[editor-surveyor]

No, subduction is essentially the plate remelting as it slips under another. No one has ever advanced the idea that any significant amount of sediment could be carried along for the ride, and the pressures involved make that unlikely.

[blowfish]

No one has ever advanced the idea that any significant amount of sediment could be carried along for the ride, and the pressures involved make that unlikely.

Really?

http://tlacaelel.igeofcu.unam.mx/~mary/Manea et al_02.pdf http://gsa.confex.com/gsa/06boa/finalprogram/abstract_101547.htm http://gsa.confex.com/gsa/06boa/finalprogram/abstract_101547.htm http://www.usssp-iodp.org/PDFs/Greatest_Hits/Margins/Silver.pdf http://www.gsajournals.org/gsaonline/?request=get-abstract&doi=10.1130%2F0091-7613(1980)8%3C530:SSAFSI%3E2.0.CO%3B2

etc etc etc...

[VadeRetro]

Sediment compacts to rock rather than staying around as loose sediments. Old sediments in whatever form are very rare because they subduct. This is standard geology. Even Precambrian sediments are very rare, and that's only half a billion years out of four and a half million. This is what mainstream science says on the subject.

Looking back over your posts for what else you're mangling:

The rate at which land slides are making mountains into meadows cannot be extrapolated back more than a few thousand years before the beginning mountains would have to have been 10,000 miles high.

Mountains, like icebergs, extend below the surrounding crust as well as above it. Like icebergs, they bob up as they erode from the top, for they are lighter crust materials floating on the denser semi-liquid mantle. Your 10,000 miles high number is absurd in any event, something pulled from a YEC butt.

Plate tectonic models are very reasonable extrapolations from things we can see happening right now. We can see the Himalayas rising right now. We can see the continents creep right now, measuring the process year to year. We have the signature of past oceanic plate motions over hot spots like the one beneath the Hawaiian Islands. That signature is the distribution and geologic age of the islands themselves.

With that kind of evidence and the models we have, you have to be trying to make a mess of it to make a mess of it. The problem is, YECism has to do just that to get to the predetermined and wrong answer of a 6K years-old Earth.