Sevilleta Metarhyolite
The Sevilleta Metarhyolite (or Sevilleta Formation) is a geologic formation in central New Mexico. It has a radiometric age of 1665 ± 16 Ma, corresponding to the Statherian period.
| Sevilleta Metarhyolite | |
|---|---|
| Stratigraphic range: | |
Sevilleta Metarhyolite west of Abo Pass, New Mexico, US | |
| Type | Formation |
| Unit of | Manzano Group |
| Underlies | Abajo Formation |
| Overlies | Bootleg Canyon Sequence |
| Thickness | 4,500 ft (1,400 m) |
| Lithology | |
| Primary | Rhyolite |
| Other | Schist, amphibolite |
| Location | |
| Coordinates | 34.408°N 106.525°W |
| Region | Los Pinos Mountains, New Mexico |
| Country | United States |
| Type section | |
| Named for | Sevilleta land grant, Socorro County, New Mexico |
| Named by | Stark and Dapples |
| Year defined | 1946 |
Sevilleta Metarhyolite (the United States) Sevilleta Metarhyolite (New Mexico) | |
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