The La Naveta Formation (Spanish: Formación La Naveta, Kiln) is a geological formation of the Altiplano Cundiboyacense, Eastern Ranges of the Colombian Andes. The formation consists of a lower part of coraline limestones and an upper sequence of quartzitic sandstones with intercalated black shales and dates to the Early Cretaceous period; Hauterivian to Barremian epochs.
| La Naveta Formation | |
|---|---|
| Stratigraphic range: Hauterivian-Barremian ~ | |
| Type | Geological formation |
| Underlies | Trincheras Formation |
| Overlies | Útica Formation |
| Thickness | unknown |
| Lithology | |
| Primary | Siltstone |
| Other | Shale |
| Location | |
| Coordinates | 5°15′13″N 74°20′28″W / 5.25361°N 74.34111°W |
| Region | Altiplano Cundiboyacense Eastern Ranges, Andes |
| Country |  Colombia |
| Type section | |
| Named by | Hubach |
| Location | Bogotá River |
| Year defined | 1931 |
| Coordinates | 5°15′13″N 74°20′28″W / 5.25361°N 74.34111°W |
| Region | Cundinamarca |
| Country | Colombia |
Etymology
editThe formation was first defined as Horizonte de La Naveta by Hubach in 1931 and in 1969 by Cáceres and Etayo elevated to formation.[1]
Description
editLithologies
editThe La Naveta Formation is characterised by a lower part of coraline limestone and an upper sequence of quartzitic sandstones with black shales intercalated.[1]
Stratigraphy and depositional environment
editThe La Naveta Formation overlies the Útica Formation and is overlain by the Trincheras Formation. The age has been estimated to be Hauterivian to Barremian. Stratigraphically, the formation is time equivalent with the Las Juntas, Ritoque and Paja Formations.[1]
Outcrops
edit
The La Naveta Formation has its type locality to the north of the Bogotá River.[1]
Regional correlations
editSee also
edit
References
editBibliography
edit- 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 2017-04-26.
- 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
edit- Acosta, Jorge E., and Carlos E. Ulloa. 1998. Plancha 246 - Fusagasugá - 1:100,000, 1. INGEOMINAS. Accessed 2017-06-06.
External links
edit- 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 2017-03-16.