deep ocean technology & the ocean floor. important vocab continental margin continental shelf...
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Deep Ocean Technology & The Ocean Floor
IMPORTANT VOCABContinental marginContinental shelfContinental slopeContinental riseDeep ocean basinAbyssal plainMid-ocean ridgesRift valleyOcean trenchesSea mountsLETS LABEL THE DRAWING WITH THE FOLLOWING TERMSPGS 86 -- 87
Vocabulary wordsThe continental shelf is the gently sloping section of the continental margin. The depth can reach 200 meters. The continental slope is steeply inclined section between the continental shelf and the ocean floor. The continental rise is the base of continental slope, made of piles of sediment. The abyssal plain is the broad, flat part of the ocean floor. An ocean trench is a deep canyon on the ocean floor. They form where one tectonic plate is pushed under another.
Vocabulary continuedA seamount is a volcanic mountain on the ocean floor. Guyot is a submarine volcanic mountain with a flat top. Islands are seamounts that rise above the water surface. The mid-ocean ridge is a mountain range that runs through all the worlds oceans. It is almost 64,000 kilometers (40,000 miles) long! It forms where tectonic plates pull apart. Magma erupts through the ocean floor to make new seafloor. The magma hardens to create the ridge. Rift valley is a long valley formed between the two sides of mid-ocean ridges.
LABEL THE PICTURE WITH THESE PARTS:Continental shelf, Continental slope, Continental rise, Abyssal plain, Mid-ocean ridge, rift valley, ocean trenches, and seamounts
ContinentalriseContinentalContinental Ocean trench
Pgs 84 85, 88 89TASK 1: List the 3 ways that humans study the ocean floor?
Pgs 84 85TASK 2: Make a flow map that shows how SONAR works.
HOW DOES SONAR WORKWorks like batsSOUNDWAVE (PING) is sent down, towards bottom of oceanPING hits land.PING bounces back.Time it took for PING to hit something and come back is recorded.Time is converted into a distance.
Mata Volcano pictures
Pgs 84 85TASK 3: What are the 2 satellites used to study the ocean floor and what information do they give?
SATELLITESatellite images cover more territory than SONAR
Pgs 88 89TASK 4: Explain the differences between piloted vessels and robotic vessels.
UNDERWATER VESSELSPiloted vessels are expensive and more dangerous for humans in the vessels. Robotic vessels are cheaper and safer because humans control the vessels from the surface of the ocean.