In which location would you most likely find volcanoes
What provides the force that causes magma to erupt to the surface
dissolved gasses trapped in the magma
sometimes rising magma is blocked by horizontal layers of rock. the magma forces the layers of rock to bend upwards into a landform called a
dome mountain
A pyroclastic flow typically occurs during a quiet eruption
false
a dike forms when magma forces itself between rock layers and hardens
false
a dormant volcano is erupting or may erupt near the future
false
volcanoes that form along a mid-ocean ridge occur at a diverging plate boundary
false
a string of islands known as what can form the collision of 2 oceanic plates
island arc
if geologists detect many small earthquakes in the area near a volcano, what can they infer about the volcano
it is probably about to erupt
molten material that leaves a volcanoes vent is called
lava
the main hazard from a quiet volcanic eruption is
lava flows
when many layers of thin, runny lava build up a high, level area, the result is a
lava plateau
before lava reaches the surface, the molten material is called
magma
the main factor that accounts for the difference between quiet and explosive eruptions
the silica content in the magma
ash, cinders, and bombs build up in a steep pile to form cinder cone volcanoes
true
which volcano hazard is made up of fine rocky particles as small as a speck of dust
volcanic ash
hardened magma in a volcanoes pipe that remains when softer rock around it has worn away is called a
volcanic neck
when magma hardens in a volcanoes pipe, the result will eventually be a landform called a
volcanic neck
In which location would you most likely find volcanoes
along mid-ridges and where a plate is subducted
the smallest lava fragments produced by an explosive eruption are called volcanic
ash
a mass of rock formed when a large body of magma cools inside the crust is called a
batholith
a mass of rock that forms when a large body of magma cools inside the crust is called a
batholith
the huge hole left by the collapse of a volcanic mountain is called a
caldera
when ash, cinders, and bombs build up in a steep pile near the volcanoes vent, the result is a
cinder cone volcano
Tall, cone-shaped mountains in which layers of lava alternate with layers of ash are called
composite volcanoes
mountains that are formed by volcanoes along a coastline occur at what plate boundary
convergent
where can volcanoes be found
convergent, divergent boundaries and hot spots
the bowl shaped area around a volcanoes central vent is called a
crater
a major volcanic belt known as the what circles the pacific ocean
ring of fire
describe how the state of Hawaii was formed
over a hotspot, magma rises, volcano erupts, plate moves
what kind of eruption is likely to occur in a volcano having magma that is low in silica
quiet
