Re: Prior to Gondwana?

[Stan Friesen <swf@ElSegundoCA.ATTGIS.COM>]

>From: Skip Dahlgren <SDAHLGREN@liblan.uams.edu>
 > 
 > All sources that I have been able to find refer to no earlier land 
 > configuration than the unified supercontinent Gondwana. 

That is because until recently very little was known about this.
It is very hard to untangle the various threads of evidence to
get a reliable answer to this question.

Recently a few books have been published that cover this.
If I remember correctly, the is a small paperback book that is
an atlas of prior continental configurations that goes back to
about the beginning of the Cambrian.  (I believe it has a green
cover).

 > Yet it seems 
 > reasonable to assume that there must have been movement prior to Gondwana.  
 > This huge cluster must have been the result of earlier continental movements 
 > and collisions.  

Yep.  There was quite a bit of movement.

swf@elsegundoca.attgis.com              sarima@netcom.com

The peace of God be with you.