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