A testing time..
- From: don findlay <don@xxxxxxxxxxxx>
- Date: Fri, 23 Jan 2009 05:08:04 -0800 (PST)
So, guys, put your sliderules and your rubbers aside. It's not a
numbers game. Nothing about what happens numerically today or
tomorrow carries any weight against 300my of millenia past. And
don't make the assumption that the Earth cannot get bigger (because we
know of no way that it can). It's not helpful.
How *would* you interrogate the geological record to confirm or deny
the apparently obvious, which is that the separation of retrofittable
continents by the ocean floors means that the Earth has got
bigger. ??
Subduction zones are now zones of "overriding", i.e., the ocean
floors are *not* being returned to the deeper mantle, they're just
being overridden, .. And, though it will take Pteros a while to get
there, .. overriding is linked to the process-dynamics of spin. And
tomography confirms "Flat subduction", i.e., again, *no return* to the
deeper mantle.
Without the lynchpin of cycling return of ocean floors to the mantle,
Plate Tectonics is stuffed anyway. Something else is needed.
So how might the geological record be further interrogated to address
the issue (of apparent growth of the ocean floors meaning the Earth
has got bigger) ?
.
- Follow-Ups:
- Re: A testing time..
- From: Bruce Bathurst
- Re: A testing time..
- From: brad
- Re: A testing time..
- Prev by Date: Re: New Insights Into Convection In Planets And Stars
- Next by Date: Re: New Insights Into Convection In Planets And Stars
- Previous by thread: Another stunning view...
- Next by thread: Re: A testing time..
- Index(es):