Trampas Group
The Trampas Group is a group of geologic formations that crops out in the Picuris Mountains of northern New Mexico. Detrital zircon geochronology yields a maximum age of 1475 million years, corresponding to the Calymmian period.
| Trampas Group | |
|---|---|
| Stratigraphic range: | |
Trampas Group beds in Picuris Mountains | |
| Type | Group |
| Sub-units | Piedra Lumbre Formation Pilar Formation |
| Underlies | Marquenas Formation |
| Overlies | Ortega Formation |
| Thickness | 1,000 m (3,300 ft) |
| Lithology | |
| Primary | Schist, phyllite |
| Other | Quartzite |
| Location | |
| Coordinates | 36.202°N 105.872°W |
| Region | Picuris Mountains, New Mexico |
| Country | United States |
| Type section | |
| Named for | Trampas, New Mexico |
| Named by | Daniel, Pfeiffer, Jones, and McFarlane |
| Year defined | 2013 |
Trampas Group (the United States) Trampas Group (New Mexico) | |
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