VOLCANOES 2
Terms
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- SAID OF A VOLCANO THAT DOES NOT SHOW SIGNS OF ERUPTING IN THE NEAR FUTURE
- DORMANT VOLCANO
- VOLCANO THAT IS ERUPTING OR HAS SHOWN SIGNS OF ERUPTING IN THE NEAR FUTURE
- ACTIVE VOLCANO
- A STEEP, CONE-SHAPED HILL OR MOUNTAIN MADE OF VOLCANIC ASH, CINDERS, AND BOMBS PILED UP AROUND A VOLCANO'S OPENING
-
CINDER CONE VOLCANOES
- A BOWL-SHAPED AREA THAT FORMS AROUND A VOLCANO'S CENTRAL OPENING
- CRATER
- A HOT, FAST-MOVING TYPE OF LAVA THAT HARDENS TO FORM SMOOTH, ROPE-LIKE COILS
- PAHOEHOE
- THE OPENING THROUGH WHICH MOLTEN ROCK IS SHARPLY DIFFERENT FROM THE SURROUNDING ROCK
- VENT
- A WIDE, GENTLY-SLOPING MOUNTAIN MADE OF LAYERS OF LAVA AND FORMED BY QUIET ERUPTIONS
- SHIELD VOLCANO
- A MASS OF ROCK FORMED WHEN A LARGE BODY OF MAGMA COOLED INSIDE THE CRUST
- BATHOLITH
- SAID OF A VOLCANO THAT IS UNLIKELY TO ERUPT AGAIN
- EXTINCT
- THE MOLTEN MIXTURE OF ROCK-FORMING SUBSTANCES, GASES, AND WATER FROM THE MANTLE
- MAGMA
- A LONG TUBE THROUGH WHICH MAGMA MOVES FROM THE MAGMA CHAMBER TO EARTH'S SURFACE
- PIPE
- A SLAB OF VOLCANIC ROCK FORMED WHEN MAGMA SQUEEZES BETWEEN LAYERS OF ROCK
- SILL
- A MATERIAL THAT IS FORMED FROM THE ELEMENTS OXYGEN AND SILICON; FOUND IN MAGMA
- SILICA
- A WEAK SPOT IN THE CRUST WHERE MAGMA HAS COME TO THE SURFACE
- VOLCANO
- A SLAB OF VOLCANIC ROCK FORMED WHEN MAGMA FORCES ITSELF ACROSS ROCK LAYERS
- DIKE
- AN AREA WHERE MAGMA FROM DEEP WITHIN THE MANTLE MELTS THROUGH THE CRUST ABOVE IT
- HOT SPOT
- THE EXPULSION OF ASH, CINDERS, BOMBS, AND GASES DURING AN EXPLOSIVE VOLCANIC ERUPTION
- PYROCLASTIC FLOW
- THE POCKET BENEATH A VOLCANO WHERE MAGMA COLLECTS
- MAGMA CHAMBER
- LIQUID MAGMA THAT REACHES THE SURFACES; ALSO THE ROCK FORMED WHEN LIQUID MAGMA HARDENS
- LAVA
- THE LARGE HOLE AT THE TOP OF A VOLCANO FORMED WHEN THE ROOF OF A VOLCANO'S MAGMA CHAMBER COLLAPSES
- CALDERA