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How does seafloor spreading affect the magnetic pattern on the sea floor?
Wiki User
∙ 14y ago
In short it doesn't.
The spreading of the sea floor comes from magma oozing up between the cracks between continental plates as lava. This lava subsequently cools rapidly and forms solid rock. It was found in the 1950s that the vast areas of rock on the ocean's floor formed in this way contained bands or stripes of magnetism pointing one way and then another.
It wasn't until 1963 that proposals were first put forth that the reversing patterns observed were the products of the Earth's magnetic poles reversing. Subsequent research on this topic has supported this initial hypothesis.
Magnetic banding isn't just observed with the ocean's floor but is also important to archaeologists as iron components within clay record the exact state of the Earth's magnetic field when they are fired.
Banding occurs because whilst liquid rock or with clay the magnetic particles can move around and can align themselves with the magnetic field. As they solidify they lose this ability and are fixed in place recording what the magnetic field was at that time.
Wiki User
∙ 14y ago
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How does seafloor spreading affect us?
seafloor spreading affects us with help from continental drift. seafloor spreading creates new seafloors, but moves the continents a few centimeters apart from each other every year. in many years, pangaea will become aeagnap, because the continents will become one big land again, but backwards, and will damage the faults and the only land we have severely.
Do magnetic underlays affect peacemakers?
Magnetic underlays affect on pacemakers are theorized currently. There are theories that they do have an effect on blood supply if used while there are some theories that do not support this concept. I would suggest consulting with your physician.
How do fire tornadoes impact the environment?
Firewhirls, as they are more properly called, can affect the environment by spreading fire beyond the boundaries of the fire from which they formed.
Can a electric current affect a compass?
Yes. An electric current is surrounded by a magnetic field, and this will affect a compass. Please note that this is more noticeable in the case of DC - for AC, the current changes all the time, it changes very quickly, and the AVERAGE value of the magnetic field is zero.
What best describes earths north magnet?
Our planet behaves as though a giant bar magnet is buried deep within the earth, and lying slightly out of alignment with the earth's axis of rotation. The points where this imaginary bar magnet's magnetic field lies perpendicular to the earth are named Magnetic North and Magnetic South respectively. These points do not coincide with the earth's geographic poles, which are called True North and True South respectively. It's very important to understand that 'Magnetic North' and 'Magnetic South' describe locations, and have nothing whatsoever to do with their magnetic polarities. In fact, these locations are not fixed, but constantly move relative to True North and True South, and the locations must be taken into consideration for the purpose of navigation.A freely-suspended magnet (or a compass needle) will align itself with the earth's magnetic field and will always come to rest pointing in a Magnetic North - Magnetic South direction. Because of this, one end of the magnet was originally named its 'North-Seeking Pole', while the other end was named its 'South-Seeking Pole'. Over time, we have dropped the word 'seeking' from these expressions, and now call the ends of a magnet (or compass needle) its 'north pole' and its 'south pole' which, by common consent, are used to identify the magnetic polarities of a magnet. Because 'unlike poles attract', this means that the magnetic polarity of Magnetic North (i.e. the location) must be a south pole, and the magnetic polarity of Magnetic South must be a north pole.To summarise, the terms 'Magnetic North' and 'Magnetic South' are locations so-named to differentiate them from 'True North' and 'True South' for the purpose of navigation. Because the north pole of a magnet or compass needle is attracted towards Magnetic North, that location's magnetic polarity is south. And, of course, the magnetic polarity of Magnetic South location is north.From geological records obtained from magnetized rock strata and other natural materials, it is well-known that the magnetic poles have actually "flipped over" several times during the many aeons of the earth's long history (although not during man's existence). Should this do so again in the future, it will have no affect whatsoever on the locations or on naming of 'Magnetic North' and 'Magnetic South', although their magnetic polarities will, of course, reverse!For more information see the Related links shown below.
How might geologic events such as the movement of tectonic plates affect the environment where species live?
Movement of tectonic plates can cause seafloor spreading and reversal of Earth's magnetic field, which can affect the organisms that are not adapted to the geological enviroment.
How does seafloor spreading affect us?
seafloor spreading affects us with help from continental drift. seafloor spreading creates new seafloors, but moves the continents a few centimeters apart from each other every year. in many years, pangaea will become aeagnap, because the continents will become one big land again, but backwards, and will damage the faults and the only land we have severely.
How does the Mid Atlantic Ridge affect the Atlantic Ocean?
The tectonic plates are separating and growing more ocean floor (seafloor spreading).
Does color affect magnetic force?
Color does not affect magnetic force. But as magnet gets heated it loses magnetism
Do magnetic fields affect camera film?
No
What 3 factors will affect beam Spreading?
Angle and what are the others
How does the moon affect the strength of magnetic force?
Not at all
Does the temperature of a magnet affect its magnetic lines?
yes
What does the earth's magnetic field not affect?
other planets
Earths magnetic field does not affect what?
Other planets
Does the earths magnetic field cause the earth to tilt?
No. Earth's magnetic field does not affect its axis of rotation.
How do volcano's form over spreading plates and subduction zones?
they dont affect it
