| Mealla Formation | |
|---|---|
| Stratigraphic range: Mid-Late Paleocene (Peligran-Riochican) ~ | |
| Type | Geological formation |
| Unit of | Salta Group Santa Bárbara Subgroup |
| Underlies | Maíz Gordo Formation |
| Overlies | Yacoraite Formation |
| Thickness | 100–150 m (330–490 ft) |
| Lithology | |
| Primary | Sandstone, siltstone |
| Other | Conglomerate, paleosols |
| Location | |
| Coordinates | 23°06′S 65°36′W / 23.1°S 65.6°W |
| Approximate paleocoordinates | 25°54′S 53°48′W / 25.9°S 53.8°W |
| Region | Jujuy Province |
| Country | Argentina |
| Extent | Salta Basin |
  Mealla Formation (Argentina) | |
The Mealla Formation is a geological formation of the Santa Bárbara Subgroup, part of the Salta Group in the Salta Basin in northwestern Argentina whose strata date back to the Middle to Late Paleocene of the Paleogene.