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Ch. 5
Continental Drift
| Question | Answer |
|---|---|
| What is the type of tectonic plate boundary involving a collision? | convergent boundary |
| What is the type of tectonic plate boundary that sometimes has a subduction zone? | convergent boundary |
| The San Andreas fualt is an example of what type of boundary? | transform boundary |
| What is the type of fault where the hanging wall moves down? | normal fualt |
| Mid-ocean ridges are found at what type of boundaries? | divergent |
| What do fossils on seperate continents indicate? | the continents were once connected |
| What causes the movement of tectonic plates? | convection current |
| Which layer is divided into tectonic plates? | lithosphere |
| What type/s of crust make up the North American plate? | continental and oceanic |
| What is the name of the ancient supercontinent that contained all of the landmasses? | Pangaea |
| What is the name of the ancient sea thta surrounded the ancient landmass? | Pathalassa |
| What are the names of the two continents that the supercontinent broke into? | Luarasia and Gondwang |
| What is the name for the process of hot material rising nad cool material sinking? | convection current |
| Two tectonic plates slide past one another horizontally at what boundary? | transform |
| Two tectonic plates move away from one another at what boundary? | divergent |
| What type of fualt is it where the haging wall moves up? | reverse |
| Deep ocean trenches are formed at what type of boundary? | convergent |
| What process creates new oceanic lithosphere? | sea spreading |
| What are underwater mountainchains called? | mid-ocean ridges |
| What is the theory that Earth's lithosphere moves around called? | plate tectonics |
| What is the surface along which rock breaks and moves called? | fualt |
| Identify the three types of fualts. | normal, reverse, strike-slip |
| What is an ocean trench? | underwater canyons where the oceanic crust bends downwards. in a pricess taking millions of years, parts of the ocean floor sinks back into the mantle at deep-ocean trenches |
| What is a subduction zone? | the process by which the ocean floor sinks beneath a deep-ocean trench and back into the mantle again |
| What is sea-floor spreading? | it adds more crust to the ocean floor while older peices of rick move outward from either side of the ridge. |
| What is a mid-ocean ridge? | they form long chains of mountains that rise up from the ocean floor |
| What is a convergent boundary? | plates that come together or converge |
| What is a divergent boundary? | plates that move apart or diverge from each other |
| What is a transform boundary? | plates that slip past each other |
Created by:
sadie.lorraine
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