~ ACTIVE VOLCANOES ~

cinder cone
spatter cones
explosive volcanism
active aa flow
dome fountains

~ VOLCANIC MATERIALS ~

lava toe
rough, spiny lava
flowers & cinders
loose cinders
volcanic bomb
ropy lava
black volcanic glass
"columnar" lava flow
loose volcanic ash
welded volcanic ash
ancient lava flow
© 2001; David J. Leveson