Crater Name  Location  Latitude  Longitude  Diameter (km)  Age (Ma)  Exposed  Drilled  Target Rock**  Bolide Type***
 Talemzane  Algeria  N 33° 19'  E 4° 2'  1.75  < 3  N  Y  S  -

1. Photograph (Image Credit: Aissa Moussa Mohammed)

2. Aerial oblique view - from a British Airways flight from Cape Town to London. Image kindly submitted by Ross Richards

3. Landsat ETM

4. Photograph

5. DEM image Provided by Dr. Carlos Roberto de Souza Filho

6 & 7. Image Provided by Dr. Carlos Roberto de Souza Filho


Elachi, C., Shuttle imaging radar experiment. Science, v. 218, pp. 996-1003. 1982.
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Gurov, E. P., Gurova, E. P., Impact structures on the Earth's surface (in Russian). Geologicheskii Zhurnal, v. 47, pp. 117-124. 1987.
Karpoff, R., A "meteorite" crater at Talemzane in southern Algeria, with discussion (in French). International Geological Congress, 19th, Algiers, pp. 233-241. 1954.
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* 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)