That would be one possibility but there are alternatives which are far more in line with the additional evidence pointing to an earth of 3.5-4.0 billion years old.
Janet: << But Petersen's findings suggest an alternative interpretation which, frankly, I prefer. Namely, as the readers of this LIST now understand, he shows from the loessian nodules that, under extraordinary
conditions, ponderable matter can enter our "plane" of existence, effectively from out of nowhere, along a
fourth dimension of space. >>
I disagree with this statement. He has done no such thing. Glenn has shown how Petersen is ignorant of basic knowledge concerning loess. His evidence appears to be the 'nodules' and the snails. Both are consisting of very natural products and yet he resorts to an unnatural, unobservable, unpredictable force to explain them. It might as well be the tooth fairy as far as Petersen's argument is concerned.
Janet: <<This opens the possibility that, upon an occasion, a fine dust containing polonium (among other things perhaps) materialized within the granite, which on decaying gave rise to the haloes. It is interesting to note that one must conclude that any such polonium was in effect created by that unusual event. If it had previously existed somewhere then presumably it would have already decayed--even as all
the rest of primordial polonium has long since decayed.>>
Of course presuming that these are in fact primordial polonium halos.
Janet: << I anticipate that you will scoff at this suggestion, but may I ask how you account for the polonium haloes in granitic mica?>>
I suggest you read up on this issue.
http://www.talkorigins.org/faqs/po-halos.html
"If this were so, I thought, then how could identification of halos consisting of only the Polonium isotopes be certain? There could be no way microscopically or even with an ion microprobe to distinguish between a Radon 222 --> Polonium 210 halo and a Polonium 218 --> Polonium 210 halo.>>
As well as:
http://www.csun.edu/~vcgeo005/creation.html
Finally, the presence of 218Po, 214Po, and 210Po halos only in granites and pegmatites and the absence of 216Po, 212Po, 212Po, and 211Po halos in these same rocks become understandable. Three rationales attest to this logic.
"First, the half lives of radon isotopes for the different Po isotope precursors are diagnostically different. For 222Rn in the 238U series [the source for the observed Po halos], the half life is 3.82 days. By contrast, for 219Rn in the 235U series, the half life is 3.92 seconds, and for 220Rn in the 232Th series, the half life is 54.5 seconds. The 222Rn has about 84,000 or 6,000 times as much time to enter the biotite as does 219Rn or 220Rn!"
"Second, the 216Po, 215Po, 212Po, and 211Po daughter isotopes have half lives that are measured in fractions of seconds rather than the 140 days for 210Po and 3.05 minutes for 218Po. The 210Po has over three million times the longevity of the sister series equivalents!"
"Third, the relative abundance of released 222Rn gas is proportionately much greater in most terranes than the abundances of released 219Rn and 220Rn gas."
"Therefore, the combination of extremely short half lives of 219Rn and 220Rn gas [and their daughter polonium isotopes] and the relatively small quantities generated make the formation of 216Po, 215Po, 212Po, and 211Po halos impossible. These isotopes of radon and polonium, which could produce the missing Po halos, convert to Pb isotopes so quickly that their radon gas can never travel far
from its source before decaying. Polonium from these isotopes can never migrate to and accumulate in distant biotite and fluorite in sufficient quantities to produce any halos."
So no need for a Deus Ex Machina here.