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Presentation transcript:

$100 $200 $300 $400 $500 $100 $200 $300 $400 $500 $100 $200 $300 $400 $500 $100 $200 $300 $400 $500 $100 $200 $300 $400 $500 $100 $200 $300 $400 $500 Exploration Seafloor Features 2 Seafloor Features 1 Zones / Sediments General 1General 2

na

What orbits the Earth and takes measurements of the ocean from space?

satellites

This device is used on the bottom of ships to map seafloor features using sound echoes.

sonar

This was the name of the first ocean exploration vessel.

Challenger

The name of the first satellite designated to study the oceans.

SeaSat A

na

Several sea floor features that are technically part of the continents are collectively called these.

Continental margins

The shallowest part of the ocean.

Continental shelf

Underwater volcanoes.

Seamounts

Very deep and flat parts of the ocean.

Abyssal plains

na

Underwater mountain chains that extend down the middle of some of the oceans.

Mid-ocean ridges

Steep drop off from the continental shelf to the sea floor.

Continental slope

Ocean basins make up what % of the Earth’s surface?

60%

Flat topped seamounts.

guyots

na

Most ocean sediments come from here.

continents

Oozes are the slow accumulation of what on the sea floor.

shells

What ocean zone covers the ocean basins?

Open-ocean

These sediments accumulate the slowest and are made up of metals.

Manganese nodules

na

Self contained underwater breathing apparatus is this.

scuba

The deepest point in the ocean is named this.

Marianna trench

The deepest part of the oceans.

trenches

Holes on the seafloor through which magma heated water erupts.

Hydrothermal vents

na

The ocean zone found between areas of high tide and low tide.

intertidal

The gently sloping deposits of sediment leading up to the continental slope.

Continental rise

The name of the vessel that first used sonar to map the sea floor.

Meteor

The ocean zone that extends from areas of low tide to the edge of the continental shelf.

neritic

Topic: Satellites

Name one recent satellite that was used to map sea level variations and thus sea floor features.

Topex/Poseiden Jason 1 or 2