This term describes a boundary where two tectonic plates collide.
What is convergent?
100
This is the type of plate boundary most closely associated with large, spectacular mountain chains.
What is a convergent, continental-continental boundary?
100
This is the person who first championed the idea of continental drift along with contributing much of the best early evidence for this idea.
Who is Alfred Wegener?
100
This is the name of the ring surrounding the upper portion of the Pacific plate that is comprised of regions of volcanism.
What is the Pacific Ring of Fire?
100
This layer of our planet is entirely liquid.
What is the outer core?
200
This term describes a boundary where two tectonic plates move apart from one another.
What is divergent?
200
This is the type of plate boundary most closely associated with deep ocean trenches.
What is a convergent, oceanic-oceanic boundary?
200
This is one type of evidence we have which supports continental drift theory.
What is paleomagnetism, corresponence of fossil records, or the complimentary geometric fit of continents?
200
These are the zones where volcanoes typically form.
What are subduction zones?
200
This is the process which occurs as a result of subduction and involves mountain formation.
What is orogeny?
300
This is the general term for a crack or fracture in a tectonic plate.
What is a fault?
300
This is the type of plate boundary most closely associated with formation of new lithospheric material.
What is a divergent, oceanic-oceanic boundary?
300
This is the place on earth where alternating patterns of polarity exist which represent supportive evidence of continental drift.
What is the Mid-Atlantic Ridge (or mid-ocean ridges).
300
This type of volcano is the largest.
What is a shield volcano?
300
This is the characteristic which distinguishes minerals from rocks.
What is consistent molecular/chemical composition?
400
This is the layer beneath the lithosphere over which plates move.
What is the asthenosphere?
400
This is the type of plate boundary most closely associated with volcanic mountains on land.
What is a convergent, oceanic-continental boundary?
400
This technology first allowed for bathymetric (ocean floor) mapping following World War II.
What is SONAR?
400
This is the name of the layered igneous material out of which volcanoes are made.
What is pyroclastic material?
400
These are the names of the two prehistoric land masses which collided to form the Appalachian Mountain chain.
What are Laurasia and Gondwanaland (Gondwana)?
500
This is the process which fuels plate movement.
What is convective heating (convection)?
500
This is the type of plate boundary most closely associated with strike-slip faulting and intense earthquakes such as those which occur in southern California.
What is a transform boundary?
500
This is the name of the dinosaur which provides strong evidence for continental drift with fossils occurring only at the southern tip of South America and Africa.
What is Mesosaurus?
500
This is the type of largely andesitic lava flow which is jagged when it cools and would be painful to walk on. (It is also the sound you would probably make if you tried).
What is an Aa flow?
500
This is the approximate time period during which Pangea existed and when the Appalachian Mountains were formed.