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How is sonar used to see seafloor spreading and the age of the sea floor?
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What scientist used sonar to prove seafloor spreading under the Atlantic ocean?
Using sonar, oceanographers were able to show that the edges of the continental shelves matched.
Describe how magnetism is used to support the theory of seafloor spreading?
New material is added to the sea floor when sea floor spreading occurs. When the iron cools it is magnetized by the magnetic field of the earth.
How is magnesium used to support the theory of seafloor spreading?
No
What is one technology oceanographers use today to explore nthe ocean floor?
Robotics is one such technology used today.
What did scientist use to map the ocean floor?
sonar - by bouncing sound signals off the bottom of the ocean, they were able to map the depth of the ocean. Deep sea diving would take too long. Satellites were not in orbit until the 1970's and submarines were not necessary since sonar could be done from the surface on a boat.
Who Used sonar to prove sea floor spreading?
Harry Hess
What is used to map seafloor topography?
Sonar is used to map the seafloor.
What scientist used sonar to prove seafloor spreading under the Atlantic ocean?
Using sonar, oceanographers were able to show that the edges of the continental shelves matched.
Describe how magnetism is used to support the theory of seafloor spreading?
New material is added to the sea floor when sea floor spreading occurs. When the iron cools it is magnetized by the magnetic field of the earth.
How is magnesium used to support the theory of seafloor spreading?
No
This activity simulates the technology used to map the seafloor. What is that technology called?
Sonar
When did harry hess propose seafloor spreading?
1960 (although Hess' paper built upon Alfred Wegener's theory of continental drift , proposed in 1915).
What is side scan sonar?
a sonar system that is used to efficiently create an image of large areas of the sea floor. it emits conical or fan-shaped pulses down toward the seafloor across a wide angle perpendicular to the path of the sensor through the water.
Paleomagnetic evidence was used to confirm which of the following hypotheses?
seafloor spreading
What are sonars used for?
Scientist use Sonar to map the ocean floor. Scientist use Sonar to map the ocean floor.
What is a sonar map?
A sonar map is a map used to map the ocean floor, often used by shipmen
Are submersibles used to map the ocean floor?
no sonars areNo they are not, a sonar maps the ocean floor.
