Onate Formation
| Onate Formation | |
|---|---|
| Stratigraphic range: Givetian | |
| Type | Formation |
| Underlies | Sly Gap Formation |
| Overlies | Fusselman Formation, Montoya Group |
| Thickness | 85–95 feet (26–29 m) |
| Lithology | |
| Primary | Siltstone |
| Other | Shale, sandstone |
| Location | |
| Coordinates | 32°44′31″N 106°34′19″W / 32.742°N 106.572°W |
| Region | New Mexico |
| Country | United States |
| Type section | |
| Named for | Onate Mountain |
| Named by | F.V. Stevenson |
| Year defined | 1945 |
The Onate Formation is a geologic formation that is exposed in most of the highlands of south-central New Mexico. It preserves fossils dating back to the middle Devonian period.