Re: Don's blog
From: Marc 182 (marc182spamless_at_globalcrossing.net)
Date: 12/13/04
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Date: Sun, 12 Dec 2004 21:15:10 -0700
In article <1102854941.289975.270700@c13g2000cwb.googlegroups.com>,
don@tower.net.au says...
<snip>
> I posted a
> message a little while back looking for clarification on something I
> thought was cranky, ..about what nasa said about subduction
> zones, and how the crust keeps pushing the mantle down:-
>
> "This leads us to the second type of plate boundary, which is called a
> convergent boundary or subduction zone. These are plate margins where
> one plate is overriding another, thereby forcing the other into the
> mantle beneath it. These boundaries are in the form of trench and
> island arc systems."
> <http://scign.jpl.nasa.gov/learn/plate4.htm>
>
> If that's not cranky I don't know what is.
You're right, you don't know what is.
Marc
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