Travesser Formation
The Travesser Formation is a geologic formation in northeastern New Mexico, southeastern Colorado, westernmost Oklahoma, and northwestern Texas,[1] particularly in the Dry Cimarron valley.[2] It preserves fossils dating back to the late Triassic period.[1]
| Travesser Formation Stratigraphic range: late Triassic | |
|---|---|
| Type | Formation |
| Underlies | Sloan Canyon Formation |
| Overlies | Baldy Hill Formation |
| Thickness | 550 feet (170 m) |
| Lithology | |
| Primary | Siltstone, sandstone |
| Other | Conglomerate |
| Location | |
| Coordinates | 36.93°N 103.48°W |
| Region | New Mexico |
| Country | United States |
| Type section | |
| Named for | Travesser Peak |
| Named by | Baldwin and Muelberger |
| Year defined | 1959 |
  Travesser Formation (the United States)  Travesser Formation (New Mexico) | |
Description
The formation is mostly reddish-brown clay-rich siltstone and fine-grained sandstone, with sandstone beds up to 20 feet (6.1 m) thick. The formation also contains conglomerate lenses up to 20 feet (6.1 m). The total thickness of the formation is 550 feet (170 m). The formation unconformably overlies the Baldy Hill Formation and underlies the Sloan Canyon Formation[1] or locally the Entrada Formation.[2]
History of investigation
The formation was first named by Baldwin and Muelberger in 1959.[1] Lucas et al. rejected the assignment of the formation to the Dockum Group and adjusted the lower contact.[2]
Footnotes
- Baldwin and Muelberger 1959
- Lucas et al. 1987
References
- Baldwin, Brewster; Muehlberger, W.R. (1959). "Geologic studies of Union County, New Mexico". New Mexico Bureau of Mines and Mineral Resources Bulletin. 63–2.
- Lucas, S.G.; Hunt, A.P.; Hayden, S.N. (1987). "The Triassic System in the Dry Cimarron Valley, New Mexico, Colorado, and Oklahoma". New Mexico Geological Society Field Conference Guidebook. 38: 97–117.