Continental Drift
The scientist credited with the Theory of Continental Drift
Who is Alfred Wegener
The Theory of Seafloor Spreading suggests that new seafloor is being created at this geographic feature
What is the Mid-Atlantic Ridge
The two tectonic plates that interact at a subduction zone.
What are oceanic and continental plates
This type of rock forms when other rock melts, becomes magma, and then cools and solidifies.
What is igneous
This plate interaction produces frequent earthquakes
What is a transform fault
The first supercontinent that was identified
What is Pangaea
What are offshore trenches
The geographic feature produced when the oceanic plate melts and rises to the surface as magma
What are volcanoes
This type of rock forms when rocks are subjected to heat and pressure deep in the Earth or between tectonic plates
What is metamorphic
This type of plate interaction produces large mountains
What is (continental-continental) convergence
This evidence for continental drift is supported by the discovery of remains of similar organisms in South America and West Africa
What is fossil evidence
The geographic location where heated, bouyant (less dense) magma rises to form new seafloor
What is the Mid-Atlantic Ridge
The geographic feature that is produced where the oceanic plate is subducted by the continental plate
What are trenches
The processes that create sedimentary rock
What are compaction and cementation
This type of plate interaction is causing the seafloor to spread
What is a divergent fault
This evidence for continental drift is supported by the discovery of coal in Antarctica and glacial scars in Brazil.
What is paleoclimate data
The geographic locations where cooled, dense, seafloor sinks back into the mantle
What are offshore trenches
The type of plate interaction that produces subduction
This type of rock may have foliation (layers) and small crystals
What is metamorphic rock
Volcanoes would be found at these types of plate interactions
What are oceanic-continental convergence and divergence
An explanation for why the tectonic plates were moving
When heated __________ material rises and cooled ________ material sinks.
What are bouyant/less dense; dense
Why the oceanic plate is subducted by the continental plate
What is its density
This type of rock forms large crystals when it cools slowly.
What is intrusive igneous rock
This plate interaction produces tsunamis
An oceanic-continental convergence