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GLOBAL Ocean

GLOBAL Ocean. 72% of Earth’s surface. Arthur C. Clarke. “How inappropriate to call this planet Earth, when clearly it is Ocean.”. 97% of all the water on Earth. Pacific Ocean. Largest, deepest oldest ocean Cover 1/3 rd of Earth’s surface Average depth- 4.3 km

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GLOBAL Ocean

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  1. GLOBAL Ocean

  2. 72% of Earth’s surface

  3. Arthur C. Clarke • “How inappropriate to call this planet Earth, when clearly it is Ocean.”

  4. 97% of all the water on Earth

  5. Pacific Ocean • Largest, deepest oldest ocean • Cover 1/3rd of Earth’s surface • Average depth- 4.3 km • Natural resources: oil, gas, metal nodules, sand, gravel , fish • Over 25 000 islands

  6. Pacific Ocean

  7. Pacific Ocean • Deepest sea floor in the world • 10 911 meters • Deep sea trench for by the plate tectonic movement called SUBDUCTION

  8. Atlantic Ocean • 2nd largest, youngest ocean • Contains oil, gas, placer deposits, sand , gravel, precious stones, metal nodules, placer deposits, fish marine mammals • Icebergs a natural hazard • Piracy occurs

  9. Atlantic Ocean • Puerto Rico trench is the deepest part, 8 650 meters deep • Many rivers flow into the A.O. • Few islands

  10. Atlantic Ocean Also known for: • Broadest continental shelf • summer and fall hurricanes • The Bermuda Triangle • The Mid- Atlantic Ridge • The shipwreck of the Titanic

  11. Indian Ocean • 3rd largest , warmest, saltiest ocean • Natural resources include oil, gas, fish ,shrimp, sand, gravel, placer deposits, metal nodules • High risk of piracy • Known for strong, shifting monsoonal flow of wind and water

  12. Indian Ocean • Deepest part is the JAVA Trench, 7 258 m deep

  13. Southern Ocean • Runs from the coast of Antarctica to 60⁰S • Very deep, between 4000 – 5000 m • Large and possible giant oil and gas fields, Mn nodules, sand, gravel, squid, whales, seals, krill

  14. Southern Ocean • South Sandwich Trench is the deepest part, 7235 meters • Huge icebergs

  15. Arctic Ocean • Smallest ocean • Natural resources include sand, gravel, placer deposits, oil , gas, placer deposits, metal nodules, fish, marine mammals • Fragile ecosystem • Thinning ice

  16. Arctic Ocean • mostly ice covered • Mainly surrounded by land • Shallowest ocean • Many icebergs

  17. SEAS • A large body of salt water, smaller than an ocean that may be partly or nearly surrounded by land • Examples: Sargasso Sea Caribbean Sea Mediterranean Sea • Pencil in # in green

  18. GULFS • An area of water bordering on and lying within a curved coastline, usually smaller than a SEA but larger than a BAY • Examples : Gulf of Mexico Gulf of Alaska Persian Gulf • Pencil in # in orange

  19. BAYS • An INLET of the OCEAN or part of the OCEAN bordering on land and partly surrounded by land • Examples : Chesapeake Bay Bay of Bengal Hudson Bay • Pencil in # in red/pink

  20. STRAITS • A passageway of water connecting two large bodies of water • Examples: English Channel Davis Strait Korea Strait • Pencil in # in purple

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