Looking through Earth Inside Flashcards
three layers of the earth
crust, mantle, and core
it is the layer beneath the crust
mantle
it is a ultramafic rock that is made of iron and magnesium
peridotite
it is caused by heat currents that allow materials to flow and move freely
convection
it is the inner part of the Earth
core
the core is made up of 2 materials, what are those?
iron and nickel alloy
it is the lowest part of the mantle, next to the outer core
mesosphere
it is the external part of the core
outer core
it is beneath the outer core that is solid
inner core
it is the quick change in seismic velocities in a boundary
seismic discontinuity
it is between the hydrosphere and crust
Conrad discontinuity
upper mantle and lower mantle
Repeti Discontinuity
between the crust and mantle
Mohorovich Discontinuity
core is separated from the mantle
Gutenberg Discontinuity
upper core and lower core
Lehmann Discontinuity