Re: Plate techtonics and asteroid hits


Nicolas Krebs wrote:
don findlay écrivit dans l'article
news:1187040034.901484.113120@xxxxxxxxxxxxxxxxxxxxxxxxxxxx

Nicolas Krebs wrote:

Thank you, but there is no explanation of what Florian mean by
"overthrusting" in http://users.indigo.net.au/don/tck/oversub1.html .

What sort of an explanation are you looking for?

Any sort of explanation which is an understandable explanation.

OK I see I posted the wrong link there, ..and if the right one doesn't
make it clear then I need to revise it. The point is in the jargon:
subduction carries connotations of convection and/or dropping slabs
(both independent mechanisms for plate tectonics drivers by the way),
whilst overriding does not. As well, the directionality/ polarity is
important as regards process; the mantle disappearing down the gurgler
under its own steam is different from the crust riding over the mantle
under its. And why would the crust ride over the mantle? Well, let's
look, and see - No theory here - it's simply that that is what the
morphotectonics of the Western Pacific is telling us, just like a
displacement of stratigraphy tells us there is a fault. Ok, there are
degrees of certainty, but you could hardly call it a theory when your
house falls down it. The Western Pacific is like *that.

And why (again) would the crust ride over it? Again (looking at the
geology), .. because the crust is detached from the mantle and the
structures describing that detachment/ overriding, are symmetrical
with a rotational displacement that globally links to an even higher
order of symmetry which describes, ....SPIN.

But because you won't find it in any textbook doesn't mean to say it's
a theory. It's as solid an observation as that the Earth is round.
It's part of a deformation that describes whole-Earth tectonics, the
whole lot in a single integrated picture related to spin, ... A
Beeauutiful Opening Flower, not the flung-about anatomical detritus of
a swami.

.

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