Re: Plate Tectonics Graphics?


"oriel36" <geraldkelleher@xxxxxxxxx> wrote in message
news:1133008106.305304.128980@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

>
> The good news is that the graphics dictating crustal motion and
> evolution have yet to be resolved and will look nothing like
> contemporary attempts such as convection cells .
>
> http://pubs.usgs.gov/publications/graphics/Fig32.gif
>
> No point in going negative with convection cells/stationary Earth when
> observed data of rotating celestial objects determine a specific
> feature with a specific underlying mechanism,the profile of the Earth
> and the differential rotation in the mantle which conditions that
> component plates follow the profile and subsequently are affected by
> the same mechanism.
>
> http://www.astronomynotes.com/starsun/sun-rotation.gif
>
> Differential rotation bands in the mantle allow the crust to sit on the
> plastic-molten mantle ,move around and because the mantle does not
> rotate as a single unit but in bands,the difference betwen bands
> affects the fractured plates in terms of Earthquakes and volcanoes.Best
> of all,it brings the Earth's shape into the realm of geology .
>
> Give people something new next year and forget about priority and any
> of that nonsense by demonstrating that while the natural geological
> processes that generate Earthquakes may be far from being understood
> precisely and certainly not predicted in any meaningful way,the people
> investigating these things are more excited by the avenues of
> investigation than they are in defending untenable positions.
>

Thanks for that. This is so interesting to me. I should go back to school
and learn Geology. Well. that or Astronomy. I love reading this newsgroup.
I learn something new everyday.

Thank you.

Cary


.

Relevant Pages

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