87Sr/86Sr late miocene age of fossil molluscs in the 'entrerriense' of the Valdés Peninsula (Chubut, Argentina)

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...

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Detalles Bibliográficos
Autores principales:	Scasso, R.A., McArthur, J.M., Del Río, C.J., Martínez, S., Thirlwall, M.F.
Formato:	JOUR
Materias:	Cool water carbonates Coquinas Entrerriense Late miocene Patagonia; 87S./86Sr argon-argon dating geochronology Miocene Argentina
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_08959811_v14_n3_p319_Scasso
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

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