in magma and lava, there are magnetic minerals, called magnetite. When new magma reaches the surface, these minerals start to align with the existing magnetic 'field' around the earth, starting at the North pole, and ending at the South pole. once the magma cools, these minerals remain at this inclination. These rocks often form on the sea floor, where 2 plates are moving apart. Every 10,000 years (or so), the magnetic poles switch. So it would start at the south pole, to the north pole. This means the inclination of the minerals would swap in new magma. So as the sea continues to spread, there is a striped appearance on the sea floor, where the are symmetrical bands of alternating magnetically inclined rocks. Hope that helps :)
telephone pole. telephone is describing the pole. what kind of pole is it a telephone pole
no
Until the early 1900s, there was no evidence that Antarctica was a solid continent, and the continent remained entirely unmapped until then. Be aware, however, that today, there are vast areas of Antarctica that are 'unmapped', except by satellite imagery.
north pole , ( the last person answer this , " yes or no " question is wrong.) it is north pole
To the magnetic North Pole which fluctuates in it's distance from the true pole.
pole reversals seafloor spreading
pole reversals
rocks get older as you move away from ocean ridges
Rocks lock in their magnetism when they cool.
the sun
The sun
The sun's pole reversal is tied to the sunspot cycle.
The sun
Magnetic reversals
The sun's pole reversal is tied to the sunspot cycle.
Magnetic reversals and sea floor spreading.
Magnetic reversals and sea floor spreading.