Oceanography The Seven Seas LARGESTONE WORLD OCEAN PANTHALASSA.

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Presentation transcript:

Oceanography The Seven Seas LARGESTONE WORLD OCEAN PANTHALASSA

PACIFICATLANTICINDIAN ARCTIC Let’s start with the 4 oceans…

…and make some comparisons. PACIFICATLANTIC INDIAN ARCTIC kilometers

10 km 3 10 X 10 X 10 = 1000 cubic km

Enough water to fill...25… How much water is 1 million km 3 ? 25,000,000,000, trillion Tahoma pools

MEMORIZE THESE NUMBERS!!

35% 18% 14% 3% = 70% 4000m (2.5 miles) 1300m 2000m 10,000m 10,100m11,000m

PACIFIC Named by Magellan it is the biggest, oldest, deepest & it is shrinking. Marianas Trench Challenger Deep 11,035m (35,802’ or 7 miles) World’s TALLEST mt Hawai’i (Big Island) Mauna Loa 7 km!! (Everest 3K, Rainier 4.5K) Source of the Ocean VOLCANOES! Biggest volcano in solar system; Tamu Massif Largest structure built by any living thing Great Barrier Reef

ARGINAL SEAS South China Yellow Sea of Japan Sea of Ohkutsk Sea of Cortez Bering Sea Coral Sea Bering Sea Coral Sea

ATLANTIC At 150 MY it is the youngest ocean & it’s growing (fingernails) Puerto Rico Trench 10,100m World’s longest mt range the Mid-Atlantic Ridge ICELAND North Sargasso Sea The only sea-within-a-sea

INDIAN The only ocean with MICROCONTINENTS it is also growing (mid-Indian Ridge) The only ocean with a current… that REVERSES every 6 months!? Deepest pt Java Trench 10,050 Arabian Red

ARCTIC shallowest Wasn’t until 1957 that the world’s first nuclear submarine, the Nautilus, proved the North Pole wasn’t sitting on a continent (like the south)…that an OCEAN lay beneath the ice. After traversing the polar ice cap, the Nautilus completed its TOP SECRET mission: to enter Soviet waters and attempt to penetrate naval installations UNDETECTED…stealth mode.

ANTARCTIC “the Southern Ocean?” The only place where the ocean flows around the earth UNOBSTRUCTED Weddell The only place where the ocean flows around the earth UNOBSTRUCTED

MEDITERRANEAN – only a 1m tide, MAX DEPTH = 5700m Strait of Gibralter BLACK - NO tide, MAX DEPTH = 500m, upper 100m is fresh water CASPIAN TETHYS On a side note… MEDI – TERRA -- NEAN translated from ancient Greek means MIDDLE -- EARTH

CARIBBEAN – max depth 8000m, heats Gulf Stream aka AM MED 90