Key: Eugeosynclinal Deposits

• Tertiary
  • Tmoe Miocene and Oligocene
  • Toee Oligocene and Eocene
  • Tee Eocene
• Mesozoic
  • Ke Cretaceous
  • uMze Upper Mesozoic
  • lMze Lower Mesozoic
  • TrPe Triassic to Permian
• Paleozoic
  • Pe Permian
  • uPze Upper Paleozoic
  • De Devonian
  • DSe Devonian and Silurian
  • Se Silurian
  • lPze Lower Paleozoic
  • SOe Silurian and Ordovician
  • Oe Ordovician
  • Ce Cambrian