Pangaea
Who created the theory of Pangaea?
Alfred wegener
What are the three types of plate boundaries?
Divergent, Convergent, Transform
What is the definition of weathering?
Wears or breaks down rocks and minerals.
What is a fossil?
The trace or remains of a organism that lived long ago, Most commonly preserved in sedimentary rock.
What is a constructive force?
A constructive force is a process that raises or builds up the surface features of the Earth.
What is some evidence of Continental drift?
Jigsaw fit of the continents, fossil remains, rock sequence, glacial flow
What are Convergent plate boundaries?
A convergent boundary is an area on Earth where two or more plates collide. One plate eventually slides beneath the other, a process known as subduction
What is the definition of Erosion?
The movement of sediments from one place to another.
What is superposition?
Younger rocks lay above older rocks if the layers have not been disturbed.
What is a Destructive force?
The process of breaking down rocks and land due to forces.
Were did Alfred wegener die?
Greenland
What can Divergent plates form?
Divergent plates can form deep sea trenches, Earth quakes, ocean vents, or create new seafloor
What is the definition of deposition
Depositing sediment in a new spot or location
What is relative dating?
Any method of determining whether an event or object is older or younger then other events or objects.
Which is not a constructive force?
Volcanic eruptions, Acid rain, Sand storms
Acid rain
What does Pangaea mean?
All the earth
How is a geyser formed?
Convergent Boundaries, Divergent Boundaries, or Hot Spots. Water seeps through cracks in surface rocks. These "pipes" can reach a depth of about 3 miles.
Which of the forces do not cause erosion?
Ice, Rusting, Water, Wind, Gravity
Rusting and gravity
What is an index fossil?
A fossil that is found in the rock layers of only one geologic age and is used to establish the age of the rock layers. Is found in rock layers around the world.
Ex. Trilobite
What is the difference between constructive and destructive forces?
Destructive Forces break down features on the Earth's surface. Constructive Forces build up features on the surface of the Earth.
How long did it take for Pangaea to split?
30 million years - 120 million years.
What are transform boundaries?
Transform boundaries are places where plates slide sideways past each other.
What are two forces of Weathering?
Wind and water
Older layers are found were?
Older layers are found beneath the new layers
Which is not a destructive force,
Floods, Earth quakes, Deposition
Deposition