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Earth Impact Database Sorted by : | Name | Diameter | Age |

 

Ouarkziz

Crater Name
Location
Latitude
Longitude
Diameter (km)
Age (Ma)*
Exposed
Drilled
Target Rock**
Bolide Type***
Ouarkziz
Algeria
N 29° 0'
W 7° 33'
3.5
< 70
Y
N
S
-

 

Space Shuttle image STS41C-31-1032

Landsat Thematic Mapper - Detail

3D Image (anaglyph)

DEM image Provided by Dr. Carlos Roberto de Souza Filho

Image Provided by Dr. Carlos Roberto de Souza Filho

Image Provided by Dr. Carlos Roberto de Souza Filho

References
Denaeyer, M. -E., Gérards, J., A quelle cause attribuer les dépressions cratérifromes du Rwanda? (in French). Bulletin des Séances, v. 4, pp. 784-798. 1973.
Fabre, J., Kazi-Tani, N. and Megartsi,M., The "circle" of Ouarkziz (northwestern Sahara), an astrobleme? (in French). Comptes Rendus, Academie des Sciences, Paris, v. 270, serie D, pp. 1212-1215. 1970.
Fabre, J., Kazi-Tani, N., Megartsi., Ouarkziz, Global Impact Studies Project web page.
Grieve, R. A. F., The record of impact on Earth: Implications for a major Cretaceous/Tertiary impact event. Geological Society of America, Special Paper 190, pp. 25-37. 1982.
Gurov, E. P., Gurova, E. P., Impact structures on the Earth's surface (in Russian). Geologicheskii Zhurnal, v. 47, pp. 117-124. 1987.
Koeberl, C., African meteorite impact craters: Characteristics and geological importance. Journal of African Sciences, v. 18, pp. 263-295. 1994.
Lambert, P., McHone, J.F. Jr., Dietz, R.S., Briedj, M. and Djender,M., Impact and impact-like structures in Algeria. Part II, multi-ringed structures. Meteoritics, v. 16, pp. 203-227. 1981.
Masaitis, V. L., Danilin, A.N., Maschak, M.S., Raykhlin, A.I., Selivanovskaya, T.V. and Shadenkov,Ye.M., The Geology of Astroblemes (in Russian). Leningrad, Nedra, 231 p. 1980.

 

* pre-1977 K-Ar, Ar-Ar and Rb-Sr ages recalculated using the decay constants of Steiger and Jager (1977) Ages in millions of years (Ma) before present.

** Abbreviations: C - Crystalline Target; C-Ms - Metasedimentary Target; M - Mixed Target (i.e.sedimentary strata overlying crystalline basement); S - sedimentary target (i.e. no crystalline rocks affected by the impact event). From Osinski. G. R., Spray J. G., and Grieve R. A. F. 2007. Impact melting in sedimentary target rocks: A synthesis. In The Sedimentary Record of Meteorite Impacts, Geological Society of America Special Paper. Editors: Evans K. Horton W., King D., Morrow J., and Warme J. Geological Society of America: Boulder, in press.

***
From Koeberl,C. Identification of meteoritic components in impactites. 1998, Koeberl, C. The Geochemistry and Cosmochemistry of Impacts. 2007 and PASSC Files. (IAB, IIIAB, IIIB, IIID - Iron Meteorite)

 

 

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