Re: heat corpuscles in the mantle


Stuart wrote:
> George wrote:
> > "Stuart" <bigdakine@xxxxxxx> wrote in message
> > news:1134344156.905257.286660@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
> > >
> > > Alan wrote:
> > >> In article <1134265314.314077.315840@xxxxxxxxxxxxxxxxxxxxxxxxxxxx>,
> > >> don@xxxxxxxxxxxx (don findlay) wrote:
> > >>
> > >>
> > >> Actually Don, as you ask, for a very long time I have had this site
> > >> bookmarked.
> > >>
> > >> http://www.sentex.net/~tcc/siem.html
> > >>
> > >> Subcrustal Ice Earth Model
> > >>
> > >> What's Down Inside?
> > >> Could the earth contain a subcrustal ice layer? Jupiter's largest
> > >> satellites,
> > >> Ganymede, (diameter 5,262 km, density 1.94 gm/cm3), and Callisto,
> > >> (diameter
> > >> 4,800 km, density 1.86 gm/cm3) have water/ice mantles and rocky cores.
> > >> Ganymede's crust probably consists of a thick layer of water ice.
> > >>
> > >> The earth is unique in the solar system because of the presence of
> > >> liquid water
> > >> at the surface, and its high density core. The earth's atmosphere, also,
> > >> is
> > >> uniquely constituted for sustaining life. But evidence for ice and water
> > >> elsewhere naturally leads to the question, why couldn't the earth's
> > >> interior
> > >> also contain an ice layer? The Subcrustal Ice Earth Model (SIEM) is
> > >> being
> > >> developed to investigate this possibility.
> > >
> > > Not as Doug Cox envisions it.
> > >
> > > As was pointed out a number of years ago on talk.origins., Cox's model
> > > can't account for the observed seismic phase veolocities in the Earth.
> > > THats just the tip of the ice-berg ( No pun intended).
> > >
> > > Futhermore, there is a large difference between what Cox proposes (he
> > > is a young earth creationist) and what experimental petrologists
> > > propose. Cox is driven to find an explanation for something which never
> > > happened, the Noachian Deluge/
> > >
> > >>
> > >> According to the conventional theory of plate tectonics, water and other
> > >> materials from the earth's surface are recycled to the deep interior by
> > >> hypothetical processes of subduction and convection. The driving force
> > >> for the
> > >> postuated movements of the plates is mantle convection, a process
> > >> invoked by
> > >> Arthur Holmes as a mechanism for continental drift.
> > >>
> > >> The Inner Workings of the Earth by Michael Wysession, from American
> > >> Scientist,
> > >> March-April 1995 presents a discussion of current thinking about
> > >> mechanisms for
> > >> recycling water and other materials from the earth's surface to the deep
> > >> interior. According to the theory, some of this water returned to the
> > >> interior
> > >> by convection driven processes becomes ejected in volcanic eruptions.
> > >
> > >>
> > >> The convection hypothesis comes under critical scrutiny in: Is mantle
> > >> convection
> > >> no more than a storm in Arthur Holmes' porridge bowl? This author of
> > >> this
> > >> article [presumably Dr. Ken Duckworth, professor of geophysics at the
> > >> University
> > >> of Calgary], uses the pseudonym A.H.E.Retic. He tilts against "a concept
> > >> so
> > >> powerful that even today it has become a Mantra to be chanted by all
> > >> should they
> > >> ever hope to get a grant to study any aspect of the crustal behaviour of
> > >> the
> > >> earth". The article identifies several fatal flaws in the standard dogma
> > >> of
> > >> mantle convection, and develops some helpful Retic's Rules.
> > >>
> > >> Could the concept of recyling of water from the earth's hydrosphere back
> > >> into
> > >> the depths of earth, (needed for the conventional view of an ancient
> > >> earth,
> > >> billions of years old) be wrong? Thermodynamics suggests bodies that are
> > >> heating
> > >> up degass. The high concentration of radioactive isotopes in rocks could
> > >> mean
> > >> the earth is heating up. See The Heat of the Earth.
> > >
> > > THis seems to ignore the fact that the Earth's compliment of
> > > radioactive materials is diminishing through time.
> > >
> > >>
> > >> A 1995 paper by Lars Stixrude, Mineral physics of the mantle from
> > >> Reviews of
> > >> Geophysics considers possible mechanisms by which water and volatiles
> > >> could
> > >> exist deep in the earth's interior, combined with other minerals.
> > >> Stixrude notes
> > >> that 1% by weight water stored in the earth's mantle amounts to 30
> > >> hydrospheres.
> > >
> > > Lars has done some extraordianry work in that area.
> > >
> > > However, some of the claims above are bizarre. THe fact that the mantle
> > > may contain a component of water, makes convection more likely as a
> > > mechanism, not less.
> > >>
> > >> If the water and volatiles in the earth's interior are primeval, the
> > >> earth could
> > >> not be billions of years old!
> > >
> > > ?
> > >
> > > A laughable assertion.
> > >
> > > Stuart
> >
> > Lol. If there is water deep within the earth, and it is "primeval" and the
> > earth is not, how did the water get into something that is younger than it
> > is? Do these guys ever think?
>
> I think he was attempting to argue, that it should have been outgassed
> by now if the Earth was really billions of years old. THus if water
> still exists in the Earth's mantle, the mantle is either not
> convecting, or young.

It's both.


>
> Stuart

.

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