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

• Published in: Journal of South American Earth Sciences
• Main Authors: del Río, Claudia Julia, Griffin, Miguel, McArthur, John M., Martínez, Sergio Agustín, Thirlwall, Matthew F.
• Format: Article in Journal/Newspaper
• Language: English
• Published: Elsevier
• Subjects: Tortonian; Late Miocene; Zanclean; Early Pliocene; Patagonia; Argentina; 87sr/86sr; https://purl.org/becyt/ford/1.5; https://purl.org/becyt/ford/1; Argentino; Austral; Cockburn; Martínez; McArthur; Uruguay; Antarc*; Antarctica
• Online Access: http://hdl.handle.net/11336/23383

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 ± 0.82 Ma, 2 s.e.), and provide evidence of the first documented early Plioc...