15.) The Red Sea is an example of what kind of boundary?
100
It tells us that magnetic reversals have occured in the past.
21.) What does paleomagnatism of the ocean floor tell us?
200
The super continent Wegner named as part of his Theory of Continental Drift. The name means "all lands" in greek
What is Pangaea
200
seven plates
How many plates is the lithosphere divided into?
200
Transform Boundary
9.) What boundary is the San Andreas fault and example of?
200
An area where one plate is pushed under another plate and is recycled back into the mantle.
16.) What is a subduction zone?
200
The magnetic ocean floor stripping pattern tells us that the magnetic poles have switched in the past.
23.)What does the magnetic stripping pattern on the ocean floor tell us about the earth's magnetic field?
300
Evidence which support this theory include climate, fossils, and landforms
3.) What is The Theory of Continental Drift
300
The crust, lithosphere, and the upper part of the mantle
8.) What makes up a tectonic plate?
300
These are formed when a plate starts to pull apart in the first stage of divergent boundary formation.
11.) How are rift valleys produced?
300
They are associated with convergent boundaries
17.) What boundary is associated with deep ocean trenches?
300
Hot Spots
24.) What formed the Hawaiian Islands?
400
Wegner could not explain how the continents moved.
Why was the Theory of Continental Drift Rejected?
400
Heat from radioactive decay in the core heats up the bottom of the mantle making part of the moulten rock rise towards the crust where it cools and then falls back towards the core.
25.) What causes convection to occur in the mantle?
400
The plates come together
12.) Describe what happens at a convergent boundary?
400
Convergent Boundaries destroy it.
19.) What boundary typ destroys oceanic crust?
400
Mountains
26.)What features are formed in continent to continent convergent boundaries?
500
Some continents were warmer and were located closer to the equator, while others had evidence of glaciers and were located closer to the poles
Evidence about climates indicate what about the continents when Pangaea was in existance?
500
magma riseing to the surface, cooling, and forming rock.
27.) What creates new ocean crust?
500
Midocean ridge, pillow basalt, basaltic volcanics
14.) What features are found at a divergent boundary between two oceanic plates?
500
oceanic-oceanic convergence creates volcanic island arcs
20.)Which plate boundary are volcanic island arcs formed at?
500
The Antartic plate was located closer to the equator
28.) If the anchient remains of tropical plants are found in Antartica; what could explain how they existed there?