4.1
what the oceanic crust is composed of
what is basaltic rock
the liquid layer of the Earth that was in constant motion
what is the outer core
this country sits on a divergent boundary and experiences continental rifting
what is Iceland
tall/symmetrical volcanoes made of layers of lava and ash
what are composite cone volcanoes
this involves creating a plan, prepping an emergency kit, and familiarizing evacuation routes
what is planning for a volcanic eruption
the layer below the lithosphere
what is the asthenosphere
the 2 metals that make up the inner and outer core
what is nickel and iron
these events are caused by transform boundaries
what are earthquakes
largest volcanic eruptions
what are plinian eruptions
breaks in the curst where rocks slip past each other
what are faults
layer beneath the crust that is 1800 miles deep
what is the mantle
the theory of lithosphere motion is also called this
what is the theory of plate tectonics
where volcanism at plate margins occur
what is a subduction zone
these have super eruptions on the VEI scale, measuring an 8/8
what is a supervolcano
these are 2 geologic events that occur at subduction zones
what are earthquakes and volcanic eruptions
thick, buoyant, and mostly older layer of the Earth
what is the continental crust
the number of major Earth plates
what is 12
openings in crust that release magma and gas
what are volcanoes
location above a mantle upwelling
what is a hot spot
vibrations during an earthquake are called these
what are seismic waves
outer layer of Earth that we interact with daily
what is the crust
these are the 3 different types of plate boundaries
what is convergent, divergent, and transform
this eruption contains runny lava and occurs on the west coast
what is an hawaiian eruption
fine particles and volcanic ash carried by the wind are known as this
what is pyroclastic material
area beneath the surface where rocks break
what is the focus