The Lower Cretaceous Apeleg Formation of the Aisen Basin, southern Chile. Tidal sandbar deposits of an epicontinental sea

C. Mike Bell, Manuel Suárez

Resultado de la investigación: Contribución a una revistaArtículo

20 Citas (Scopus)

Resumen

The Apeleg Formation is a Lower Cretaceous marine succession of the Aisen Basin of southern Chile. Clastic sediments were deposited in a shallow epicontinental sea in a north-south elongated retroarc basin. This sedimentary basin developed as a thermal sag to the east of a subduction-related magmatic arc on the South American continental margin. A sequence of up to 1200 m of well-sorted sandstones and mudstones are characterised by mud-draped ripples and a well-preserved and varied trace fossil assemblage. The sediments were deposited as offshore tidal sandbars or sand ridges on a shallow marine shelf.

Idioma originalInglés
Páginas (desde-hasta)203-225
Número de páginas23
PublicaciónRevista Geologica de Chile
Volumen24
N.º2
EstadoPublicada - 1 dic 1997

Áreas temáticas de ASJC Scopus

  • Geología

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