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.
|Number of pages||23|
|Journal||Revista Geologica de Chile|
|Publication status||Published - 1 Dec 1997|
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