1. Oceans and Ocean Floor Structures

3. There are four oceans 1.Atlantic a.Named after the continent that sank b.Getting larger

4. There are four oceans 1.Atlantic a.Named after the continent that sank b.Getting larger 2.Pacific a.Largest feature on Earth b.Getting smaller

5. There are four oceans 1.Atlantic a.Named after the continent that sank b.Getting larger 2.Pacific a.Largest feature on Earth b.Getting smaller 3.Indian a. By India b. Very active geologically

6. There are four oceans 1.Atlantic a.Named after the continent that sank b.Getting larger 2.Pacific a.Largest feature on Earth b.Getting smaller 3.Indian a. By India b. Very active geologically 4.Arctic a. Smallest, some say it is only a sea

7. Pacific is largest Atlantic is next largest Indian is pretty big Arctic is smallest

9. Oceanography is the study of the ocean The Challenger (British) kind of started the whole thing in 1872.

10. Underwater Research is usually done with SUBMERSIBLES Bathysphere is one that is held by a cable, and just kind of dangled from a ship

11. Underwater Research is usually done with SUBMERSIBLES Bathysphere is one that is held by a cable, and just kind of dangled from a ship Bathyscaph is self-propelled

12. SONAR is ofted used to measure depth of ocean floor. Sound Navigation And Ranging

17. Ocean floor has two parts Continental Margin 1.Shallow 2.Made of continental crust (granite) Deep Ocean Basin 1.Deep 2.Made of oceanic crust (basalt)

18. Continental Margin 1.Not the shoreline 2.Starts at the shoreline with the continental shelf a.Slopes very gently b.Very wide in some places (Florida) c.Very narrow in others (Oregon) d.Often exposed during ice ages

20. Continental Margin 1.Continental Shelf 2.Continental Slope a.Much steeper than the continental shelf b.Contains Submarine Canyons c.Experiences Turbidity Currents

21. Continental Margins 1.Continental Shelf 2.Continental Slope 3.Continental Rise a.Gentle slope to ocean floor b.Made of sediment from the Continental Shelf and Slope

23. Deep Ocean Basin 1.Trenches a.Made from subducting oceanic crust b.Deepest part of the Earth c.Location of HUGE earthquakes

24. Deep Ocean Basin 1.Trenches 2.Abyssal Plains a.Flattest parts of the Earth b.Deep c.Very fine “mud”

26. Deep Ocean Basin 1.Trenches 2.Abyssal Plains 3.Mid-Ocean Ridges a.Longest mountain range on Earth b.Result of splitting of the Earth’s crust c.Comes up to land in Iceland d.Topped by a rift.

27. Deep Ocean Basin 1.Trenches 2.Abyssal Plains 3.Mid-Ocean Ridges 4.Seamounts a.Isolated Island (like Hawaii) b.Can become flattened by waves i.Called a guyout if it is below water ii.Named after a friend of the guy who discovered them.