Oasis crater
Oasis crater | |
---|---|
Impact crater/structure | |
Confidence | Confirmed |
Diameter | 18 kilometres (11 mi) |
Age | <120 Ma |
Exposed | Yes |
Drilled | No |
Location | |
Country | Libya |
Oasis is a meteorite crater in Libya. The crater is exposed at the surface, and has been significantly eroded. The prominent topographic ring is only the central uplift, which is about 5.2 kilometres (3.2 mi) in diameter, while the original crater rim is estimated to have been 18 kilometres (11 mi) in diameter. The age is estimated to be less than 120 million years (Lower Cretaceous).[1]
The Oasis crater was photographed from space during the Apollo-Soyuz Test Project, and was recognized as a "possible astrobleme" at the time.[2] The crater had been recognized prior to this in 1969 by A. J. Martin.[3] The crater was also described by French et al.[4]
About 88 km (55 mi) to the north is the smaller BP Structure.
References
[edit]- ^ "Oasis". Earth Impact Database. Planetary and Space Science Centre University of New Brunswick Fredericton. Retrieved 2009-08-16.
- ^ Apollo-Soyuz Test Project Preliminary Science Report. NASA TM X- 58173. Feb. 1976.
- ^ Martin, A. Possible Impact Structure in Southern Cyrenaica, Libya. Nature 223, 940–941 (1969). https://doi.org/10.1038/223940a0
- ^ French, Bevan M.; Underwood, James R., Jr.; and Fisk, Edward P.: Shock -Metamorphic Features in Two Meteorite Impact Structures, Southeastern Libya. Bull. Geol. Soc. America, vol. 85, no. 9 , Sept. 1974 , pp. 1425-1428.
External links
[edit]- Anonymous (nd) Africa (Impact Craters), Earth Impact Database, Planetary and Space Science Centre Archived 2010-02-12 at the Wayback Machine, University of New Brunswick, New Brunswick, Canada.
- Stephan van Gasselt; Jung Rack Kim; Yun-Soo Choi; Jaemyeong Kim (2017). "The Oasis impact structure, Libya: geological characteristics from ALOS PALSAR-2 data interpretation". Earth, Planets and Space. 69 (35). Bibcode:2017EP&S...69...35V. doi:10.1186/s40623-017-0620-8.
24°34′28″N 24°24′37″E / 24.57444°N 24.41028°E