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How does the magnetic orientation of lava layers demonstrate reversals of earths magnetic field?
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How is the orientation of Earth's magnetism recorded in rocks on the ocean floor?
Earths magnetic orientation is locked into the rock when the rock cools
What effect does magnetic variation have on the earths orientation?
Absolutely none.
How do earths magnetic pole reversals provide evidence for tectonics?
rocks get older as you move away from ocean ridges
What are Other than earth is also known to have magnetic pole reversals?
The sun (correct for Apex) :)
What do bands of rock on the seafloor showing alternating magnetic orientation indicate about the earths magnetic field?
They indicate that the Earth's magnetic field has undergone shifting of the positions of it's poles several times in the past.
Where is Earths magnetic reversals recorded?
in plate tectonics
How is the orientation of Earth's magnetism recorded in rocks on the ocean floor?
Earths magnetic orientation is locked into the rock when the rock cools
How were the reversals of the Earth's magnetic field discovered?
The reversals were seen by archeologists in ancient pottery shards.
How is the orientation of earths magnetics recorded in the rocks on the ocean?
Earths magnetic orientation is locked into the rock when the rock cools
What effect does magnetic variation have on the earths orientation?
Absolutely none.
What is it called when rocks are different because Earths magnetic poles change places?
Magnetic Reversal. Several magnetic reversals have occurred over geologic time.
How do earths magnetic pole reversals provide evidence for tectonics?
rocks get older as you move away from ocean ridges
How is the orientation of earths magnetism recorded in rocks on the?
Earth's magnetic orientation is locked into the rock when the rock cools
What are Other than earth is also known to have magnetic pole reversals?
The sun (correct for Apex) :)
Is earths magnetic field weakest at its poles?
No, but at the poles the field (because of the orientation of the field lines) offers the least protection.
Is earths magnetic field the weakest at its poles?
No, but at the poles the field (because of the orientation of the field lines) offers the least protection.
What do bands of rock on the seafloor showing alternating magnetic orientation indicate about the earths magnetic field?
They indicate that the Earth's magnetic field has undergone shifting of the positions of it's poles several times in the past.
