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Why did magnetic reversals on the seafloor support seafloor spreading?
Wiki User
∙ 13y ago
Earth got its north and south Pole's have geographic and magnetic north and south poles which makes an angle of nearly 5.6degree. magnetic field created due to core of earth is reversed during each 100 million year period. ie.magnetic north becomes south and vice's. seafloor spreading is a continuous event so for each 100my spread seafloor we get opposite polarised magnetic substances. That is called magnetic reversal
Wiki User
∙ 13y ago
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What is the name of maps that show depths of water and the shape of the seafloor?
Hydrographic surveys, which support the nautical charts used by mariners.
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What do magnetic reversals help support?
the theory of sea-floor spreading
What magnetic reversals help support?
the theory of sea-floor spreading
Magnetic reversals have helped to support?
The reversal of the poles on a magnet, put simply.,
How do magnetic signatures support the idea that continents move?
Scientists indicated that the seafloor was spreading, so the poles "reverse"
How do earth's magnetic signatures support the idea that continents move?
Scientists indicated that the seafloor was spreading, so the poles "reverse"
How is magnesium used to support the theory of seafloor spreading?
No
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 did Alfred Wegeners theory support the theory of seafloor spreading?
He supported the Seafloor Spreading Theory by first discovering the Continental Drift Theory.
How do the ages of the rocks on the seafloor support the theory of seafloor spreading?
The ages of the rocks become older the farther the way they are from the ridges. The closer they are the younger it is. This leaves evidence to the seafloor spreading theory.
What properties of iron bearing minerals on the seafloor support the theory of seafloor spreading?
iron bearing minerals can record Earth's magnetic field direction. when Earth's magnetic field reverses, newly formed iron bearing minerals will record the magnetic reversal. magnetic reversals show new rock being formed at mid-ocean ridges. This helped explain how the crust could move
What is the most important in providing support for the sea floor spreading hypothesis?
"Magnetic Polarity: the North and South magnetic poles have switched positions throughout Earth's history... the record of magnetic polarity in the rocks of the ocean floor provided unequivical support for the seafloor spreading hypothesis." - as quoted in chp. 4, pg. 94, from the textbook "The Good Earth: Introduction To Earth Science"
How did the seafloor drilling help scientist find evidence to support the seafloor-spreading hypothesis?
people here are stupid , really the answer is not hi
