Place · Eye of the Sahara and Atlantis

Richat Structure

Eroded igneous dome about 40 km across

Eroded igneous dome about 40 km across0

Note

Centre of the structure from Wikidata Q744591 (GeoNames 2376915); Wikipedia gives 21.1147 N, 11.3943 W, within 1.5 km. The dome itself is about 40 km across.

Located in 1

Adrar

Place

PLC

Cites 1

Richat Structure, a Cretaceous Alkaline Complex

SRC

Happened here 9

Abdeina and colleagues model the gabbro rings as sills about 100 million years older than the dome

Event

EVT

Alexander and Rosen visit the structure to film it as Atlantis

Event

EVT

An Expedition 30 crew member photographs the structure from the International Space Station

Event

EVT

Dietz, Fudali and Cassidy conclude the Richat is not an impact structure

Event

EVT

G. Prince finds an undisturbed pebble-tool site in the Richat

Event

EVT

Giresse, Sao and de Lumley publish radiocarbon dates on the outer-ring alluvium

Event

EVT

Matton, Jébrak and Lee publish the alkaline-complex model of the Richat

Event

EVT

Missions led by Henry de Lumley study the Palaeolithic of the Adrar and the Richat

Event

EVT

The IUGS lists the Richat as a geological heritage site

Event

EVT

Cite it

Mysteries Department. (2026). Richat Structure [Place PLC0DCKQ46BYTNY]. https://mysteriesdept.com/r/PLC0DCKQ46BYTNY

@misc{mysteriesdept_plc0dckq46bytny,
  title     = {Richat Structure},
  author    = {{Mysteries Department}},
  year      = {2026},
  note      = {Place, catalog key PLC0DCKQ46BYTNY},
  url       = {https://mysteriesdept.com/r/PLC0DCKQ46BYTNY}
}