Volcanic Activity
How many types of volcanic activity are there?
3
what is the instrument used to measure the size of earthquakes, helping scientists predict volcanic eruptions?
a seismograph
Laccoliths are much deeper and larger than batholiths
True or False
False, batholiths are much deeper and larger than laccoliths
What is a lahar?
A volcanic mudflow
Gas Emmissions can destroy anything? True or False?
True
Where was the eruption of mount ontake located
Japan
volcanoes emit gases such as carbon dioxide before an eruption due to this substance rising to the surface.
magma
what forms inside a volcano's vent?
volcanic neck
is batholith created by extrusive volcanic activity?
True or false
false
What are the small particles from the volcano that enters the atmosphere?
Small volcano rocks
what eruption is an example of a magmatic eruption?
Mount St. Helens
what increases near a volcano before an eruption as more magma gathers beneath the surface?
gravational pull
what are solidified horizontal layers of rock called?
Sills
Calderas form when a volcano’s magma chamber empties and the mountain collapses.
True or false
True
Direct Hazard