Oasis crater
Template:Short description Template:Infobox terrestrial impact site
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 Script error: No such module "convert". in diameter, while the original crater rim is estimated to have been Script error: No such module "convert". 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] French et al. state that Oasis crater and the smaller BP Structure, about Template:Cvt to the north, were probably simultaneous impacts.[4] Both impacts deform the Nubian Sandstone of early Cretaceous age.
About Template:Cvt to the southeast in Egypt is the much younger Kamil Crater.
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Part of AST image AST-16-1244 showing the crater at center (1975)
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Oblique Landsat image of Oasis crater draped over digital elevation model (x5 vertical exaggeration); screen capture from NASA World Wind
References
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- ↑ Template:Cite Earth Impact DB
- ↑ 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
- ↑ BEVAN M. FRENCH, JAMES R. UNDERWOOD, EDWARD P. FISK; Shock-Metamorphic Features in Two Meteorite Impact Structures, Southeastern Libya. GSA Bulletin 1974;; 85 (9): 1425–1428. doi: https://doi.org/10.1130/0016-7606(1974)85<1425:SFITMI>2.0.CO;2
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External links
- Anonymous (nd) Africa (Impact Craters), Earth Impact Database, Planetary and Space Science Centre Template:Webarchive, University of New Brunswick, New Brunswick, Canada.
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