| Jimol Formation | |
|---|---|
| Stratigraphic range: Burdigalian (Santacrucian) ~ | |
| Type | Geological formation |
| Unit of | Cocinetas Basin |
| Underlies | Castilletes Formation |
| Overlies | Uitpa Formation |
| Thickness | up to 203 m (666 ft) |
| Lithology | |
| Primary | Sandstone |
| Other | Siltstone, mudstone |
| Location | |
| Coordinates | 11°58′00″N 71°22′43″W / 11.96667°N 71.37861°W |
| Region | La Guajira Caribbean region |
| Country |  Colombia |
| Type section | |
| Named for | Cerro Jimol |
| Named by | Renz |
| Location | Uribia |
| Year defined | 1960 |
| Coordinates | 11°58′00″N 71°22′43″W / 11.96667°N 71.37861°W |
| Region | La Guajira |
| Country | Colombia |
  Type locality of the formation in La Guajira | |
The Jimol Formation (Spanish: Formación Jimol, N1j) is a fossiliferous geological formation of the Cocinetas Basin in the northernmost department of La Guajira. The formation consists of calcareous lithic and fossiliferous sandstones, siltstones and mudstones. The Jimol Formation dates to the Neogene period; Burdigalian stage, Santacrucian in the SALMA classification, and has a maximum thickness of 203 metres (666 ft).