Techtonic Settings and Earth Materials Flashcards
Oh god (6 cards)
1
Q
Compositional layers of earth
A
Crust, Mantle, Core
2
Q
Mechanical layers of earth
A
lithosphere, asthenosphere, mesosphere, inner core, outer core
3
Q
Mafic rocks
A
rich in magnesium and iron, oceanic crust
4
Q
Felsic rocks
A
rich in silica, oxygen, aluminum, often continental crust
5
Q
Ocean Crust Structure
A
ultramafic layered rock, gabbro, pillow lavas and sheeted dikes (allowing magma to rise to surface), added sediments
6
Q
Ophiolites
A
Piece of oceanic crust obducted onto continental crust