Talemzane crater

Maadna or Talemzane (Arabic: مادنة / تالمزان‎) is an impact crater in Algeria, 40 km south-east of Hassi Delaa (a small city).[1]

Talemzane crater
Landsat image of the Talemzane crater; screen capture from NASA World Wind
Impact crater/structure
ConfidenceConfirmed
Diameter1.75 km (1.09 mi)
Age<3 Ma
Piacenzian
ExposedNo
DrilledYes
Location
LocationSahara
Coordinates33°18′54″N 4°2′7″E
CountryAlgeria
StateLaghouat Province
Location of the crater in Algeria
Oblique Landsat image of Talemzane crater draped over digital elevation model (x3 vertical exaggeration); screen capture from NASA World Wind

One of four such craters in the country, Madna is classified as a simple crater. It has been designated by the 43rd Lunar and Planetary Science Conference to be a two-million- year-old, "true meteorite crater."[2]

Explored for the first time in 1928, studied in 1950 and 1988 by researchers from the universities of Oran (Algeria) and Nice (France). It is 1.75 km in diameter and the age is estimated to be less than three million years and is probably Pliocene.

The name Maadna is Arabic for "depression of ore."[2]

See also

References
  1. "Talemzane". Earth Impact Database. Planetary and Space Science Centre University of New Brunswick Fredericton. Retrieved 2009-08-16.
  2. Belhai, D. (2012). "New Studies About the Maadna Impact Crater" (PDF). 43rd Lunar and Planetary Science Conference. 32: 1111 – via Universities Space Research Association.

Further reading
  • Karpoff, R., A "meteorite" crater at Talemzane in southern Algeria, with discussion (in French). International Geological Congress, 19th, Algiers, pp. 233–241. 1954
  • Karpoff, R., The meteorite crater of Talemzane in southern Algeria. Meteoritics, v. 1, pp. 31–38. 1953
  • 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. and Houfani, M., Impact and impact-like structures in Algeria. Part I. Four bowl-shaped depressions. Meteoritics, v. 15, pp. 157–179. 1980
  • Lambert, P., McHone, J.F. Jr., Dietz, R.S., Djender, M. and Briedj, M., Multi-ringed structures in Algeria: Ancient impact craters or not? (abstract). International Geological Congress, 26th, Paris, France, v. 3, pp. 1248. 1980
  • McHone, J. F. Jr., Greeley, R., Talemzane: Algerian impact crater detected on SIR-A orbital imaging radar. Meteoritics, v. 22, pp. 253–264. 1987
  • McHone, J. F. Jr., Lambert, P., Dietz, R.S. and Houfani, M., Bowl-shaped impact craters and circular depressions in Algeria (abstract). International Geological Congress, 26th, Paris, France, v. 3, p. 1250. 1980
  • McHone, J. F. Jr., Lambert, P., Dietz, R.S. and Briedj, M., Impact structures in Algeria (abstract). Meteoritics, v. 15, pp. 331–332. 1980


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