Dating Methods
Correlation
Plate Tectonics
Plate Boundaries
Seismic Events
100
This dating method provides a specific age.
absolute dating
100
This kind of fossil helps to date the rock layer in which it is found.
index fossil
100
This hypothesis states that the continents have shifted position over time.
continental drift
100
The San Andreas Fault is an example of this type of plate boundary.
transform boundary
100
This scale measures the intensity of earthquakes.
Richter scale
200
This dating method dates an object with respect to other materials, but not with a specific age.
Relative dating
200
This Law says that higher layers are younger and lower layers are older.
Law of Superposition
200
This supercontinent existed around 200 million years ago.
Pangaea
200
Strong earthquakes and volcanoes are common along this type of plate boundary.
convergent boundary
200
The Ring of Fire, home to several volcanoes, is located around the _____ Ocean.
Pacific
300
Two atoms with the same number of protons but a different number of neutrons
isotopes
300
This Principle states that rock layers form in flat layers.
Principle of Original Horizontality
300
The shapes of these two continents provide evidence for continental drift.
South America and Africa
300
Seafloor spreading is associated with this type of plate boundary.
divergent boundary
300
When moving through deep, open ocean, tsunami waves are _____ (big/small).
small
400
The time it takes for half of a radioactive material to decay
half-life
400
Which layer is youngest?
I
400
Unlike the actual North and South poles, these poles shift position with time.
magnetic poles
400
When an oceanic and continental plate converge, the denser ___ plate submerges under the Earth's surface.
oceanic
400
Volcanoes can form away from plate boundaries, above these sub-surface features.
hot spots
500
If a material's half-life is 5,000 years and 1/8 (12.5%) remains, how many years have passed?
15,000 years
500
Which feature is older, A or G?
A
500
Former magnetic fields are recorded in new rock created via ____ _____.
seafloor spreading
500
This type of boundary does not usually lead to new land being formed.
transform boundary
500
The Himalaya Mountains are an example of this type of convergent plate boundary.
land-land