From: Mike Lorrey (mlorrey@yahoo.com)
Date: Wed Feb 12 2003 - 20:30:53 MST
--- Lee Corbin <lcorbin@tsoft.com> wrote:
> Mike Lorrey writes
>
> > Keep in mind our atmosphere is so thin because
> > of billions of years of carbon sequestration that
> > followed an impact event that stripped much of
> > earth's original lithosphere, which now forms
> > most of the moon.
> > > I'd like to know more about this...where might I look?
> >
> > Martyn Fogg's text "Terraforming Planetary
> > Environments", which you can find at Amazon.
>
> Well, perhaps you could just answer this for several
> of us. Isn't this the sequence of events you're
> suggesting?
>
> (1) Earth and moon coalesce as separate astronomical bodies
> but with the moon's composition similar to the Earth's
Most planetesimals of the early solar system were of similar
composition.
> (2) Some massive impact event on Earth stripped away much
> of Earth's original lithosphere---picture is found at
>
> http://www.cotf.edu/ete/modules/msese/earthsysflr/lithosphere.html
Yes, and the ejected lithosphere coalesced around the planetesimal that
struck the Earth, forming the Moon.
> (3) the carbon sequestration (http://csite.esd.ornl.gov/) altered
> the atmosphere and topsoil even more.
Quite so, this is where ALL of the limestone that makes up a large part
of the mass of the Continents comes from.
=====
Mike Lorrey
"Live Free or Die, Death is not the Worst of Evils."
- Gen. John Stark
"Pacifists are Objectively Pro-Fascist." - George Orwell
"Treason doth never Prosper. What is the Reason?
For if it Prosper, none Dare call it Treason..." - Ovid
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