Richat Structure

Tsarin Richat, ko Guelb er Richât (Larabci:sanannen siffa ce ta geological madauwari a cikin Adrar Plateau na Sahara. Tana kusa da Ouadane a yankin Adrar na Mauritania. A cikin harshen larabci na Hassaniya, rīšāt na nufin fuka-fukai, kuma ana kiranta da ita a cikin gida a harshen larabci da tagense, inda ake nuni da da’irar buxe jakar fata da ake dibar ruwa daga rijiyoyin gida[1].

Kubba ce mai rusasshiyar ƙasa, kilomita 40 (25 mi) a diamita ta haifar da kutsawa cikin ƙasa mai cike da gurɓataccen yanayi wanda ke haifar da ɓarna da saman dutsen da ke sama, yana haifar da fallasa dutsen a matsayin zoben da ke da alaƙa tare da mafi tsufa yadudduka fallasa a tsakiyar tsarin. An fallasa dutsen mai banƙyama a ciki kuma akwai rhyolites da gabbros waɗanda suka sami canjin hydrothermal, da megabreccia na tsakiya. Tsarin kuma shine wurin tarin tarin kayan aikin dutse na Acheulean Paleolithic. An zaɓe shi a matsayin ɗaya daga cikin wuraren tarihi na ƙasa 100 da Ƙungiyar Ƙwararrun Kimiyya ta Duniya (IUGS) ta gano don zama mafi girman darajar kimiyya. Richard-Molard, J. (1952). "The Pseudo-boutonniers of Richat". Gouvernement Général de l'Afrique Occidentale Française Bulletin de la Direction des Mines. 15 (2): 391–401 
 "The First 100 IUGS Geological Heritage Sites" (PDF). IUGS International Commission on Geoheritage. IUGS. Retrieved 3 November 2022. 
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