Caldera de Taburiente
Cumbre Nueva
Laacher See
Pyroclastic flow deposits from Laacher See (Wingertsbergwand)
El Teide
Masca
Ilhéu de Vila Franca do Campo, Azores
Strokkur
Öræfajökull
Hekla
Geothermische mineralisering
Popocatépetl, Mexico
Skjaldbreiður shield volcano
Eyjafjallajökull
Eyjafjallajökull: desolation after the eruption
