Plate Tectonics - Earthquakes- Volcanoes - Folded Mountains Flashcards
The motion of P Waves
Push and Pull
The motion of S Waves
Side to Side or Up to Down
What material can P Waves travel through? (3)
Solid, Liquid, and Gases.
What material can S Waves travel through? (1)
Solids (You can remember this because they both have an S in their name)
What is an epicenter?
A point on the earth’s surface directly above the focus
What is a Focus?
Actual location, at or below Earth’s surface where the earthquake occurs
What is a Richter Scale?
Numerical scale for expressing magnitude of an earthquake
What is a Seismometer?
A device scientists use to measure an earthquake
What is a fault?
A break in the rocks that make up the Earth’s crust
What is a Transform Fault?
A fault zone where two plates slide past one another horizontally
Who was Alfred Wegner?
A German scientists who theorized Continental Drift, Plate Tectonics, and Pangea
What is the Eruptive violence of a Stratovolcano or Composite Volcano?
Not explosive
Eruptive violence of a Shield Volcano?
Low explositivity (unless water gets in vent)
Eruptive violence of a Cinder Cone Volcano?
Small eruptions
Eruptive Violence of a Caldera Volcano?
Earth shaking eruptions
