Continental Drift
Wegener's continental drift was rejected because this energy is too weak to move continents
Tidal energy
The asthenosphere is composed of rock akin to this
Play Doh
Scarring due to movement along a transform plate boundary
Fracture zone
Oceanic-oceanic convergence creates these volcanic features
Volcanic island arc
Chain of volcanic structures formed as plates move over a hot spot
Hot spot track
This fossil reptile (and geological records) match across separated continents
Mesosaurus
Unlike continental drift, plate tectonics include movement of these plates
Oceanic plates
Divergent plate boundaries are known as these systems in the ocean
Oceanic ridge system
Addition of hot water from wet, subducted material generates this melting, creating volcanoes
Partial melting
Subduction force moving the plate
Slab pull
These two continents seem to fit well together like puzzle pieces
Africa and South America
These are irregular segments of the lithosphere in motion
Lithospheric plates
Type of plate boundary where two plates move past one another
Transform
Continental-continental convergence pushes plates up to form these
Tall mountains
Deep ocean drilling verified this at divergent boundaries
Seafloor spreading
The continents once existed as a single landmass, a supercontinent named this, which drifted apart
Pangaea
Located beneath the lithosphere and composed of malleable rock
Asthenosphere
Type of plate boundary where two plates move towards each other
Convergent
Oceanic-continental convergence creates these on continents
Continental volcanic arc
What sort of stripes radiate from a spreading center?
Magnetic reversal stripes
This German scientist (1880-1930) was first to propose the theory of continental drift
Alfred Wegener
The crust and upper mantle constitute this rigid layer
Lithosphere
Type of plate boundary where two plates move apart
Depressions formed where one plate subducts another at convergent boundaries
Deep-ocean trench
Plates move over these stationary surface expressions of mantle plumes
Hot spot