The Canary record of the evolution of the North Atlantic Pliocene: New Ar-40/Ar-39 ages and some notable palaeontological evidence


Autoria(s): Meco, J.; Koppers, Anthony A. P.; Miggins, Daniel P.; Lomoschitz, Alejandro; Betancort-Lozano, Juan Francisco
Data(s)

20/07/2016

20/07/2016

2015

Resumo

<p>[EN] Two new 40Ar/39Ar ages (*) and previously published K/Ar ages of basaltic pillow lava flows are coeval with closely-related fossiliferous marine layers, allowing us to establish the beginning (5.8; 5.0; 4.8Ma at Ajuí, Fuerteventura Island and 4.8±0.03Ma (2?)* at Tamaraceite) and a middle stage (4.20±0.18Ma (2?)* at La Esfinge in Gran Canaria Island) of Early Pliocene marine deposits in the Canary Islands. Here the presence of tropicopolitan fossils (Megaselachus megalodon, Janthina typica) suggests the influence of a possible Central American Circumtropical Current during the Pliocene and in the North Atlantic basin.</p>

Identificador

http://hdl.handle.net/10553/17950

<p>10.1016/j.palaeo.2015.05.027</p>

Idioma(s)

eng

Direitos

Acceso libre

Fonte

<p>Palaeogeography, Palaeoclimatology, Palaeoecology. Amsterdam: Elsevier, 2015. Volume 435, pages 53-69. ISSN:0031-0182</p>

Palavras-Chave #24 Ciencias de la vida #2416 Paleontología
Tipo

info:eu-repo/semantics/other