Re: A geology lesson (was Re: pole shift)

Michael Lorrey (
Wed, 23 Jul 1997 19:49:00 -0400 wrote:
> In a message dated 97-07-22 05:17:20 EDT, you write:
> << I don't get it. Yes, the plates move in different directions,
> that's obvious. If every pair of nearby plates were converging
> (or diverging), the planet would have to be shrinking (or growing).
> I can't visualize what Shaun is suggesting here - that two plates
> may approach each other without colliding? Or that some collisions
> have a lateral component (that can't be surprising)?
> >>
> Actually the planet has been growing, when the planet was one land mass, it
> was 80% the size of what it is today. They can tell by the way the
> continents fit.

Danny, the continental plates may only cover 80% of the earth's area
(which I doubt), but the rest is taken up by the pacific and indian
ocean plates which are subducting under the North American, SOuth
American, Australian, and Asian plates. If what you suggest is true,
then we would have a much greater meteoric impact record than we do and
be living under much greater greenhouse conditions. Thus only the
continental plates have grown as divergence continued, but those growing
plates rode over older plates that subducted under them.

20% of the earth's surface covers a volumebelow it in a cone shape to
the core of approximately 25 billion cubic miles. Given that Pangea was
in existence as late as a couple hundred million years ago, we would
have to be seeing around 100 cubic miles of meteoric accretion to our
planet EVERY YEAR to equate to a 20% increase in earth's surface area.
As this is obviously not true, then the idea that our earth's surface is
20% greater than in the time of Pangea is ludicrous. We would have to
experience the equivalent of 10 Yucatan extinction asteroids every year.
This obviously would have exterminated life...a long, long time ago.

			Michael Lorrey
------------------------------------------------------------		Inventor of the Lorrey Drive

Mikey's Animatronic Factory My Own Nuclear Espionage Agency (MONEA) MIKEYMAS(tm): The New Internet Holiday Transhumans of New Hampshire (>HNH) ------------------------------------------------------------ #!/usr/local/bin/perl-0777---export-a-crypto-system-sig-RC4-3-lines-PERL @k=unpack('C*',pack('H*',shift));for(@t=@s=0..255){$y=($k[$_%@k]+$s[$x=$_ ]+$y)%256;&S}$x=$y=0;for(unpack('C*',<>)){$x++;$y=($s[$x%=256]+$y)%256; &S;print pack(C,$_^=$s[($s[$x]+$s[$y])%256])}sub S{@s[$x,$y]=@s[$y,$x]}