| Ritoque Formation | |
| Period: | Hauterivian |
| Age: | Early Hauterivian ~ |
| Type: | Geological formation |
| Prilithology: | Siltstone |
| Otherlithology: | Limestone |
| Underlies: | Paja Formation |
| Overlies: | Rosablanca Fm., Arcabuco Fm. |
| Thickness: | 70- |
| Coordinates: | 4.4519°N -74.0556°W |
| Region: | Altiplano Cundiboyacense Eastern Ranges, Andes |
| Namedfor: | Vereda Ritoque, Villa de Leyva |
| Namedby: | Etayo |
| Year Ts: | 1968 |
| Location Ts: | Villa de Leyva |
| Coordinates Ts: | 4.4519°N -74.0556°W |
| Region Ts: | Boyacá, Santander |
The Ritoque Formation (Spanish; Castilian: 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 70mand110mm (230feetand360feetm).
The formation was first defined and named by Etayo in 1968 after the vereda Ritoque of Villa de Leyva.
The Ritoque Formation is characterised by a sequence of grey siltstones, limestones and sandstones with a thickness between 70mand110mm (230feetand360feetm).[1]
The Ritoque Formation overlies the Rosablanca and Arcabuco Formations and is overlain by the Paja Formation. The age has been estimated to be Early Hauterivian. Stratigraphically, the formation is time equivalent with the Macanal Formation.[2]
The Ritoque Formation is found, apart from its type locality near Villa de Leyva, Boyacá, found in the vicinity.
Geology of the Eastern Hills
Geology of the Ocetá Páramo
Geology of the Altiplano Cundiboyacense