel, McArthur, J. M., Martínez, S., Thirlwall, M.F.
Formato: Articulo
Lenguaje:Inglés
Publicado: 2013
Materias:
Geología
Ciencias Naturales
87Sr/86Sr
Argentina
Early Pliocene
Late Miocene
Patagonia
Tortonian
Zanclean
Tortoniano
Zancliense
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/85476
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-85476
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Geología
Ciencias Naturales
87Sr/86Sr
Argentina
Early Pliocene
Late Miocene
Patagonia
Tortonian
Zanclean
Tortoniano
Zancliense
spellingShingle Geología
Ciencias Naturales
87Sr/86Sr
Argentina
Early Pliocene
Late Miocene
Patagonia
Tortonian
Zanclean
Tortoniano
Zancliense
Del Río, C. J.
Griffin, Miguel
McArthur, J. M.
Martínez, S.
Thirlwall, M.F.
Evidence for early Pliocene and late Miocene transgressions in southern Patagonia (Argentina): 87Sr/86Sr ages of the pectinid "Chlamys" actinodes (Sowerby)
topic_facet Geología
Ciencias Naturales
87Sr/86Sr
Argentina
Early Pliocene
Late Miocene
Patagonia
Tortonian
Zanclean
Tortoniano
Zancliense
description Numerical ages based on 87Sr/86Sr dating of calcitic shells belonging to the pectinid "Chlamys" actinodes (Sowerby) document the only late Miocene (Tortonian) sea flooding event in the Austral Basin at Cabo Buentiempo (8.95±0.82Ma, 2 s.e.), and provide evidence of the first documented early Pliocene (Zanclean) transgression in Argentina recorded at Cañadón Darwin (5.15±0.18Ma, 2 s.e., Austral Basin) and at Terraces of Cerro Laciar (5.10±0.21Ma, 2 s.e.), southern San Jorge Basin). The sedimentary rocks deposited during the Tortonian are correlated with the youngest beds deposited by the "Entrerriense Sea" that covered northern Patagonia. The Zanclean marine episode is correlated with the long-term cycle represented in the Southern Hemisphere by the flooding events recorded in Cockburn and James Ross Islands (Antarctica) and in North-Central Chile.
format Articulo
Articulo
author Del Río, C. J.
Griffin, Miguel
McArthur, J. M.
Martínez, S.
Thirlwall, M.F.
author_facet Del Río, C. J.
Griffin, Miguel
McArthur, J. M.
Martínez, S.
Thirlwall, M.F.
author_sort Del Río, C. J.
title Evidence for early Pliocene and late Miocene transgressions in southern Patagonia (Argentina): 87Sr/86Sr ages of the pectinid "Chlamys" actinodes (Sowerby)
title_short Evidence for early Pliocene and late Miocene transgressions in southern Patagonia (Argentina): 87Sr/86Sr ages of the pectinid "Chlamys" actinodes (Sowerby)
title_full Evidence for early Pliocene and late Miocene transgressions in southern Patagonia (Argentina): 87Sr/86Sr ages of the pectinid "Chlamys" actinodes (Sowerby)
title_fullStr Evidence for early Pliocene and late Miocene transgressions in southern Patagonia (Argentina): 87Sr/86Sr ages of the pectinid "Chlamys" actinodes (Sowerby)
title_full_unstemmed Evidence for early Pliocene and late Miocene transgressions in southern Patagonia (Argentina): 87Sr/86Sr ages of the pectinid "Chlamys" actinodes (Sowerby)
title_sort evidence for early pliocene and late miocene transgressions in southern patagonia (argentina): 87sr/86sr ages of the pectinid "chlamys" actinodes (sowerby)
publishDate 2013
url http://sedici.unlp.edu.ar/handle/10915/85476
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