01/25/2013
- Alfred Wegener came up with the theory of continental drift.
- He used the evidence of fossils and rock evidence to develop his theory.
01/30/2013
01/31/2013
Mapping the sea floor provides support for plate tectonics by showing the land forms.
02/12/2013
- Convergent continental/oceanic. Divergent boundaries
- Subduction is when one plate sinks under another.
02/13/2013
- Transform Boundary: The oceanic spreading ridge is transforming, which is causing a fault in the seafloor. (shearing)
- Divergent Boundary: The plates are moving apart, causing the magma to rise, and ridges to be formed.
- Oceanic/oceanic convergent Boundary: Subduction is being caused and a volcano will be formed. Also, there will be trenches too.
02/14/2013
1. Oceanic/Continental Boundary
2. Convection currents
9. Denser part goes down
13. Magma rises up
10. the crust is being destroyed
8. a trench
6. rift valley
2. Convection currents
9. Denser part goes down
13. Magma rises up
10. the crust is being destroyed
8. a trench
6. rift valley
02/19/2013
A: Divergent
B: Oceanic/Continental Convergent - Mountains
C: Subduction - Crust is being destroyed.
D: Oeanic/Oceanic Convergent - Volcanic mountains
B: Oceanic/Continental Convergent - Mountains
C: Subduction - Crust is being destroyed.
D: Oeanic/Oceanic Convergent - Volcanic mountains
02/20/2013
A valley is being formed. 205 ft