New constraints on the Jurassic-Cretaceous boundary in the High Andes using high-precision U-Pb data

The Jurassic-Cretaceous (J-K) boundary is poorly constrained, and is the only Phanerozoic system boundary that lacks an internationally accepted reference stratigraphic section (GSSP). Precise radio-isotopic U-Pb data are unavailable for the earliest stage of the Cretaceous- the Berriasian. The age...

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Detalles Bibliográficos
Autores principales:	Vennari, V.V., Lescano, M., Naipauer, M., Aguirre-Urreta, B., Concheyro, A., Schaltegger, U., Armstrong, R., Pimentel, M., Ramos, V.A.
Formato:	JOUR
Materias:	Ammonites Nannofossils U-Pb CA-ID-TIMS U-Pb SHRIMP Western Gondwana
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_1342937X_v26_n1_p374_Vennari
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

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