NOTES: The Seven Seas

OceanographyThe Seven Seas LARGEST ONE WORLD OCEAN

PANTHALASSA

PACIFIC ATLANTICINDIAN

ARCTIC

Let’s start with the 4 oceans…

…and make some comparisons.

PACIFIC ATLANTIC INDIAN ARCTIC

kilometerskm3

cubic meter

1000 m = 1 km

10 km3

10 km3

10 km3

10 X 10 X 10 = 1000 cubic km

1000 X

ONEMILLION

CUBICKILOMETERS

MORE THAN TRIPLE

THE VOLUME OF THE1980 ERUPTION

Enough water to fill...25…

How much water is 1 million km3?

TRILLION25,000,000,000,00050 trillion

Tahoma pools

714 337 284 13

MEMORIZE THESE NUMBERS!!

!?

35% 18% 14% 3%

35 + 18 + 14 + 3 = 70%

4000m (2.5 miles) 1300m2000m10,000m10,100m11,000m

More than 7 miles

PACIFIC

Named by Magellan it is thebiggest, oldest, deepest & itis shrinking.

Marianas TrenchChallenger Deep11,035m(35,802’ or 7 miles)

* *World’s TALLEST mtHawai’i (Big Island)Mauna Loa 7 km!!(Everest 3K, Rainier 4.5K)

Source of the OceanVOLCANOES!

Biggest volcanoin solar system;Tamu Massif

Largest structure built byany living thing

Great Barrier Reef

Seas of the Pacific

ARGIN

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Sout

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Yello

wSe

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Japa

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Sea o

fOhk

utsk

Sea of Cortez

Bering Sea

Coral Sea

Bering SeaCoral Sea

ATLANTIC

At 150 MY it is theyoungest ocean & it’sgrowing (fingernails)

Puerto RicoTrench10,100m

World’s longest mt range

the Mid-Atlantic Ridge

ICELANDSeas of the Atlantic

North

Sargasso Sea

The only sea-within-a-sea

INDIAN

The only ocean withMICROCONTINENTSit is also growing (mid-Indian Ridge)

The only ocean witha current… that REVERSESevery 6 months!? Deepest pt

Java Trench10,050

Seas of the Indian Ocean

Arabian Red

ARCTIC shallowestWasn’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 flowsaround the earth UNOBSTRUCTED

The Largest Sea

MediterraneanMEDITERRANEAN – 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

I SEE WHATYOU DIDTHERE…

CARIBBEAN – max depth 8000m, heats Gulf Stream

akaAM

MED

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