Re: Owen's Two-Phase Model of Earth Expansion

From: George (george_at_wtfiswrongwithyou.com)
Date: 03/02/05 

Date: Wed, 02 Mar 2005 23:49:20 GMT

"Stuart" <bigdakine@aol.com> wrote in message
news:1109798947.875704.137470@o13g2000cwo.googlegroups.com...
>
> don findlay wrote:
>> Matt wrote:
>>
>> > I think I'm seeing this - will have to think about it more. Thanks
>> > for taking the time to explain.
>>
>> Growth/ spreading/ 'movement', ..is not easy to get your mind around.
>> And 'uplift' equates with sea-level change, not outwards movement of
>> the Earth's surface from the centre - though they are related.
>>
>> >
>> > > But you can see the difference between the zones in plan quite
>> easily:-
>> > > http://users.indigo.net.au/don/ng/123.html
>> > > Fast or slow? I don't know. The point is that the ages of the
>> ocean
>> > > floors based on a model of thermal contraction are quite wrong.
> It
>> > > needs reappraised.
>> >
>> > What is wrong with the dating method?
>>
>> It's based on the **ASSUMPTION** (assumption) that an increase of
>> depth away from the ridge is caused by the thermal contraction as the
>> plate cools on moving away from the ridge axis, and that this
> reflects
>> the age.
>
> Not an assumption, but fact. What Don talks about however, does also
> happen. Google "Propagating Rifts". However ocean basin form by
> spreading at ridges, not their propagation.
>
> Second, there are no PT assumptions involved in the direct dating of
> rocks. Plenty enough rocks have been dated directly to render Don's
> point moot.
>
> Stuart

Another point that has to be made is that if the earth is expanding beneath the
ocean basins, why do the basins still exist? Wouldn't they be higher in
elevation than the continents? Even a 10% increase in the earth's diamter would
be more than enough to cause the ocean floors to bulge to the point where they
would be above sea level. As an example, if the earth was same size at the
break up of pangea that it is today (7,900 miles), and increased by 10% from
then until now, it would increase in diameter by 790 miles to 8,690 miles. The
deepest part of the ocean is at the challenger deep, is only 6.78 miles below
the surface. So if the earth expanded even just 10%, the challenger deep would
be 395 miles (increase in radius) - 6.78 miles = 388.2 miles high, which is
slightly (irony added) higher than sea level. I know this is a silly thought
problem, and obviously it wouldn't work quite this way, but it does point out a
major flaw in any argument about EE. Oh, but everything else is going up at the
same time, right? Well, if that is the case, the surface would flatten out and
the oceans would been much shallower, and you wouldn't have these challenger
deeps or the abyssal plains.

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