Socotá Formation
Socotá Formation | |
---|---|
Ma | |
Type | Geological formation |
Unit of | Villeta Group |
Underlies | El Peñón Fm., Hiló Fm., Capotes Fm. |
Overlies | Trincheras Formation |
Thickness | more than 255 m (837 ft) |
Lithology | |
Primary | Sandstone |
Other | Shale |
Location | |
Coordinates | 4°31′19″N 74°33′06″W / 4.52194°N 74.55167°W |
Region | Altiplano Cundiboyacense Eastern Ranges, Andes |
Country | Colombia |
Type section | |
Named for | Socotá, Apulo |
Named by | Cáceres & Etayo |
Location | Apulo |
Year defined | 1969 |
Coordinates | 4°31′19″N 74°33′06″W / 4.52194°N 74.55167°W |
Region | Cundinamarca |
Country | Colombia |
Paleogeography of Northern South America 120 Ma, by Ron Blakey |
The Socotá Formation (
ammonite
fossils.
Etymology
The formation was defined as a thicker sequence and named in 1969 by Cáceres and Etayo after Socotá, a vereda of Apulo, Cundinamarca.[1] The name Socotá in Muysccubun, the language of the native Muisca, means either "Land of the Sun and farmfields" or "Good harvest".[2]
Description
Lithologies
The Socotá Formation has a maximum thickness of 600 metres (2,000 ft), and is characterised by a lower sequence of calcareous
Acanthoplites (?) leptoceratiforme have been found in the Socotá Formation.[1]
Stratigraphy and depositional environment
The Socotá Formation overlies the
transgressive cycle.[7]
Outcrops
The Socotá Formation is apart from its type locality, found from Viotá in the south to Útica in the north.[1] The formation crops out on both sides of the Bogotá River in Anapoima and Apulo.[8][9][10]
Regional correlations
See also
- Geology of the Eastern Hills
- Geology of the Ocetá Páramo
- Geology of the Altiplano Cundiboyacense
References
Bibliography
- Acosta Garay, Jorge E., and Carlos E. Ulloa Melo. 2002. Mapa Geológico del Departamento de Cundinamarca - 1:250,000 - Memoria explicativa, 1–108. INGEOMINAS. Accessed 2017-06-05.
- Acosta Garay, Jorge, and Carlos E. Ulloa Melo. 2001. Geología de la Plancha 208 Villeta - 1:100,000, 1-84. INGEOMINAS. Accessed 2017-06-05.
- Villamil, Tomas. 2012. Chronology Relative Sea Level History and a New Sequence Stratigraphic Model for Basinal Cretaceous Facies of Colombia, 161–216. Society for Sedimentary Geology (SEPM).
Maps
- Ulloa, Carlos E; Erasmo Rodríguez, and Jorge E. Acosta. 1998. Plancha 227 - La Mesa - 1:100,000, 1. INGEOMINAS. Accessed 2017-06-06.
- Acosta, Jorge E., and Carlos E. Ulloa. 1998. Plancha 246 - Fusagasugá - 1:100,000, 1. INGEOMINAS. Accessed 2017-06-06.
- García Rivas, Mayen Paola. 2016. Análisis de la vulnerabilidad del recurso hídrico subterráneo por la demanda de los balnearios en el turismo de bienestar, municipios Anapoima y Apulo (Cundinamarca), 1. Universidad Distrital Francisco José de Caldas. Accessed 2017-06-05.
External links
- Gómez, J.; N.E. Montes; Á. Nivia, and H. Diederix. 2015. Plancha 5-09 del Atlas Geológico de Colombia 2015 – escala 1:500,000, 1. Servicio Geológico Colombiano. Accessed 2017-06-05.