El Peñón Formation
| El Peñón Formation | |
|---|---|
| Stratigraphic range: Late Aptian ~ | |
| Type | Geological formation |
| Unit of | Villeta Group |
| Underlies | Capotes Formation |
| Overlies | Trincheras Formation |
| Thickness | more than 381 m (1,250 ft) |
| Lithology | |
| Primary | Calcareous shale |
| Other | Siltstone, gypsum |
| 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 for | El Peñón |
| Named by | Ulloa |
| Location | El Peñón |
| Year defined | 1982 |
| Coordinates | 5°15′13″N 74°20′28″W / 5.25361°N 74.34111°W |
| Region | Cundinamarca |
| Country | Colombia |
| Thickness at type section | 381 m (1,250 ft) |
Paleogeography of Northern South America 120 Ma, by Ron Blakey | |
The El Peñón Formation (Spanish: Formación El Peñón, Kipe) is a geological formation of the Altiplano Cundiboyacense, Eastern Ranges of the Colombian Andes. The formation consists of calcareous shales and siltstones and dates to the Early Cretaceous period; Late Aptian epoch and has a measured thickness at its type section of 381 metres (1,250 ft). Ammonite fossils have been found in the formation, deposited in a shallow marine platform environment.