Re: ALL the oceanic crust is recycled in 180 My: unrealistic


"Florian" <auxotectonics_deletethis@xxxxxxxxxxxxxxxxxx> wrote in message
news:1in2upw.xtnuof561qvvN%auxotectonics_deletethis@xxxxxxxxxxxxxxxxxxxxx
George <George@xxxxxxxxxx> wrote:


We've already established that andesite cannot form from peridotite.

Look for *Dehydration melting of peridotite* ignorant goose.

http://www.faqs.org/abstracts/Earth-sciences/Possible-role-of-amphibole-in-the-origin-of-andesite-some-experimental-and-natural-evidence.html

Weird question. Those old basins were closed by upductions and are now
under the form of ophiolites. The old sediments are present above the
ophiolites.

Umm, the Michigan basin is closed? It certainly is buried by kms of
sediments, but it is STILL a basin. Where are the ophiolites in the
Michigan basin?

According to you, the michigan basin is oceanic in nature? Do you
remeber that we're dicussing ocanic basin or is it alzheimer again?

Absolutely. The Michigan basin is full of salt. Where in the hell do you
think all that salt came from? The basement of the basin is a rift composed
of basalt. Same for the Illinois basin and the Appalachian basin. Next.

George


.

Relevant Pages

  • Re: The Great Lakes. Whats the real deal?
    ... salts and other precipitates were deposited inside the basin. ... for lake superior the genesis is much older. ... contact the " michigan basin geological society "for more info. my info ... I'm sure that you've heard of tilted rocks before. ...
    (sci.geo.geology)
  • Re: The Great Lakes. Whats the real deal?
    ... salts and other precipitates were deposited inside the basin. ... for lake superior the genesis is much older. ... contact the " michigan basin geological society "for more info. my info ... indicated by streamlined features. ...
    (sci.geo.geology)
  • Re: ALL the oceanic crust is recycled in 180 My: unrealistic
    ... "The basaltic andesite composition of the uppermostmantle crust results ... the Michigan basin is closed? ... simply because the Earth was much smaller and grew at a slower ...
    (sci.geo.geology)
  • Re: The Great Lakes. Whats the real deal?
    ... salts and other precipitates were deposited inside the basin. ... deposits are very near the surface at the outer edges of the basin (lk ... for lake superior the genesis is much older. ... contact the " michigan basin geological society "for more info. my info ...
    (sci.geo.geology)
  • Re: ALL the oceanic crust is recycled in 180 My: unrealistic
    ... under the form of ophiolites. ... The old sediments are present above the ... the Michigan basin is closed? ... elle subit une forte opposition. ...
    (sci.geo.geology)
Quantcast