Convergent Boundaries
When the denser plate goes under the less dense plate and is returned to the mantle.
What is subduction?
Earthquakes and fault lines are the only features at this boundary.
What is a transform boundary?
This layer of the earth is broken into small pieces or sections that float on the asthenosphere.
What is the lithosphere?
Old ocean crust is recycled at what feature?
What is a deep-ocean trench?
This geologist is responsible for the development of the Seafloor Spreading hypothesis.
Who is Harry Hess?
SURPRISE BONUS (+200): In continental-continental convergent boundaries, this occurs instead of subduction.
What is collision?
Mid-ocean ridges are a prominent feature at this boundary.
What is a divergent boundary?
This solid layer is composed of iron and nickel.
What is the inner core?
New ocean crust is created at this feature.
What is a mid-ocean ridge?
This geologist is responsible for the development of the Continental Drift hypothesis.
Who is Alfred Wegener?
Trenches, islands, and volcanoes form at this boundary.
What is an oceanic-oceanic convergent boundary?
At this boundary, crust is neither created nor destoryed.
What is a transform boundary?
This liquid layer is responsible for the generation of the Earth's magnetic field.
What is the outer core?
DAILY DOUBLE (x2): As you move away from a mid-ocean ridge, this increases.
What is the age of the rock?
The term for evidence of ancient magnetism.
What is paleomagnetism?
What is a continental-continental convergent boundary?
At this boundary, new crust is created.
This type of crust is more dense than the other.
What is oceanic crust?
This is the proposed name for a supercontinent meaning "all lands".
What is Pangaea?
The driving force behind plate tectonics.
What are convection currents?
What is the older plate because of density?
A divergent boundary in the middle of a continent will produce this feature.
What is a rift valley?
Convection currents are located in this layer.
What is the asthenosphere?
These four pieces of evidence support Alfred Wegener's concept of Continental Drift.
What are fossils, rock records, fit of the continents, and climate data?
The tectonic plate that you live on.
What is the North American Plate?