The
Richat Structure is a
depression in the country of
Mauritania, almost 50 km (30 mi) across. It was originally thought to be the impact of a
meteorite. Now it is thought to be a symmetrical
uplift (circular
anticline or dome) that has been exposed to
erosion. In this
false-color photo,
bedrock is brown, sand is yellow and white, vegetation is green, and salty
sediments are blue.Photo credit:
Landsat 7
The
Richat Structure is a
depression in the country of
Mauritania, almost 50 km (30 mi) across. It was originally thought to be the impact of a
meteorite. Now it is thought to be a symmetrical
uplift (circular
anticline or dome) that has been exposed to
erosion. In this
false-color photo,
bedrock is brown, sand is yellow and white, vegetation is green, and salty
sediments are blue.Photo credit:
Landsat 7