Kuongorora kwekutanga kwakaitwa muna 1946 kwakaratidza kuti mutsipa wekumabvazuva waive kusvika pamamita mazana maviri (656 tsoka) yakadzika ine volcanic geology. Mutsipa wekumadokero waive nekudzika kwakadzika kwemamita zana nemakumi mana nemashanu (459 tsoka) uye geology yaive yakaumbwa nematombo sedimentary enguva yeNeogene. Mutsipa wekumadokero wakasarudzwa, nemamiriro ayo anofungidzirwa kuve akanaka pakuchera.
Kupinda kwegneous uye zvikanganiso