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don findlay  
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 More options Mar 31 2008, 10:10 am
Newsgroups: sci.geo.geology
From: don findlay <d...@tower.net.au>
Date: Sun, 30 Mar 2008 17:10:28 -0700 (PDT)
Local: Mon, Mar 31 2008 10:10 am
Subject: Re: Magnetic field
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George wrote:
> "Paul" <P...@comcat.net> wrote in message
> news:-KqdnRjmQ7SeaH_anZ2dnUVZ_vzinZ2d@comcast.com...
> > Florian wrote:
> >> Paul <P...@comcat.net> wrote:

> >>> Florian wrote:
> >>>> George <Geo...@george.net> wrote:

> >>>>>> Leave the energy question on the side, and look at the chronology of
> >>>>>> the
> >>>>>> major volcanic events:

> >>>>>> <http://www.esa.int/images/ChronologyModel_v02_H.jpg>

> >>>>>> It looks like the frequency of major events has increased. That is at
> >>>>>> odd with the statement that the activity on Mars is gone forever.
> >>>>> Umm, increased?  Only if you read the graph upside down.  According to
> >>>>> the
> >>>>> graph, between 3.7-4.2 bya there were some 3,500 volcanic episodes.
> >>>> <eyes rolling>

> >>>> George, confused as usual. Guess what? impact craters are NOT volcanic
> >>>> episodes...

> >>> I read it the same as George.
> >>> According to the legend, the little volcano pics with numbers represent
> >>> "Major Episodes of Volcanic Activity."

> >> LOL, the numbers represent the age of each Episode. Next time, read the
> >> full paper which was cited a few articles above ;-)

> >> <http://www.esa.int/esaCP/SEMCPLM5NDF_index_0.html>

> > You are right.  Wow!  That should have been obvious to me.
> > Definite brain glitch.

> Yeah, I made the same mistake.  For future reference, Florian. It would help
> if you posted a link to the entire article so we can know the context of the
> graphs you are referrring to.

Yeah, Florian, ..It's all your fault.

> But you are right in the sense that the graph
> doesn't show a decrease in volcanic activity.  But it doesn't show an
> increase either. It only shows that the volcanic activity has been widely
> distributed and sporatic in time as indicated by continued loss of craters
> due to lava flows.

See?   George is right all along.

> The article makes the point that all the internal heat
> within Mars may not have yet dissipated, but it doesn't say that it is
> currently active.  Only suggests that there could be further activity on the
> planet.  I think it is possible that some very minor activity could occur in
> the furture.  But there certainly is no evidence that large scale vulcanism
> has occurred in recent times.  It certainly appears to make the case that
> although Mars may still be tectonically active, it is subtle, probably order
> of magnitude less active than Earth, which would indicate that Mars interior
> certainly isn't the dynamo that Earth's interior is.

You really are a Doozy, George.

> Geore

Who can't even spell his own name.

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