Greeting's to all,
This article on UniverseToday.com, by Ian O' Neill, is a very well written summary on Geomagnetic Reversal theories and actual scientific evidence.
Note: It inculdes related subject material and direct links to them for references.
Home site
www.universetoday.com/
article page
http://www.universetoday.com/10/03/2...netic-reversal
giovonni