Talemzane crater

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 / 33.31500°N 4.03528°E / 33.31500; 4.03528
CountryAlgeria
StateLaghouat Province
Location of the crater in Algeria

Talemzane or madena (Tamazight: ⵜⴰⵍⴻⵎⵣⴰⵏ Arabic: تالمزان/مادنة) is an impact crater in Algeria, 40 km south-east of Hassi Delaa (a small city). The Arabic name of the crater is "Maadna" and means "depression of ore."

The Talemzane crater has a diameter of 1.75 km. As such, it is classified as a "simple crater" (meaning a diameter of less than 2 km). It is one of two simple craters in Algeria's Saharan Platform. According to estimates, the crater formed between 203,000 and 3 million years ago. The crater was explored for the first time in 1928 and studied in 1950 and 1988 by researchers from the universities of Oran (Algeria) and Nice (France).