| Ritoque Formation | |
|---|---|
| Stratigraphic range: Early Hauterivian ~ | |
| Type | Geological formation |
| Underlies | Paja Formation |
| Overlies | Rosablanca Fm., Arcabuco Fm. |
| Thickness | 70–110 m (230–360 ft) |
| Lithology | |
| Primary | Siltstone |
| Other | Limestone |
| Location | |
| Coordinates | 4°27′07″N 74°03′20″W / 4.45194°N 74.05556°W |
| Region | Altiplano Cundiboyacense Eastern Ranges, Andes |
| Country |  Colombia |
| Type section | |
| Named for | Vereda Ritoque, Villa de Leyva |
| Named by | Etayo |
| Location | Villa de Leyva |
| Year defined | 1968 |
| Coordinates | 4°27′07″N 74°03′20″W / 4.45194°N 74.05556°W |
| Region | Boyacá, Santander |
| Country | Colombia |
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).