Vocab Flashcards
the inter most zone of Earth’s interior composed of mostly iron and nickel. it includes a liquid outer layer and a solid inner layer
Core
molten rock
magma
the layer of earth above the core, containing magma
mantle
the layer of earth located in the outer part of the mantle, composed of semi molten rock. Has plasticity.
asthenosphere
outermost layer of earth, including the mantle and crust
lithosphere
in geology, the chemically distinct outermost layer of the lithosphere
crust
in geology, a place where molten material from Earth’s mantle reaches the lithosphere
hot spot
the theory that the lithosphere of earth is divided into plates most of which are in motion
plate tectonics
the sum of processes that build up and break down the lithosphere
tectonic cycle
the process of one crustal plate crossing under another
subduction
a vent in the surface of earth that emits ash, gas, or molten lava
volcano
an area beneath the ocean where tectonic plates move away from one another
divergent plate boundary
the formation of new ocean crust as a result of magma pushing forward and outward from earths mantle to surface
seafloor spreading
an area where tectonic plates move sideways past each other
transform fault boundary
