Seismic Waves Flashcards
It is a solid that can undergo permanent deformation without breaking
Plasticity
What is the reason for the movement of tectonic plates
Convection currents
What is slab pull
Lithosphereic plates that move away from the mid-ocean
This is a lithospheric plate that moves away mid ocean
Slab pull
Lithosphere thickens with distance away from mid-ocean ridge
Ridge push
What influences the movement of plates
Driving and resisting forces
What are driving forces
Pull or push plates
What are resisting forces
Act against driving forces
How did scientists study the earths interior
By seismic waves
What are the 2 types of seismic waves
Primary and secondary waves
What are body waves
They pass through inner layers of the earth
What passes through the inner layers if the earth
Body waves
What is primary waves
It passes through solid and liquid and are compressional waves.
This is felt uo and down in motion and it does not travel through liquids (Tranverse waves)
Secondary waves
Same motion as s waves with no vertical displacement
Love waves
Also known as ground roll
Rayleigh waves