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8Sci_Ocean Floor
Oceans, Ocean Floor & Acid Base Chemistry of the Ocean
| Question | Answer |
|---|---|
| Where is the Continental Shelf? | it begins at the shoreline and slopes gently towards the open ocean. Depth can reach 200M |
| Where is the Continental Slope? | it begins at edge of continental shelf and continues down to the flatest part of the ocean floor |
| What are ocean trenches? | hugh cracks in the deep ocean basin where tectonic plates collide and old ocean crust is recycled deep into the earth |
| What is a seamount? | submerged volcanic mountain formed by magma pushing through or between tectonic plates |
| What is sonar technology based on? | the echo-ranging behavior of bats |
| Where is the deepest part of the ocean? | the ocean trenches |
| What is recycled at ocean trenches? | old lithosphere |
| What is sonar technology used for? | mapping the sea floor |
| What is bathymetry? | a measure of the depth of oceans, lakes or rivers |
| What is created along mid-ocean ridges near the middle of ocean basins? | new lithosphere |
| What type of instrument would scientists use to study the ocean depths? | submersible |
| What is the mid-ocean ridge? | mountain chains where tectonic plates pull apart. New ocean crust forms here |
| Where does a rift valley form? | it forms between mid-ocean ridges |
| What is an abyssal plain? | a broad, flat part of deep ocean basin with an average depth of 4000 meters |
| Where is the continental rise? | at the base of the continental slope and is made of large piles of sediment |
Created by:
masonteach
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