12: earth's interior Flashcards
1
Q
mantle derived magmas that have ascended to the surface and often incorporate the rocks are called
A
xenoliths
2
Q
the upper mantle is mainly comprised of
A
peridotite
3
Q
what crust easily subducts?
A
oceanic crust
4
Q
what lies beneath the lithosphere
A
atmosphere
5
Q
the lower mantle is below the
A
transition zone
6
Q
the mechanism where the core heats the mantle
A
conduction
7
Q
the profile of earths temperature with depth
A
geothermal gradient
8
Q
the resistance to flow in a material
A
viscosity
9
Q
the technique to see earth’s interior from collecting signals from different recorded earthquakes
A
seismic topography
