▁another ▁proposed ▁super c rat on ▁composed ▁of ▁the ▁Z imb ab we ▁and ▁Y il g arn ▁cr at ons ▁at ▁ 2 . 4 1   G a , ▁is ▁distinct ▁from ▁Va al bara . ▁ ▁Z img arn ▁should ▁have ▁dis integr ated ▁around ▁ 2 . 1 – 2 . 0   G a ▁to ▁re ass emble ▁as ▁the ▁Kal ah ari ▁and ▁West ▁Australian ▁( Y il g arn ▁and ▁Pil bara ) ▁cr at ons ▁around ▁ 1 . 9 5 – 1 . 8   G a . ▁ ▁The ▁Arch ae an - P ala e opro ter oz o ic ▁Gr une h og na ▁C rat on ▁in ▁D ron ning ▁Ma ud ▁Land , ▁East ▁Ant arct ica , ▁formed ▁the ▁eastern ▁part ▁of ▁the ▁Kal ah ari ▁C rat on ▁for ▁at ▁least ▁a ▁billion ▁years . ▁ ▁Gr une h og na ▁coll ided ▁with ▁the ▁rest ▁of ▁East ▁Ant arct ica ▁during ▁the ▁Mes opro ter oz o ic ▁assembly ▁of ▁the ▁super cont inent ▁Rod in ia ▁and ▁the ▁Gren ville ▁or ogen y . ▁ ▁The ▁Ne opro ter oz o ic ▁Pan - A fr ican ▁or ogen y ▁and ▁the ▁assembly ▁of ▁G ond w ana / P annot ia ▁produced ▁large ▁she ar ▁zones ▁between ▁Gr une h og na ▁and ▁Kal ah ari . ▁ ▁During ▁the ▁Jur ass ic ▁break - up ▁of ▁G ond w ana ▁these ▁she ar