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
Maar
Maastrichtian
Macrotidal
Maentwrogian
Maestro
Mafic
Magma chamber
Magmatic arc
Magmatic differentiation
Magmatic-segregation deposit
Magnesiochromite
Magnesite
Magnesium number
Magnetic age
Magnetic anomaly
Magnetic dating
Magnetic field
Magnetic flux
Magnetic gradiometry
Magnetic induction
Magnetic orientation
Magnetic storm
Magnetochronology
Magnetogram
Magnetometer
Magnetopause
Magnetostratigraphic time-scale
Majanna
Malachite
Mallet, Robert
Malvernian
Manganese nodule
Manning equation
Mantell, Gideon Algernon
Marble
Marcasite
Mauritanide Belt
Meghalayan
Messinian
Miaolingian
Milankovitch cycles
Middle Jurassic
Middle Triassic
Miller, William Hallowes
Miller–Bravais indices
Millerite
Milne, John
Mindel
Mindyallan
Mineral
Mineralogy
Miocene
Miogeocline
Miscibility
Mississippian
Missourian
Mistral
Mitchellian
Mixolimnion
Moershoofd
Mofette
Mogi doughnut hypothesis
Mogote
Mohnian
Mohorovicic, Andrija
Mohorovicic discontinuity
Mohr stress diagram
Mohs, Friedrich
Mohs’s scale
Moinian
Mollic horizon
Mollisols
Molybdenite
Monadnock
Monian
Monimolimnion
Monoclinic
Monocraterion
Monsoon
Montmorillonite
Monzodiorite
Monzogabbro
Monzonite
Morphoclimatic zone
Morphological mapping
Morphotectonics
Morrowan
Moscovian
Muschelkalk
Muscovite
Myachkovskian
Mylonite
