Free Republic
Browse · Search
News/Activism
Topics · Post Article

To: ColdWater

Explain to me “Radio-Halo’s”?

How do some radio-isotopes with half-lives in the range of 2-3 minutes manage to leave spherical radio-halo’s in rocks of molten nature?

Most curious.


67 posted on 10/02/2009 12:18:29 PM PDT by Puckster
[ Post Reply | Private Reply | To 62 | View Replies ]


To: Puckster
Explain to me “Radio-Halo’s”?

I assume you are referring to Gentry's work ....

http://www.talkorigins.org/faqs/po-halos/gentry.html

----------------------------------

Gentry's polonium halo hypothesis for a young Earth fails, or is inconclusive for, all tests. Gentry's entire thesis is built on a compounded set of assumptions. He is unable to demonstrate that concentric haloes in mica are caused uniquely by alpha particles resulting from the decay of polonium isotopes. His samples are not from "primordial" pieces of the Earth's original crust, but from rocks which have been extensively reworked. Finally, his hypothesis cannot accommodate the many alternative lines of evidence that demonstrate a great age for the Earth. Gentry rationalizes any evidence which contradicts his hypothesis by proposing three "singularities" - one time divine interventions - over the past 6000 years. Of course, supernatural events and processes fall outside the realm of scientific investigations to address. As with the idea of variable radioactive decay rates, once Gentry moves beyond the realm of physical laws, his arguments fail to have any scientific usefulness. If divine action is necessary to fit the halo hypothesis into some consistent model of Earth history, why waste all that time trying to argue about the origins of the haloes based on current scientific theory? This is where most Creationist arguments break down when they try to adopt the language and trappings of science. Trying to prove a religious premise is itself an act of faith, not science.

74 posted on 10/02/2009 12:29:09 PM PDT by ColdWater
[ Post Reply | Private Reply | To 67 | View Replies ]

Free Republic
Browse · Search
News/Activism
Topics · Post Article


FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson