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OKIsItJustMe

(21,767 posts)
3. Geology moves in geologic time
Thu May 9, 2013, 04:34 PM
May 2013

Magnetic North may have been to the South a million years ago. However, that doesn’t mean that the Arctic wasn’t at the top of the globe.
http://www.nasa.gov/topics/earth/features/2012-poleReversal.html

This animation (showing Pangaea breaking up to form the continents as we know them) is believed to have taken about 200 Million years.
http://www.nature.nps.gov/geology/usgsnps/animate/pltecan.html


Continental drift may be as fast as a few centimeters a year (let’s call it at most 10.)
http://www-spof.gsfc.nasa.gov/earthmag/reversal.htm

10,000,000 centimeters = 100,000 meters = 100 kilometers

So, let’s call it at most 62 miles in a million years.

(So, the continents haven’t moved very much in the last 1,000,000 years.)

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