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Did The Earth's magnetic field reverse its polarity 170 times in the last 80 million years?
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Will the polarity of the earths magnetic field change in 2012?
There is no reason to believe that the Earth's magnetic field will change any time soon... or, for that matter, that anything extraordinary is going to happen in 2012.
Explain how the reversal of earths magnetic poles can be produce a calendar for part of earths history?
In rock formed when the sea floor is being built, such as at the mid-Atlantic ridge, the minerals preserve the magnetic polarity. Since the flipping of the poles is fairly regular, the count of the bands can give a time.
Do bats use the earths magnetic fields?
no
Earths magnetic field does not affect what?
Other planets
What gives rise to the Earths magnetic field?
Current flows inside he Earth.
How is earths magnetic field used by people and animals?
the earths magnetic signature is a negative polarity signature
When new basalt forms along mid-ocean ridges it become magnetized?
accorsing to the earths magnetic field
Earths magnetic poles reverse approximately every years?
The process of the reversal of the Earth's magnetic poles is called a magnetic flip. This occurs every 4 or 5 times per million years.
About how do earths magnetic poles reverse?
every 250,000 years :)
Can the earths magnetic field move?
Yes it can reverse from North to South
The patterns of iron particles found in sea floor rocks result from what?
The earths magnetic polarity at the time of rock formation.
Earths magnetic poles reverse approximately every how many years?
250,000 years
Will the polarity of the earths magnetic field change in 2012?
There is no reason to believe that the Earth's magnetic field will change any time soon... or, for that matter, that anything extraordinary is going to happen in 2012.
About how often do earths magnetic poles reverse?
Every 250,000 years, when it farts
Explain how the reversal of earths magnetic poles can be produce a calendar for part of earths history?
In rock formed when the sea floor is being built, such as at the mid-Atlantic ridge, the minerals preserve the magnetic polarity. Since the flipping of the poles is fairly regular, the count of the bands can give a time.
Where is earths magnetic North Pole?
compasses point to it. its at the north pole in the arcticNo It's not, the Magnetic North Pole is at this moment just off Ellesmere Island heading towards Russia at a rate of 40 miles (60 km) per year.AnswerIt depends what you mean by 'magnetic north pole'. If you mean the location, called 'Magnetic North' (arctic), then its polarity is south. If, by 'magnetic north pole', you mean its magnetic polarity, then it's located at Magnetic South (antarctic).
What is earths north magnetic pole?
You must not confuse 'Magnetic North' with 'north magnetic pole', as these two things are completely different! 'Magnetic North' is a location, while 'north magnetic pole' refers to the magnetic polarity of the earth's 'Magnetic South'.'Magnetic North' is the point on the earth towards which magnetic compasses point. It is not a fixed position. It is presently (2012) in Canada and is drifting toward Siberia. It should not be confused with Grid, Geographic, or True North, which is a fixed point located at the axis about which the earth revolves. The same applies to the Magnetic South.The term, 'Magnetic North' describes a location, and has absolutely nothing to do with its magnetic polarity. The magnetic polarity of the location we call Magnetic North is actually a south pole, which is the reason it attracts the north pole of a magnet or compass needle.
