Tewa Group
The Tewa Group is a group of geologic formations exposed in and around the Jemez Mountains of northern New Mexico. Radiometric dating gives it an age of 1.85 million to 72 thousand years, corresponding to the Pleistocene epoch.
| Tewa Group | |
|---|---|
| Stratigraphic range: Pleistocene, | |
Kwage Mesa, a finger mesa of the Bandelier Tuff, Tewa Group | |
| Type | Group |
| Sub-units | Bandelier Tuff, Cerro Toledo Formation, Valles Rhyolite |
| Overlies | Polvadera Group |
| Thickness | 1,050 m (3,440 ft) |
| Lithology | |
| Primary | Rhyolite |
| Location | |
| Coordinates | 35.764°N 106.322°W |
| Region | New Mexico |
| Country | United States |
| Type section | |
| Named for | Tewa Mountains (obsolete name for Jemez Mountains) |
| Named by | R.L. Griggs |
| Year defined | 1964 |
Tewa Group (the United States) Tewa Group (New Mexico) | |
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