Convergent Boundaries
When one plate moves under another due to relative density.
What is subduction?
A divergent boundary on a continent will form this.
What is a rift valley?
The only liquid layer of the earth, responsible for the magnetic field.
What is the outer core?
SURPRISE BONUS (+200): In Seafloor Spreading, new crust is made at this feature while old crust is recycled at this feature.
What are mid-ocean ridges and deep-ocean trenches?
The term for evidence of ancient magnetism.
What is paleomagnetism?
Island arcs, trenches, and volcanoes form here.
What is an oceanic-oceanic convergent boundary?
Developed divergent boundaries that create new seafloor are called this.
What are mid-ocean ridges?
The largest layer of the Earth (by composition).
What is the mantle?
These two geologists are responsible for the development of the Continental Drift Theory and the Seafloor Spreading Theory, respectively.
Who are Alfred Wegener and Harry Hess?
DAILY DOUBLE (x2): This theory proposes that the lithosphere is broken into fragments that float along the asthenosphere, driven by convection currents.
What is the Tectonic Plate Theory?
Non-volcanic mountains form here.
What is a continental-continental convergent boundary?
All boundaries share this feature.
What are earthquakes?
This layer of the earth is composed of the crust and upper mantle. It floats along the asthenosphere creating tectonic plates.
What is the lithosphere?
This increases as you move farther away from a mid-ocean ridge.
What is the age of the rocks?
These drive the movement of plate tectonics.
What are convection currents?
Continental-continental convergent boundaries undergo this process.
What is collision?
This occurs to crust at a transform boundary.
What is nothing (neither created, nor destroyed)?
This layer of the earth is composed of solid nickel and iron.
What is the inner core?
When comparing continental crust and oceanic crust, this crust is older.
What is continental crust?
The earth can be divided into these three layers based on their composition.
What are the crust, mantle, and core?
This plate subducts at an oceanic-oceanic convergent boundary because of this property.
What is the older plate because of density.
The primary features (two) of a transform boundary.
What are earthquakes and faults?
These form in the mantle of the Earth, drive tectonic plate movements, and are the result of this property.
These four pieces of evidence supported Wegener's concept of Continental Drift.
What are the fit of the continents, fossils, rock records, and climate data?
The earth can be divided into these five layers based on properties.
What are the lithosphere, asthenosphere, mesosphere, outer core, and inner core?