|
Posted on 04/09/2009 8:42:27 AM PDT by GodGunsGuts
Implications of Polonium Radiohalos in Nested Plutons of the Tuolumne Intrusive Suite, Yosemite, California
by Dr. Andrew Snelling and Dallel Gates
April 8, 2009
Abstract
The formation of granite plutons has conventionally been thought to be a slow process requiring millions of years from generation to cooling. Even though new mechanisms for rapid emplacement of plutons have now been proposed, radioisotope dating still dominates and dictates long timescales for pluton formation. However, a new challenge to those long timescales has arisen from radiohalos. Polonium radiohalos found in biotite flakes of granites in Yosemite National Park place severe time constraints on the formation and cooling of the granite plutons due to the short half-lives of the polonium isotopes. The biotite flakes must have formed and cooled below 150ºC before the polonium supply was exhausted and the radiohalos could be preserved, so the U decay had to be grossly accelerated and the formation of the plutons had to be within 6–10 days. Furthermore, rapid cooling of the plutons was facilitated by the hydrothermal fluid convection that rapidly generated the Po radiohalos, challenging conventional thinking that cooling is a slow process by conduction. It is evident that there were greater volumes of hydrothermal fluids in the later central intrusions of the nested plutons of the Tuolumne Intrusive Suite. So as expected, more Po radiohalos were generated in these plutons as they were sequentially intruded, confirming the hydrothermal fluid transport model for Po radiohalo formation. Thus granite pluton formation is consistent with the timescale of a young earth, and accelerated radioisotope decay renders the absolute ages for these granite plutons grossly in error...
(Excerpt) Read more at answersingenesis.org ...
I saw halos, maybe the authors are calling you an angel :o)
I understand and have a reply-Klaatu Barada Nikto
Can you break it down for me brotha?
a caveman would have hit you on the head with a club -o)
My bad.
Scientific proof of Creationism. Cool.
The author doesn’t know me very well then. HAHAHA. I try, but its unsuccessful most of the time.
“The world could’ve been made 6,000 years ago. Really, it could’ve...I’m not kidding! Stop laughing! This is not a joke!”
The superduper condensed version:
The Evos say granites take millions of years to form, these scientists present evidence that granites form VERY rapidly (i.e. years to tens of years).
This ought to put the lie once and for all to all those blindered, stiffnecked, Philistine claims about non-sequential pluton intrusion.
This is like so....way beyond my paygrade!
I don’t think that this is exactly new info.
I recall a discussion with a physicist from LRL Livermore, back around 1991 or 92, where he contended that the cooling had to have been complete in seconds, or the halos could not have formed.
“creationism”
No, no, no. It’s called `Intelligent Design’.
And I don’t go to the ‘hopper’. I visit my `Fortress of
Solitude’ where I sit and ponder matters of great import.
Like “plutons”.
Nothing like a big bowl of biotite flakes to start the your day!
That would be when he bows to kiss the Saudi king's plut-on...
|
Very crunchy, and they never become soggy in the milk!
For this to be evidence of a young Earth, you have to disregard everything but granite, and find the same evidence in all the other granite.
Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.
Big deal. We get nested plutons around here every Spring.