91.40.-k Volcanology ( 0 Dok. )

• 91.40.Bp Ash deposits ( 0 Dok. )
• 91.40.Dr Atmospheric effects (see also 92.60.M Particles and aerosols - in Meteorology) ( 0 Dok. )
• 91.40.Ft Eruptions ( 0 Dok. )
• 91.40.Hw Lava ( 0 Dok. )