In the south west part of the crater, new rocks of the Karoo Supergroup covered the dome structure, while other sediments filled in the broad basin around the dome.
Kwa karolong ya borwa bophirima jwa khuti, letlapa le le ntšhwa la Setlhopha se Seglo sa kwa Karoo se ne sa khupetswa ke popego ya kgolokwe, fa diretse tse dingwe di ne tsa tlatsa gamolo ya noka e e bophara go dikologa kgolokwe.