▁E A O ▁evol ved ▁from ▁an ▁acc ret ion ary ▁or ogen y ▁involving ▁the ▁am alg am ation ▁of ▁ar cs ▁and ▁evol ved ▁into ▁a ▁coll is ional ▁or ogen y ▁when ▁the ▁Ne opro ter oz o ic ▁continent ▁Az ania ▁coll ided ▁with ▁the ▁Congo - T anz ania - B ang we ulu ▁Block ▁at ▁ ▁. ▁ ▁In ▁another ▁model , ▁the ▁assembly ▁of ▁East ▁G ond w ana ▁▁ ▁was ▁a ▁multi phase ▁process ▁which ▁included ▁two ▁main ▁periods ▁of ▁or ogen esis : ▁the ▁older ▁E A O ▁( ▁) ▁and ▁the ▁younger ▁Ku ung a ▁O ro gen y ▁( ▁). ▁ ▁In ▁the ▁former ▁scenario ▁the ▁Ku ung a ▁O ro gen y ▁of ▁the ▁latter ▁scenario ▁are ▁two ▁co eval ▁events : ▁the ▁coll isions ▁between ▁India ▁and ▁Australia - E ast ▁Ant arct ica ▁and ▁Az ania ▁and ▁India . ▁ ▁Furthermore , ▁the ▁two ▁or og ens ▁of ▁the ▁latter ▁scenario ▁intersect ▁in ▁Mad agas car , ▁the ▁proposed ▁location ▁of ▁the ▁Az ania - Ind ia ▁collision , ▁and ▁this ▁part ▁of ▁the ▁Ku ung a ▁O ro gen y ▁should ▁be ▁renamed ▁the ▁Mal ag asy ▁O ro gen y . ▁ ▁E ros ion ▁and ▁Camb rian ▁explos ion ▁The ▁East ▁African ▁or ogen y ▁resulted ▁in ▁the ▁formation ▁of ▁an ▁enorm ous ▁mountain ▁chain , ▁known ▁as ▁the ▁Trans g ond wan an ▁Super mount ain , ▁which ▁was ▁more ▁than ▁- long ▁and ▁-