History
The man responsible for the idea of Continental Drift
Who is Alfred Wegener?
The direction the seafloor moves from the boundary
What is outwards?
Boundaries are found between these.
What are tectonic plates?
The supercontinent proposed by Wegener
What is Pangaea?
These are caused by Fault Lines
What are earthquakes?
What Harry Hess used sonar for
What is mapping the ocean floor?
The location of magma for a mid-ocean ridge?
What is the mantle?
What are divergent, convergent, and transform?
Outermost layer of solid rock
What is the lithosphere?
What Continental Drift was lacking when Alfred Wegener proposed it.
What is a mechanism/how?
The mechanism to Alfred Wegener’s Continental Drift
What is Seafloor Spreading?
The significance of rock on both sides of the ridge (not a type of evidence)
What is symmetry?
Where fault lines occur
What are transform boundaries?
Has a why but no mechanism
What is a hypothesis?
The crust that is the densest and contains higher concentrations of basalt
What is oceanic crust?
Alfred’s profession/job
What is a paleo climatologist, geologist or arctic explorer?
Harry Hess’s profession
What is Naval officer/geologist
An example we used for oceanic vs. oceanic convergent boundaries
What are the Mariana Islands?
Minerals in cooking magma align themselves to north, alternating in different bands of rock
What is magnetic striping?
The formation at Continental vs Continental divergent boundaries
What are rift valleys?
Alfred’s four evidences
What are Mountain, Fossil, Climate and Geometric?
The two evidences of seafloor spreading
What are magnetic striping and age of ocean rocks?
The two things that always happen at every convergent boundary
What are subduction zones and mountainous features?
Driving force of plate movement from the mantle
What is convection?
The war that prompted Harry Hess to continue Wegener’s work.
What is World War 2?