540 million years ago this group of flat-lying rocks was intruded by the Kuboos-Bremen suite of granites which occur in a rough line that runs northwest-southeast
540 million wa malembe lawa yanga hundza, ntlawa lowu wa maribye lawa yo phambarhala aya ngheneleriwile hi Kuboos-Bremen suite yati granites, leyi kumekaka eka ntila lowu tsutsumaka kusuka en'walungu vupela dyambu kuya e dzongeni vuhuma dyambu.