Cutoff Formation
| Cutoff Formation | |
|---|---|
| Stratigraphic range: | |
| Type | Formation |
| Underlies | Cherry Canyon Formation Brushy Canyon Formation |
| Overlies | Bone Spring Formation Victorio Peak Formation |
| Thickness | 233 feet (71 m) |
| Lithology | |
| Primary | Shale |
| Location | |
| Coordinates | 32°00′07″N 104°55′16″W / 32.002°N 104.921°W |
| Region | Texas New Mexico |
| Country |  United States |
| Type section | |
| Named for | Cutoff Mountain |
| Named by | King |
| Year defined | 1942 |
  Cutoff Formation (the United States)  Cutoff Formation (New Mexico) | |
The Cutoff Formation is a
period
.
Description
The Cutoff Formation consists of 233 feet (71 m)paleocanyons cut deeply in the Cutoff Formation, in some cases cutting clear through to the underlying Bone Springs or Victorio Peak beds.[3]
The formation is interpreted as a deep basin formation deposited on a drowned shelf to basin topography. It contains numerous turbidite sequences.[4]
Fossils
Limestone beds of the formation contain
Foordiceras, and the fusulinid Parafusulina.[1]
History of investigation
The unit was first designated as the Cutoff shaly member of the Bone Spring Limestone by P.B. King in 1942, for exposures on the west face of Cutoff Mountain near the New Mexico - Texas border.[5]
See also
References
- ^ a b Boyd, D.W. (1958). "Permian sedimentary facies, central Guadalupe Mountains, New Mexico". New Mexico Bureau of Geology & Mineral Resources Bulletin. 49: 13–14. Retrieved 17 February 2022.
- ISBN 9781585460106.
- ^ Kues & Giles 2004, pp. 100, 122, 124].
- ISBN 978-1-56576-287-9. Retrieved 18 February 2022.
- .