Layers of Earth
The moving together or colliding of tectonic plates is called _____________ _______________?
Convergent Boundary
The theory of continental drift was proposed by ________ ___________.
Alfred Wegener
Salisbury NC is located in which geological region.
What is Piedmont?
The moving apart or separating of tectonic plates is called _____________ _______________?
Divergent Boundary
Theorize: What Mountian Chain runs to NC and determine the tectonic activity that created it.
Blue Ridge/Appalachian/Smokey Mountains, Continental Continental convergence.
The study of paleomagnetism was key in proving Wegener’s hypothesis because
it provided evidence of sea-floor spreading. Magnetic magnetism in rocks.
The outer core of earth is: a. gaseous b. solid c. liquid d. thick liquid
d. thick liquid
Where do most earthquakes occur?
at the edges of plates or transform plate boundaries
The sliding past of two tectonic plates is called _____________ _______________?
Transform Boudary
Determined that the seafloor was spreading by using Naval Sonar tools.
Who is Henry Hess?
An undersea mountain range that forms at a divergent boundary.
What is a ridge?
Name two effects of a continental plate and oceanic plate converging.
Earthquakes and volcanoes
An underwater mountain chain that formed by sea-floor spreading is called a
What is a mid-ocean ridge?
Which of the following was a weakness of Wegener’s proposal of continental drift when he first proposed the hypothesis?
He couldn't explain what was strong enough to move the continents.
DOUBLE JEOPARDY! What events occur in the asthenosphere causing the magma to circulate?
Convection Currents
Double Jeopardy: What are the three stress types related to plate boundaries?
Tension, Shearing, Compression
An example of a transform boundary is the
San Andreas Fault in California.
Convection and slab pull work together to produce ___________. (hint: was Wegener's missing link.)
Seafloor Spreading