Felsic lava. Major component of felsic lava. Definition of felsic lava. Definition lava tubes. Lava tubes.
Volcanic Rock Fragments. Volcanic features. Predicting Volcanic Eruptions. Definition of aa. Aa. Definition of pahoehoe. Pahoehoe. Pillow lava. Definition of pillow lava. Mafic lava. Definition of mafic lava.