Review of plate boundaries:
1)DIVERGING PLATE BOUNDARY
l MID OCEANIC RIDGES
l RIFT VALLEYS
l VOLCANOES
l EARTHQUAKES
l Ex: mid Atlantic Ridge and African rift valley
2) CONVERGING PLATE BOUNDARY
l DEEP OCEANIC TRENCHES
l SUBDUCTION ZONES
l EXTREME CONTINENTAL MOUNTAIN BUILDING
l Ex: Marianas Trench, Peru-Chile Trench, Himilayan mountains
Oceanic VS. Continental: Peru-Chile Trench: deep water and Andes Mountains
Andes Mountains:
Oceanic VS. Oceanic:Marianas Trench in Pacific: very deep water
Japan Trench fissure at 6200 m.
Continental VS. Continental:Himilayas: extreme mountains
3) TRANSFORM BOUNDARIES
l LONG FAULT LINES
l EXTREME EARTHQUAKES
l Ex: San Andreas Fault
4) SPECIAL “HOTSPOTS”
l Caused by hotspots in the aesthenosphere, volcanoes can appear even in the middle of a plate. As the plate moves slowly, one hotspot can create a chain of volcanoes. Best example is the Hawaiian island arc.
WORLD TECTONIC HOTSPOTS-Activity
1. Marianas Trench
2. Japan
3. Hawaii Islands
4. Pacific N.W., Cascade Volcanoes
5. San Andreas Fault
6. Peru-Chile Trench
7. Mid Atlantic Ridge, Iceland
8. African Rift Valley
9. Himilayan Mountains
10. Aleutian Islands
11. Java Trench
A) I have provided you with 7 out of 11 locations below. Match the locations above with the letters below. Find the remaining four locations and label them on the map below using your own letters.
B) Create a powerpoint or booklet that accomplished the following tasks for all 11 locations:
· An image showing the location/or a map location (11 marks)
· Describe the type of tectonic process taking place (i.e. divergence, convergence-be specific here, is it oceanic vs. continental etc.-Try your best!) (22 marks)
· Describe which plates are involved in the process. (i.e. Arabian plate pushing up against the Eurasian plate) (11 marks)
· If you have downloaded the Review online, check it out it might help you!
· Total value: 44 marks