oceanic
Eon, Era, Period, Epoch
radiometric
silicates (the light colour group)
Discontinuous
silicates (the light colour group)
Lithologic correlation, Stratigraphic correlation, Fossil Correlation
Endogenic
iron, nickel
light, dark
Intrusive, Extrusive
Fluvial
Lithosphere
Mass wasting
Uniformitarianism
Rock cycle
Original Horizontality
Laterite
Subduction
Inclusions
Euhedral
Alluvial soil
Silicates
2900
Geochronology
air, water
limestone
carbonates
40
Moho
Streak