Layers of the Earth Flashcards
Def of density stratification
Each deeper layer is denser than the one above
Density unit
g/cm^3
When/where was the deepest hole drilled into the center of the Earth?
1992
Kola Peninsula, Russia
How deep was the deepest hole drilled into the center of the Earth?
7.5mi
12,063m
3 types of seismic waves
Surface waves
Body waves
P/S waves
Which wave causes property damage?
Surface waves
What is basalt composed of?
makes up most of the oceanic crust
Oxygen, silicon, magnesium, iron
What is granite made of?
Makes up continental crust
Oxygen, silicon, aluminum
The mantle is made of
Silicon, oxygen, iron, magnesium
The core is made of
Iron & nickel, silicon, sulfur, heavy elements
Lithosphere makes up
Oceanic and continental crust
Asthenosphere makes up
Upper part of the mantle
How old is Earth?
4.6 billion years old
Buoyancy
Objects ability to float in fluid by displacing volume of liquid equal in weight to the objects own weight
Three main layers of Earth
Core, mantle, crust
