volcanic and geologic terms glossary

seismology glossary	AA	Batholith	pyroclastic flow
Fumarole	Active volcano	Surtseyan eruption	nuee ardente
eruptive vent	shield volcano	stratovolcano	turbidity current
horizontal blast	lahar	Lava	Basalt
Crater	volcano	Sunset Crater Volcano National Monument	stable isotope geochemistry
tephra	seafloor spreading