Structures of the Earth Flashcards
The compositional layers of the earth (in order)
Crust - Mantle - Core
Compositional layers of the earth (in order)
Crust (0-100km) - Mantle (100-2900km) - Core (2900-6370km)
Mechanical Layers of the earth (in order)
Lithosphere (0-100km) - Asthenosphere (100-350km) - Mesosphere (350-2900km) - Outer core (2900-5100km) - Inner core (5100-6370km
The thinnest and outermost later of the earth
Crust
Underneath some mountains, the crusts thickness extends to ___
72 kilometer
oceanic crust is made of dense rocks such as
Basalt
Continental crust is made of less dense rocks such as
Granite
the mantle takes up about __ of the earths total volume and about __ of its total mass
80% total volume, 68% total mass
Is made up of iron and nickel (creates the earths magnetism)
Outer core
temp reaches 5000°c (Immense pressure)
Inner core
Meteorite analysis have revealed that the most common type is ______
Chondrite
this is the layer in which the lithosphere moves on
Asthenosphere
This mechanical layer is otherwise known as the soft layer of the mantle
Asthenosphere
The layer below the asthenosphere but above the outer core
Mesosphere
Extremely Rigid.
Mesosphere