Ritoque Formation
Geological formation in the Colombian Andes
The Ritoque Formation (Spanish: Formación Ritoque, Kiri, Kirt) is a geological formation of the Altiplano Cundiboyacense, Eastern Ranges of the Colombian Andes. The formation consists of grey siltstones, limestones and fine sandstones intercalated. The formation dates to the Early Cretaceous period; Early Hauterivian epoch and varies in thickness between 70 and 110 metres (230 and 360 ft).
01Definition
The formation was first defined and named by Etayo in 1968 after the vereda Ritoque of Villa de Leyva.
02Description
Lithologies
The Ritoque Formation is characterised by a sequence of grey siltstones, limestones and sandstones with a thickness between 70 and 110 metres (230 and 360 ft).
Stratigraphy and depositional environment
The Ritoque Formation overlies the Rosablanca and Arcabuco Formations and is overlain by the Paja Formation. The age has been estimated to be Early Hauterivian. Stratigraphically, the formation is time equivalent with the Macanal Formation.
03Outcrops
The Ritoque Formation is found, apart from its type locality near Villa de Leyva, Boyacá, found in the vicinity.
Sources and credits
This article is adapted from the Wikipedia article “Ritoque Formation”, written by its contributors and licensed under CC BY-SA 4.0. Fathomly has changed the layout, removed citation markers, navigation and maintenance notices, and adjusted punctuation. This adapted version is shared under the same license. For references, see the original article.
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