Download - Evidence supporting Continental Drift
Evidence supporting Continental Drift
What is missing….Continents are MASSIVE
• Continents DO NOT float on the ocean
• Unless the whole 8th grade girls basketball team has turned into superheroes overnight …pushing the continents around…
What force can move a continent?!?
DIVERGENT BOUNDARIES
Divergent Boundaries The place new lithosphere is
made.
Mid-Ocean Ridge
Mid Ocean RidgeOlder oceanic crust pushed out of the way by magmaMagma cools to make sliver of NEW oceanic crustprocess is called SEA-FLOOR SPREADING
Age of oceanic crust
Iceland – evidence of Divergent Boundary above sea level
How do divergent boundaries cause convergent
boundaries?
Fence for Sheep in California
1906 California Earthquake
More Damage, California 1906The photo isn’t crooked, the buildings are
Aerial view of San Andreas fault, Point Reyes, CA
Another transform boundaryEarthquake damage in Gölcük, Turkey
2002
Putting it all together!