Seismic Waves
_____________ waves move through the Earth's interior.
What are body waves?
A method for determining earthquake epicenter.
What is triangulation?
This layer is the thinnest compositional layer.
What is the crust?
This magma class is used to describe oceanic crust and low viscosity conditions.
What is mafic?
This waves moves fastest through the Earth's interior.
What are P-Waves?
This scale is often used to determine the magnitude of an earthquake.
What is the Richter Scale?
This mechanical layer encompasses the the crust and small portion of the mantle. It is broken into plates.
What is the lithosphere?
This magma class is used to describe continental crust and high viscosity conditions.
What is felsic?
A change in ____________ or _____________ can slow seismic waves.
What is density and composition?
To use triangulation, you need ______ seismograms.
What is 3?
This layer is liquid.
What is the outer core?
This magma type is associated with effusive eruptions.
What is basaltic?
P-waves change ______________ or ____________ when they encounter different material densities.
What is speed and direction?
These waves arrive at seismic stations first.
What are P-waves?
This layer is responsible for Earth's magnetic field.
What is the outer core?
This melting type can occur at any subduction zone, both oceanic and continental.
What is flux melting?
A model of Earth shows a large shadow zone associated with S-Waves because...
What is the "outer core is liquid and S-waves cannot move through liquids"?
These waves arrive at seismic stations second.
What are S-waves?
This compositional layer contains the large scale convection currents that move tectonic plates.
What is the mantle?
A composite volcano is located in the middle of a continental plate. It's eruption will most likely be.....
What is explosive?