Complex sentence: The Man Shield or "Leo-Man" Shield or Craton is a geological area in the southeast of the West African Craton, in part overlaid by gold-bearing Birimian formations.
Split into simpler sentences: The Man Shield (Leo-Man Shield or Leo-Man Craton) is a geological shield or craton in the southeast portion of the West African Craton. The shield is in part overlaid by gold-bearing Birimian formations.