Seismic Waves
What are seismic waves?
Vibrations produced by earthquakes
Where is the Crust located?
At the surface of the earth
Where is the mantle located in the earths surface?
below the crust and above the core
Where is the core located
How are seismic waves used to study the earth?
The direction of the wavelengths are observed to infer things about what the waves traveled through
1%
About what percentage of the earths mass is composed of Mantle?
70ish %
What is the core composed of?
The core is primarily composed of Iron and Nickel
What is a P wave, and what is its behavior
The primary waves produced by Earthquakes, they can travel through liquids and gases, but are refracted when doing so.
What is the crust primarily composed of?
the crust is composed of oxygen, silicon, aluminum, iron.
It is also composed of Sedimentary, igneous, and metamorphic rock
What is the Mantle primarily composed of?
Peridotite
What is the physical state of the core?
the outer core is liquid, the inner core is under enough pressure to be solid
What is an S wave, and what is its behavior?
an S wave can only travel through solids, it is stopped by liquids or gasses
Which type of crust is the most dense, but least thick?
Oceanic Crust
What properties might describe the physical state of the mantle
Solid, but malleable like playdoh
What feature of the earth is generated in the core?
Magnetosphere
What is the Shadow Zone?
The area on the other side of an earthquake, where the seismic waves have all been refracted around
Which is found in the earths crust, the lithosphere or the aesthenosphere?
Aesthenosphere
Describe Convection / conduction and how its related to the Mantle