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Capotes Formation

Capotes Formation
Stratigraphic range: Early Albian
~112–108 Ma
Type Geological formation
Unit of Villeta Group
Underlies Hiló Formation
Overlies El Peñón Fm., Socotá Fm.
Thickness 550 m (1,800 ft)
Lithology
Primary Calcareous black shale
Other Gypsum
Location
Coordinates 5°15′13″N 74°20′28″W / 5.25361°N 74.34111°W / 5.25361; -74.34111Coordinates: 5°15′13″N 74°20′28″W / 5.25361°N 74.34111°W / 5.25361; -74.34111
Region Eastern Ranges, Andes
Country  Colombia
Type section
Named for Hacienda Capotes, Viotá
Named by Cáceres & Etayo
Location Bituima-Guayabal
Year defined 1969
Coordinates 5°15′13″N 74°20′28″W / 5.25361°N 74.34111°W / 5.25361; -74.34111
Region Cundinamarca
Country  Colombia
Thickness at type section 550 m (1,800 ft)
Blakey 105Ma - COL.jpg
Paleogeography of Northern South America
105 Ma, by Ron Blakey

The Capotes Formation (Spanish: Formación Capotes, Kic) is a geological formation of the Altiplano Cundiboyacense, Eastern Ranges of the Colombian Andes. The formation consists of calcareous black shales containing gypsum and ammonites and dates to the Early Cretaceous period; Early Albian epoch and has an approximate thickness at its type section of 550 metres (1,800 ft).

The formation was defined in 1969 by Cáceres and Etayo as a member of the Socotá Formation. The name is derived from Hacienda Capotes, southeast of Viotá.

The Capotes Formation has a thickness at its type section of approximately 550 metres (1,800 ft), and is characterised by a sequence of organic rich calcareous shales with gypsum. Fossils of Douvilleiceras solitae, Neodeshayesites columbianus and Paracrioceras sp. have been found in the Capotes Formation.

The Capotes Formation, part of the Villeta Group, overlies the Socotá and El Peñón Formations, and is overlain by the Hiló Formation. The age has been estimated to be Early Albian. Stratigraphically, the formation is time equivalent with the Simití Formation. The formation has been deposited in a quiet enclosed shallow marine environment. In terms of sequence stratigraphy, the Albian of current central Colombia experienced a transgressive to highstand sequence.


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