Page 275 - Ultimate Visual Dictionary (DK)
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VOLCANOES
TYPES OF LAVA LOCATION OF VOLCANOES
Driblets of
Scoria (sharp, lava from roof
angular of tunnel
chunks)
AA (BLOCKY LAVA) REMELTED LAVA
Volcano Plate boundary
STRUCTURE OF A Plug (solidified lava)
VOLCANO Vent
Volcanic ash
Steeply sloping cone Main conduit Cinder
consisting of numerous
cone
layers of ash and lava
Laccolith Mineral
spring
Secondary
conduit
Magma Lava
reservoir flow Groundwater
VOLCANIC FEATURES
Jet of hot water
Sulfurous and steam Mud and surface Superheated
gases Steam Hot deposits mixed water
Water heated pressure water with hot water Steam
by hot rocks builds up
SOLFATARA GEYSER MUD POOL FUMAROLE
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