Α - Β - Γ - Δ - Ε - Ζ - Η - Θ - Ι - Κ - Λ - Μ -
Ν - Ξ - Ο - Π - Ρ - Σ - Τ - Υ - Φ - Χ - Ψ - Ω
A - B - C - D - E - F - G - H - I - J - K - L - M -
N - O - P - Q - R - S - T - U - V - W - X - Y - Z
0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9
AABW , Antarctic bottom water
AAC , Antarctic convergence
ABC system
Ablation
Ablation zone
Absarokite
Αbsolute age
Abyssal fan
Abyssal gap
Abyssal hill
Abyssolith
Acadian orogeny
Age (geology)
Agmatite
Ankerite
Annual layer
Arch
Archipelago
Atoll
Ayre
