| Creation Ex Nihilo Technical Journal, 12, 287.    I welcome the opportunity to clarify some important issues concerning my 
        polonium halo research. Because of space limitations, I respond only to 
        Wise's most serious omissions and errors of fact.
 For over thirty 
          years I have been publishing experimental results verifying that Po 
          halos in granites and other crystalline rocks did not originate with 
          secondary Po from U decay, but instead with primordial Po, and hence 
          constitute prima facie evidence of almost instant creation of those 
          rocks.1-8 What is most revealing about Wise's attempts to cast doubt 
          on the primordial nature of these halos is that he repeatedly ignores 
          the published scientific evidence which contradicts what he is attempting 
          to establish. As I will now show, what all this means is that the creation 
          implications of Po halos in granites now shines brighter than ever. Consider first, 
          for example, that in my 1967 Nature report,1 I published that fossil 
          and neutron-induced fission tracks appear in U-halo centers in biotite, 
          but are absent from Po-halo centers, thus excluding U-bearing solutions 
          as the source of Po for those halos, irrespective of whether they occur 
          along tiny conduits--i. e., microscopic-sized microchannels--or whether 
          they occur in defect-free areas of the biotite where there are no cracks 
          nearby.  In sections 4d,e 
          Wise essentially ignores these results and attempts to link Po halos 
          in granites with secondary Po by assuming, as fact, the whimsical claim 
          he made in section 2c -- namely that it is impossible to avoid cracks 
          in biotite. The reason Wise is so dogmatic about the existence of cracks 
          is that he absolutely must have them to have any hope of justifying 
          the passage of the hypothesized secondary Po atoms from some distant 
          U source to the Po halo centers. In one instance he uses 'cracks' to 
          mean conduits along a basal cleavage plane, and in another instance 
          to mean visible erratic features associated with separations between 
          the cleavage planes. I now cite evidence showing that in both cases 
          Wise seriously errs in claiming it is impossible to avoid cracks in 
          biotite. First of all, 
          anyone who wishes to do so may easily view spectacularly beautiful Po halos 
          in clear, conduit-free or crack-free areas in micas in the color-photo 
          catalog in my book. There, contrary to Wise's other claim, they can 
          also find Po halos in fluorite separate from conduits. Secondly, the 
          vast majority of perfect crystals of biotite - and I have worked with 
          a very large number of them - do not exhibit basal cleavage separations 
          unless something is done in splitting the mica in specimen preparation. 
          This I have demonstrated both by visual inspection before and after 
          prolonged immersion of the crystals into an aqueous dye solution before 
          proceeding with either peeling the biotite with scotch tape, or mechanically 
          with a sharp blade. Either of these procedures can induce cleavage separations, 
          but it is a non sequitur to imply - as Wise implicitly does - that these 
          experimentally-induced separations are the norm for the original unstressed 
          crystals. Clearly, an investigator can always choose perfect, defect-free 
          crystals to search for halos if he takes care to do so. But Po halos 
          in defect-free areas disprove Wise's claim that it is impossible to 
          get away from cracks in the biotite; this result in itself shows that 
          his speculations about the secondary origin of Po halos in biotite, 
          as described in his section 4, are without any scientific foundation. 
          And there is more. In a 1968 Science 
          report2 I published a definitive study showing that fossil alpha-recoil 
          (α-recoil) analysis of many Po-containing mica specimens revealed no 
          excess of α radioactivity near Po-halo centers. The purpose of the study 
          was to test whether there was any evidence for any migration/movement/diffusion 
          of any hypothetical α-emitting precursors toward the Po centers. Such 
          movement would necessarily have been accompanied by the α decay of such 
          emitters as they moved toward the Po-halo centers along the same cleavage 
          plane containing the centers. The recoil nucleus from any α decay produces 
          a tiny recoil pit, or track, which is rendered visible by an HF acid 
          etch of the basal cleavage plane. In my study I measured the fossil 
          alpha recoil density in the basal cleavage planes above, below, and 
          through the Po halo centers. What one observes in these three areas 
          near the Po halo centers is the same α-recoil track density that is 
          common throughout the mica; the background density is due to the α recoils 
          from the parts-per-million (ppm) concentrations of U and Th.  I performed 
          about a hundred experiments, which showed that 'excess' α-recoil tracks 
          do not exist near Po-halo centers. In his section 4e, Wise attempts 
          to cast this result in doubt by claiming the absence of excess track 
          density is only apparent. Experiments show this is false. The excess 
          is truly absent. It is wrong to say the excess is only apparently absent. 
          Movement of any hypothetical α-emitting precursors toward the Po halo 
          centers would have left an excess of fossil α tracks in their wake. 
          And the excess would have been huge, for well-developed Po halos show 
          coloration corresponding to the decay of five billion Po atoms. These 
          results unequivocally disprove the hypothesis that Po halos in granites 
          originated from secondary radioactivity, showing instead that they originated 
          with primordial Po.  Neither Wise 
          nor anyone else has ever ventured to challenge these results in the 
          established scientific literature. Evolutionists would gladly have done 
          this if possible to do so, for the absence of excess α-recoil tracks 
          unambiguously shows there was no migration/diffusion of radioactivity 
          feeding the halo centers, thus powerfully disproving the secondary hypothesis 
          for the origin of Po halos in granites. And there is still more.  In the early 
          seventies, I published results on the ion microprobe analyses of Po-halo 
          centers in granitic micas.3-5 My book6 discusses why the 
					206Pb:207Pb 
          ratios reported therein are uniquely traceable to the radiogenic decay 
          of primordial Po. Wise mentions neither these reports nor my book.6 
          Nor does he mention my 1974 Science report,7 which showed quite definitively 
          that 218Po halos do not have a halo ring from 222Rn. This observation 
          rules out a secondary origin of Po halos, thus proving from a completely 
          different perspective that such halos could not have formed from secondary 
          radioactivity derived from U decay, but instead originated with primordial 
          218Po. Wise's failure to mention any of this raises serious questions 
          about his methodology in evaluating the implications of Po halos in 
          granites as they relate to Earth's instant creation.  Similar but 
          far more serious methodological questions arise because of his failure 
          to reference the discoveries in my 1976 Science report.8 That is, since 
          Wise contends (section 1) that Po halos in granite-type crystalline 
          rocks must somehow be halos that formed from secondary Po activity derived 
          from U decay, and hence would supposedly - in his way of thinking - 
          have their origin in a Flood-related event, one would have surely thought 
          Wise would have discussed my discovery of secondary 210Po halos in coalified 
          wood from the Colorado Plateau,8 which are very clearly Flood-related 
          specimens.  As I note in 
          my book,6 there are enormous differences between the primordial Po halos 
          in granite-type crystalline rocks, and the secondary Po halos in coalified 
          wood. In granite, the typical U concentration is in the ppm range. In 
          coalified wood it can amount to several percent, more than a thousand 
          times that in granite. In granite, except in unusual circumstances, 
          U-daughter migration is restricted to solid state diffusion, an extremely 
          slow process. In contrast, my 1976 Science report8 presented evidence 
          showing that U daughters in solution were quickly transported through 
          a gel-like wood matrix, thus providing opportunity for rapid collection 
          of secondary 210Po in lead selenide sites. This is how secondary 210Po 
          halos formed. Later this gel-like wood turned to coal with the halos 
          still intact.  Now in granite 
          there are four different types of Po halos; on occasion two or three 
          types can be seen microscopically in the same specimen of mica. This 
          situation is virtually impossible to reconcile with the hypothesis that 
          such halos formed from U-decay products because the different Po-isotope 
          half-lives mean that greatly different quantities of each isotope will 
          coexist. In particular, since the expected amounts are directly proportional 
          to the different half-lives, this means that at any given time the atomic 
          ratio 210Po:218Po should be about 67,000:1. Thus, if Po halos in biotites 
          were from secondarily-derived Po from U decay, there should exist about 
          67,000 210Po halos for each 218Po halo. This is definitely not the case. 
          In some mica specimens the number of 218Po or 214Po halos far outnumbers 
          the 210Po halos.  On the other 
          hand, this extraordinary large abundance of 210Po halos agrees with 
          what I discovered in the coalified wood specimens.8 Moreover, in examining 
          thousands of secondary Po halos in coalified wood, I have yet to find 
          a clear example of either a 214Po or 218Po halo. To summarize, the reason 
          for this disparity is that the 139-day half life of 210Po enabled a 
          sufficient number of these atoms to survive long enough in the gel-like 
          wood to be collected at the PbSe sites, where they decayed and formed 
          210Po halos. In contrast, the far more rapidly decaying atoms of 214Po 
          and 218Po - with respective half-lives of 164 microseconds and 3 minutes 
          - largely decayed away before they were collected at these same sites. 
          This is the reason for the absence of 214Po and 218Po halos in coalified 
          wood. That these latter two halo types failed to form naturally under 
          the very best conditions of high U-daughter concentrations - coupled 
          with rapid transport and ideal collecting sites - effectively removes 
          any scientific basis for believing they could have formed by some natural 
          process in U-poor granite.  This conclusion 
          is addtionally confirmed by the fact that primordial Po halos in granites 
          are uniquely distinguished from secondary 210Po halos in coalified wood 
          by the distinctly different 206Pb:207Pb ratios. The latter unambiguously 
          reflects an origin from U-decay products whereas the former can be traced 
          to the decay of primordial polonium. The scientific laboratory evidence 
          is clear and unequivocal: primordial polonium halos do exist in Earth's 
          foundation rocks, the granites. Biblically this is exactly what we expect 
          because their discovery in these rocks fits with the precise description 
          of the rocks God created in the beginning. 'In the beginning, LORD, 
          you laid the foundations of the earth, and the heavens are the work 
          of your hands' (Heb. 1:10).  Possibly Wise's 
          difficulty in accepting the Po-halo evidence for creation can be traced 
          to how he interprets earth history.9 The abstract of his talk at the 
          First International Conference on Creationism (1986) contains the following 
          statement: 'Geologists commonly use only three dating methods. Creationists 
          commonly claim each of these techniques is invalid. Carefully considered, 
          each technique has difficulties, but none of them can be considered 
          faulty enough to be invalid.'9 This position has enormous hidden implications 
          that need to be exposed. To say that creationists must show why dating 
          techniques are invalid actually presupposes their validity; this in 
          turn presupposes the validity of the evolutionary time scale. All this 
          is fallacious reasoning. In fact dating techniques don't date anything. 
          A 'radioactive date' is in reality only an inference obtained by interpreting 
          the ratio of the parent and daughter isotopes using the assumption of 
          uniform radioactive decay. It is indeed unfortunate that some creationists 
          have accepted this critical assumption when in fact the proven existence 
          of primordial Po halos in Earth's foundation rocks effectively disproves 
          the entire uniformitarian principle upon which all those dating techniques 
          are based.6,10-12  Despite this 
          overwhelming evidence of fiat creation, in his section 4 Wise ventures 
          from the scientific realm and joins others in wondering why, if God 
          chose to leave His fingerprints, He didn't leave other Po halo types 
          to prove instant creation. Wise says this absence seems strange to him. 
          There are many mysteries in the natural world, but I suggest this is 
          not one of them. Consider the following. Evolutionary geology holds 
          that granites with Po halos formed naturally. But in 1979, I claimed 
          this granite-Po-halo combination was a miracle of God's creation, impossible 
          to reproduce by any natural methods, and challenged the scientific community 
          to disprove it by first synthesizing a hand-size piece of granite and 
          then producing a 218Po in it.10 I repeated this challenge at the 1981 
          Arkansas creation trial,6 again at the widely-attended 1982 AAAS symposium, 
          `Evolutionists Confront Creationists,11 and since then at a number of 
          university-wide presentations, first at the University of Tennessee 
          in 1987, followed by Stetson University in 1989, Clemson University 
          in 1991, East Carolina University in 1993, Cornell University in 1996, 
          and North Carolina State University in 1997. There has been a deafening 
          silence to all these challenges.6  I believe this 
          proves conclusively that God did far more than needed to scientifically 
          validate His creatorship. So, what is truly strange to me is why some 
          evolutionists and others who question the granite-Po-halo evidence of 
          instant creation keep wondering why God didn't provide more evidence 
          for creation when, for over three decades, they continue to be baffled 
          by the Po halos which do exist in these rocks.  On the other 
          hand, I have proof that some evolutionists realize they already face 
          far more than they can handle. In November 1992 and November 1995 Dr. 
          G. Brent Dalrymple, the world-renowned evolutionary geologist who testified 
          at the 1981 Arkansas creation trial that Po halos in granites were a 
          tiny mystery that he would like to know the answer for,6 sent a pro-evolution 
          fund-raising letter to the multi-thousand members of the prestigious 
          American Geophysical Union. In both letters13 he stated something needed 
          to be done to counter the creation science movement, specifically mentioning 
          the problem that Po halos in granite was continuing to cause. In the 
          1995 letter he states the following:  'The [creation 
          science] movement is beginning to affect some college classes, too, 
          as members of "Genesis clubs" enter classrooms with disruptive (and 
          difficult to answer) questions. How would you answer a student who claims 
          that the presence of Polonium halos in granite demonstrates that granite 
          had to have formed suddenly (i.e., was specially created)?'13  Despite this 
          twice widely-publicized SOS to find a conventional answer for Po halos 
          in granites, we still hear nothing but deafening silence from evolutionists 
          on this topic. I therefore suggest that evolutionists - and all who 
          hold to a belief in an ancient, slowly-evolving earth - should not be 
          surprised when the scientific truth about God leaving His fingerprints 
          in Earth's primordial rocks begins to attract world attention. Indeed, 
          I believe God's special stones - the granites, Earth's foundation rocks 
          - will soon fulfill their special appointment with destiny as they cry 
          out (Luke 19:40) in calling men everywhere back to the worship of our 
          magnificent Creator God (Rev. 14:6-7).  References
				
					Gentry, 
              R.V. 1967. "Extinct radioactivity and the discovery of a new pleochroic 
              halo." Nature 213:487-490.
				
					Gentry, 
              R.V. 1968. "Fossil alpha-recoil analysis of certain variant radioactive 
              halos." Science 160:1228-1230.
				
					Gentry, 
              R.V. 1971. "Radiohalos: some unique Pb isotope ratios and unknown 
              alpha radioactivity." Science  173:727-731. PDF
					Gentry, 
              R.V. et al., 1973. "Ion microprobe confirmation of Pb isotope ratios 
              and search for isomer precursors in polonium radiohalos." Nature  
              244:282-283. PDF
					Gentry, 
              R.V. et al, 1974. "'Spectacle' array of 210 Po halo radiocentres in 
              biotite: a nuclear geophysical enigma. Nature  252:564-566. PDF
					Gentry, 
              R.V., 1992. Creation's Tiny Mystery , Earth Science Associates, Knoxville, 
              TN, 3rd edition. See also http://www.halos.com .
				
					Gentry, 
              R.V. 1974. "Radiohalos in radiochronological and cosmological perspective." 
              Science  184:62-66. PDF
					Gentry, 
              R.V. et al., 1976. "Radiohalos and coalified wood: new evidence relating 
              to the time of uranium introduction and coalification." Science  194:315-318.
              PDF
					Wise, 
              K., 1986. "The way geologists date!" In: The Proceedings of the First 
              International Conference on Creationism, 1:135-138, Creation Science 
              Fellowship, Pittsburgh, PA.
				
					Gentry, 
              R.V. 1979. "Time: Measure Responses." EOS, Trans. Am. Geophys. 
              Union, 60:474. PDF  RTF
					Gentry, 
              R.V. 1984. "Radiohalos in radiochronological and cosmological 
              perspective." In: "Evolutionists Confront Creationists", Proceedings 
              of the 63rd Annual Meeting of the Pacific Division. American Association 
              for the Advancement of Science  1, 38-65. HTML
					Gentry, 
              R.V. 1986. "Radioactive halos: Implications for Creation." In: 
              The Proceedings of the First International Conference on Creationism, 
              1: 89-112.
				
					Dalrymple, G. 
              Brent. November 1992 and November 1995 letters signed 
              by Dalrymple but sent out under the letterhead of the pro-evolutionist 
              National Center for Scientific Education, El-Cerrito, CA 94530. 
              The 1992 letter opens with 'Dear Fellow AGU Member' and the 1995 
              letter opens with 'Dear Fellow Geologist.' The above quote appears 
              on page 3 of the 1995 letter. PDF |