Tectonic Implications of Deep-Marine Miocene Strata in the Western Andean Cordillera of South–Central Chile (40°–42°S)

Alfonso Encinas, Patricio Zambrano, Pablo Bernabé, Kenneth Finger, Luis Buatois, Victor Valencia, Mark Fanning, Francisco Hervé

Resultado de la investigación: Contribución a los tipos de informe/libroCapítulorevisión exhaustiva

Resumen

Marine Cenozoic strata crop out in the western flank of the North Patagonian Andes at Lago Ranco (40°S) and Ayacara (42°S). These deposits, known as the Estratos de Lago Ranco and Ayacara formations, consist of rhythmic successions of sandstone and siltstone. In order to unravel the sedimentary environment, age, and tectonic history of this area during the Neogene, we conducted sedimentological, ichnological, and micropalaeontological studies. In addition, we dated detrital zircons by U–Pb (LAICPMS and SHRIMP). Our results show that these strata were deposited in a deep-marine environment during the early–middle Miocene. Our findings indicate that the uplift of the western flank of the North Patagonian Andes took place after the early–middle Miocene.

Idioma originalInglés
Título de la publicación alojadaSpringer Geology
EditorialSpringer
Páginas499-501
Número de páginas3
DOI
EstadoPublicada - 1 ene 2014
Publicado de forma externa

Serie de la publicación

NombreSpringer Geology
ISSN (versión impresa)2197-9545
ISSN (versión digital)2197-9553

Áreas temáticas de ASJC Scopus

  • Ciencias planetarias y de la Tierra (todo)

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