Forces that Shape the Earth
A force that acts on rock to change its shape, volume, or adds potential energy until the rock changes shape or breaks
What is Stress?
This scientist discovered continental drift theory
Who is Wedgner?
This scientist discovered the Theory of Plate Tectonics
Who is Wilson?
What is Foreshock?
This type of volcano is know for having broad, gently sloping mountain shape that resembles a warrior's shield
what is shield volcano?
the different types of stress
What are tension, compression, & shearing?
This scientist discovered the theory of seafloor spreading
Who is Hess?
This type of crust is denser than the other, causing one to subduct underneath.
What is oceanic crust?
When energy is released due to a vibration in the earth's crust, it is called this type of movement.
What is Earthquake?
This type of volcano is a tall, cone shaped mountain in which layers of lava alternate with layers of ash
what is composite volcano?
the type of stress that can cause rocks to fold or break
what is shearing?
this new technology helped scientists map out the seafloor
What is SONAR?
This type of geological features forms when an oceanic tectonic plate is slowly subducted beneath a continental tectonic plate
What is ocean trench?
This scale measures earthquakes by the amount of energy, or moment magnitude, that occurs along a fault.
What is Richter?
This type of volcano is built from ejected lava fragments that harden in the air and fall around a vent, creating a steep-sided slope
What is Cinder Cone Volcano?
the following are examples of landforms created by this type of stress: Mid-ocean ridge & Continental Rifts
what is tension?
- Matching Fossils
- Matching Rocks & Structures
- Continental Puzzle
What is Theory of Continental Drift?
During this plate motion, gravity pulls the dense oceanic lithosphere back down into the deep mantle
What is slab-pull?
The type of energy released from earthquakes
seismic waves
This long belt of volcanoes circle much of the Pacific Ocean
these landforms are made from this type of stress: Mountain Ranges & Ocean Trenches
What is Compression?
Although new ocean floor is constantly being added at the mid-ocean ridges, our planet is not growing larger. What does our planet do to accommodate this?
What is older portions of the ocean floor return to the mantle in the process of subduction?
This mountain range is the result of a convergent boundary between two continental plates
What is the Himalayan Mountain Range?
During this type of boundary, earthquakes are frequent due to the plates being pushed parallel and in opposite directions.
What is transform boundary?
This phenomena creates islands, like Hawaii, in the middle of a large tectonic plate with many volcanoes
What is hot spot?