Big Rock Formation
The Big Rock Formation is a formation that crops out in the Tusas Mountains of northern New Mexico. Detrital zircon geochronology gives a maximum age for the formation of 1665 Mya, corresponding to the Statherian period.
| Big Rock Formation | |
|---|---|
| Stratigraphic range: | |
Exposure of Big Rock Formation at Mesa la Jara, New Mexico | |
| Type | Formation |
| Unit of | Vadito Group |
| Underlies | Burned Mountain Formation |
| Overlies | Lower Vadito Group |
| Thickness | 70 m (230 ft) |
| Lithology | |
| Primary | Metaconglomerate |
| Other | Quartzite |
| Location | |
| Coordinates | 36.5496°N 106.08744°W |
| Region | Tusas Mountains, New Mexico |
| Country | United States |
| Type section | |
| Named for | Big Rock (36.558°N 106.071°W) |
| Named by | F. Barker |
| Year defined | 1958 |
Big Rock Formation (the United States) Big Rock Formation (New Mexico) | |
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.