High resolution isotopic ages for the early Miocene "Patagoniense" transgression in Southwest Patagonia: Stratigraphic implications

The classical marine Patagoniense succession at Lago Argentino, southwestern Patagonia (Argentina), known as Estancia 25 de Mayo Formation, was dated by radiometric U-Pb on zircon grains from pyroclastic rocks and 87Sr/ 86Sr ratio on calcitic oyster shells. U-Pb data yielded an age of 19.14 Ma for t...

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Detalles Bibliográficos
Autores principales:	Cuitiño, J.I., Pimentel, M.M., Ventura Santos, R., Scasso, R.A.
Formato:	JOUR
Materias:	Argentina Austral basin Geochronology Miocene Patagonia Sr stratigraphy Transgression U-Pb ages chemostratigraphy chronostratigraphy geochronology isotopic analysis resolution strontium isotope transgression uranium-lead dating Ostreidae
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_08959811_v38_n_p110_Cuitino
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

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