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April 15, 2009 02:54 PM
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I have already received a Best Answer for the same question:
http://www.mahalo.com/answers/earth-sciences-and-geology/are-earths-magnetic-poles-going-to-shift-if-so-when
For your benefit I am copying my answer here:
The Earth's geomagnetic field is well known to anyone who's ever used a compass. Such usage is typically on the surface of the earth, but it must be noted that the geomagnetic field permeates the planet itself and extends outward into space. At the surface of the Earth the field is evidenced by the behavior of magnetite material, such as bar magnets, which when suspended and free to rotate, align themselves with the geomagnetic field.
http://rashmanly.files.wordpress.com/2008/10/070124_tw_substorm_02.jpg
According to paleomagnetists, the Earth periodically -- every few hundred thousand years -- flips its magnetic field (i.e. the north and south magnetic poles are reversed). Evidence for this peculiar habit is provided by measurements of the orientation of magnetic materials in sedimentary and volcanic rocks, and the fact that such orientations have been grouped into distinct periods over the last 178 million years. Based on this evidence, the most recent magnetic pole reversal appears to have occurred some 730,000 years ago, leaving the north and south magnetic poles at 75 degrees North, 102 degrees West, and 67 degrees South and 140 degrees East, respectively. Of course, this means that based on the relatively recent past, we're way overdue :)
http://rashmanly.files.wordpress.com/2008/10/earthpoles.jpg
Check out these sites for more detailed info:
Pole shift hypothesis -
http://en.wikipedia.org/wiki/Earth_Crustal_Displacement
Magnetic Pole Shift May Be Underway -
http://www.rense.com/general51/mag.htm
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http://www.survive2012.com/geryl1.php
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chazzyfen
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pole shifts
What evidence is there regarding earth north pole and south pole shifts?
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Best Answer Decided by Votes
| April 16, 2009 08:14 PM |
http://www.mahalo.com/answers/earth-sciences-and-geology/are-earths-magnetic-poles-going-to-shift-if-so-when
For your benefit I am copying my answer here:
The Earth's geomagnetic field is well known to anyone who's ever used a compass. Such usage is typically on the surface of the earth, but it must be noted that the geomagnetic field permeates the planet itself and extends outward into space. At the surface of the Earth the field is evidenced by the behavior of magnetite material, such as bar magnets, which when suspended and free to rotate, align themselves with the geomagnetic field.
http://rashmanly.files.wordpress.com/2008/10/070124_tw_substorm_02.jpg
According to paleomagnetists, the Earth periodically -- every few hundred thousand years -- flips its magnetic field (i.e. the north and south magnetic poles are reversed). Evidence for this peculiar habit is provided by measurements of the orientation of magnetic materials in sedimentary and volcanic rocks, and the fact that such orientations have been grouped into distinct periods over the last 178 million years. Based on this evidence, the most recent magnetic pole reversal appears to have occurred some 730,000 years ago, leaving the north and south magnetic poles at 75 degrees North, 102 degrees West, and 67 degrees South and 140 degrees East, respectively. Of course, this means that based on the relatively recent past, we're way overdue :)
http://rashmanly.files.wordpress.com/2008/10/earthpoles.jpg
Check out these sites for more detailed info:
Pole shift hypothesis -
http://en.wikipedia.org/wiki/Earth_Crustal_Displacement
Magnetic Pole Shift May Be Underway -
http://www.rense.com/general51/mag.htm
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Other Answers (1)
April 15, 2009 04:19 PM
I hope that this website will help http://www.survive2012.com/geryl1.php
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chazzyfen
April 15, 2009 04:59 PM
Please provide an answer, summarizing what the site says, to the question, and not just a website.
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April 15, 2009 05:37 PM
I could go google pole shifts and come up with a website. That requires no effort, and doesn't help the asker, since they could do the exact same thing. A good example of a similar question with a good best answer is: http://www.mahalo.com/answers/earth-sciences-and-geology/are-earths-magnetic-poles-going-to-shift-if-so-when.
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