Fluctuations Show Radioisotope Decay Is Unreliable | The Institute for Creation Research

Fluctuations Show Radioisotope Decay Is Unreliable
BY *  | 
FRIDAY, JULY 29, 2011

Radioactive isotopes are commonly portrayed as providing rock-solid evidence that the earth is billions of years old. Since such isotopes are thought to decay at consistent rates over time, the assumption is that simple measurements can lead to reliable ages. But new discoveries of rate fluctuations continue to challenge the reliability of radioisotope decay rates in general—and thus, the reliability of vast ages seemingly derived from radioisotope dating.

In 2009, New Scientist summarized a discovery at Brookhaven National Laboratories that revealed a statistical correlation between the distance to the sun and fluctuations in the decay rate of a radioactive silicon isotope. The data showed that silicon-32 decayed more slowly in the summer, and then sped up during the winter. A 2010 Stanford University report reflected similar fluctuations in the decay rate of other elements.1 To see whether or not nearness to the sun somehow affected these radioisotope decay rates, researchers laid a solar proximity plot atop the silicon decay plot, and they showed a close match.

Since that time, investigators have yet to discover a satisfying physical mechanism explaining how the sun might accelerate the decay of radioactive atomic nuclei.2 For example, although at the time of the Brookhaven and Stanford reports solar neutrinos were implicated, it appears that neutrinos are just too small and too few. The chances seem too slim for enough neutrinos to collide with enough radioactive atoms to have caused the observed fluctuations.

However, a new report on a separate isotope has again correlated radioisotope decay acceleration with nearness to the sun.3 The investigators locked radioactive radon-222 gas in a lead chamber and compared radioactive readouts taken from both inside and outside the chamber. The experiment was designed to test whether or not changes in radon decay rates are due to atmospheric effects such as gases mixing. The researchers found instead that significant changes were cyclical and corresponded to the relative positions of the earth and the sun.

They wrote, "Combining these observations implies a strong inter-connection between the seasonal and diurnal patterns. This in turn again implies a mutual connection to the rotation of earth around its axis and its rotation around the sun."3 The radon decay rates accelerated during the daylight hours and during the summer. Other rate fluctuations were irregular and remain mysterious.

Some unknown factor affects certain radioisotope decay rates. If this, or a similar factor, altered nuclear decay rates of the systems that are routinely used in rock dating, then any "age" determination provided by this method would have been compromised. And this is exactly what the Institute for Creation Research's project Radioisotopes and the Age of the Earth (RATE) reported in 2005.

In particular, RATE scientists found that radioisotope decay rates had been accelerated by orders of magnitude in the past and that one or more such acceleration events vastly inflated the apparent age of rocks (i.e., the age derived from the assumption that radioisotope decay has been constant through time). For example, RATE found a high accumulation of helium, a product of radioisotope decay, still trapped inside small crystals.4 If evolutionary ages are accurate, the helium should have leaked into the atmosphere millions of years ago. RATE researchers also found radiohalos and fission tracks, which are microscopic scars in minerals. Such scars could only exist if the parent isotope's decay rate had been dramatically accelerated.5

Nobody yet knows what (or who) accelerated nuclear decay in the past, just as nobody yet knows what mechanism causes the sun-related decay of silicon-32 or radon-222. But science clearly shows that radioisotope decay rates have not been constant or reliable enough to support the standard geological ages assigned to earth materials.

References

  1. Thomas, B. The Sun Alters Radioactive Decay Rates. ICR News. Posted on icr.org September 3, 2010, accessed July 25, 2011.
  2. Chaffin, E. Nuclear Half-lives and Changes in the Strength of the Nuclear Force. Presented at the Third Annual Creation Research Society Conference at Trinity Baptist College, Jacksonville, FL, July 23, 2011.
  3. Steinitz, G., O. Piatibratova and P. Kotlarsky. 2011. Possible effect of solar tides on radon signals. Journal of Environmental Radioactivity. 102 (8): 749-765.
  4. Humphreys, D. R. 2006. A Tale of Two Hourglasses. Acts & Facts. 35 (12).
  5. Snelling, A. A. 2005. Fission Tracks in Zircons: Evidence for Abundant Nuclear Decay. In Radioisotopes and the Age of the Earth: Results of a Young-Earth Creationist Research Initiative, volume 2. Vardiman, L., A. A. Snelling and E. F. Chaffin, eds. El Cajon, CA: Institute for Creation Research and Chino Valley, AZ: Creation Research Society.

* Mr. Thomas is Science Writer at the Institute for Creation Research.

Article posted on July 29, 2011.

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However, there is also independent evidence within these Norwegian eclogites of these flows of hot fluids that were responsible for the rapid metamorphism of the precursor granulites. A sample of related eclogite containing biotite flakes was closely examined and polonium-210 radiohalos were found in it (7 polonium-210 radiohalos in 50 microscope slides, each containing 20-30 biotite flakes).21 This discovery, the first time any radiohalos have been documented in eclogites, is highly significant.



	Biotite was not in the precursor granulites, so it had to form as a result of both their metamorphism to eclogite and the fluid flows. Of course, these radiohalos could only have been produced in the biotite grains after they formed. Furthermore, because there was no source of either parent uranium-238 or its radioactive decay products within either the eclogites or the precursor granulites, the large quantities of polonium-210 required to generate these radiohalos had to have been transported from external sources into the biotite flakes within these rocks by the hot fluids.22 But the polonium-210 only has a half-life of 138 days, and the radiohalos would only have formed and survived after the temperature in the rocks fell below 150°C. So this drastically restricts the duration of the earthquake-triggered hot fluid flows and associated eclogite metamorphism even more, perhaps to only a few weeks or months! And because the heat flow into the granulites to metamorphose them would have been primarily by convection associated with the fluid flows, rather than just by conduction,23 such a drastically short timescale of only weeks for this eclogite metamorphism is entirely feasible.



	Conclusion



	Of course, in conventional geological dogma which primarily envisages slow and gradual processes over long ages, even a timescale of ten years is almost too radical and controversial to be readily accepted. However, in the context of accelerated catastrophic erosion, deposition of thick strata sequences, earth movements, plate tectonics and continental collisions during the year-long global Genesis Flood, it is entirely feasible that rapid flows of hot fluids triggered by earthquakes were injected into shear zones within the granulites to transform them into eclogites within weeks. Once again, continued research has provided evidence that confirms the feasibility of another aspect of the Creation-Flood model of Earth history, namely, rapid metamorphism of rocks during the Genesis Flood, consistent with the infallible record of God's Word.



	References  


    
	
  1. 
		Bucher, K., and M. Frey, 2002. Petrogenesis of Metamorphic Rocks, 7th edition, pp. 67-68, Springer-Verlag, Berlin. 
    2. 
	
  2. 
		Snelling, A. A., 1994. "Towards a Creationist Explanation of Regional Metamorphism." Creation Ex Nihilo Technical Journal, 8(1):51-77. 
    3. 
	
  3. 
		Snelling, A. A., 1994. "Regional Metamorphism Within a Creationist Framework: What Garnet Compositions Reveal." In Proceedings of the Third International Conference on Creationism, R. E. Walsh (editor), pp. 485-496. Creation Science Fellowship, Pittsburgh, PA. 
    4. 
	
  4. 
		Kelley, S., 2005. "Hot Fluids and Cold Crusts." Nature, 435:1171. 
    5. 
	
  5. 
		Wain, A. L., D. J. Waters, and H. Austrheim, 2001. "Metastability of Granulites and Processes of Eclogitisation in the UHP Region of Western Norway." Journal of Metamorphic Geology, 19:607-623. 
    6. 
	
  6. 
		Austrheim, H., and W. L. Griffin, 1985. "Shear Deformation and Eclogite Formation within Granulite Facies Anorthosites of the Bergen Arcs, Western Norway." Chemical Geology, 50:267-281. 
    7. 
	
  7. 
		Boundy, T. M., and D. M. Fountain, 1992. "Structural Development and Petro-fabrics of Eclogite Facies Shear Zones, Bergen Arcs, Western Norway: Implications for Deep Crustal Deformational Processes." Journal of Metamorphic Geology, 10:127-146. 
    8. 
	
  8. 
		Austrheim, H., M. Erambert, and T. M. Boundy, 1996. "Garnets Record Deep Crustal Earthquakes." Earth and Planetary Science Letters, 139:223-238. 
    9. 
	
  9. 
		Austrheim, H., and T. M. Boundy, 1994. "Pseudotachylytes Generated During Seismic Faulting and Eclogitization of the Deep Crust." Science, 265:82-83. 
    10. 
	
  10. 
		Kühn, A., J. Glodny, K. Iden, and H. Austrheim, 2000. "Retention of Precambrian Rb/Sr Phlogopite Ages through Caledonian Eclogite Facies Metamorphism, Bergen Arc Complex, W-Norway." Lithos, 51:305-330. 
    11. 
	
  11. 
		Bingen, B., W. J. Davis, and H. Austrheim, 2001. "Zircon U-Pb Geochronology in the Bergen Arc Eclogites and Their Proterozoic Protoliths, and Implications for the Pre-Scandian Evolution of the Caledonides in Western Norway." Geological Society of America Bulletin, 113(5):640-649. 
    12. 
	
  12. 
		Jamtveit, B., K. Bucher-Nurminen, and H. Austrheim, 1990. "Fluid Controlled Eclogitization of Eclogites in Deep Crustal Shear Zones, Bergen Arcs, Western Norway." Contributions to Mineralogy and Petrology, 104:184-193. 
    13. 
	
  13. 
		Austrheim, H., and T. M. Boundy (1994), op. cit. 
    14. 
	
  14. 
		Camacho, A., J. K. W. Lee, B. J. Hensen, and J. Braun, 2005. "Short-lived Orogenic Cycles and the Eclogitization of Cold Crust by Spasmodic Hot Fluids." Nature, 435:1191-1196. 
    15. 
	
  15. 
		Kelley, S. (2005), op. cit. 
    16. 
	
  16. 
		Camacho, A., J. K. W. Lee, B. J. Hensen, and J. Braun (2005), op. cit. 
    17. 
	
  17. 
		Jamtveit, B., H. Austrheim, and A. Malthe-Sorenssen, 2000. "Accelerated Hydration of the Earth's Deep Crust Induced by Stress Perturbations." Nature, 408:75-78. 
    18. 
	
  18. 
		Austrheim, H., and T. M. Boundy (1994), op. cit. 
    19. 
	
  19. 
		Bjornerud, M., H. Austrheim, and M. G. Lund, 2002. "Processes Leading to Eclogitization (Densification) of Subducted and Tectonically Buried Crust." Journal of Geophysical Research, 107(B10):2252-2269. 
    20. 
	
  20. 
		VanHaren, J. L. M., J. J. Ague, and D. M. Rye, 1996. "Oxygen Isotope Record of Fluid Infiltration and Mass Transfer During Regional Metamorphism of Pelitic Schist, Connecticut, USA." Geochimica et Cosmochimica Acta, 60(18):3487-3504. 
    21. 
	
  21. 
		Snelling, A. A., 2005. "Radiohalos in Granites: Evidence for Accelerated Nuclear Decay." In Radioisotopes and the Age of the Earth: Results of a Young-Earth Creationist Research Initiative, L. Vardiman, A. A. Snelling, and E. F. Chaffin (editors), chapter 3, pp. 101-207 (especially Table 4, p. 188). Institute for Creation Research, El Cajon, CA, and Creation Research Society, Chino Valley, AZ. 
    22. 
	
  22. 
		Snelling, A. A. (2005), op. cit. 
    23. 
	
  23. 
		Snelling, A. A., and J. Woodmorappe, 1998. "The Cooling of Thick Igneous Bodies on a Young Earth." In Proceedings of the Fourth International Conference on Creationism, R. E. Walsh (editor), pp. 527-545. Creation Science Fellowship, Pittsburgh, PA.
    24. 




	* Dr. Snelling is an associate professor in the Geology Department at ICR.

    [body_edit] => 

	Where thick sequences of sedimentary rock layers have been deposited in large basins, the deepest layers at the bottoms of the sequences may subsequently have become folded by earth movements when subjected to elevated temperatures and pressures that were sufficient to transform them into metamorphic rocks. Thus the clay particles in shales and the mineral grains in sandstones were metamorphosed into the new minerals found today in schists and gneisses. Geologists conventionally envisage these metamorphic processes as having required millions of years.1



	In contrast, creation geologists maintain that just as thick sequences of sedimentary rocks were rapidly deposited and movements of the tectonic plates of the earth's crust occurred rapidly during the year-long Flood catastrophe, these associated metamorphic processes were likewise rapid. The hot waters that saturated the deeply buried sedimentary and other rocks, and/or that flowed rapidly through them, were responsible for the rapid mineral transformations.2,3



	Norwegian Metamorphic Rocks



	Conventional geologists were surprised recently by documented evidence for rapid metamorphism.4 Along the southwest coast of Norway, in the Bergen area, former igneous (intrusive) rocks were radically transformed into high-grade metamorphic rocks known as granulites by the high pressures exerted on them deep in the earth's crust late in the Precambrian.5 During a subsequent continental collision in the Silurian, hot fluids penetrated along closely-spaced shear zones, where rocks are believed to have deformed plastically as they moved sideways against each other, and transformed most of the granulites into another metamorphic rock called eclogite.6



	These eclogites are strikingly beautiful, coarse-grained, and characterized by large pink garnets in a green matrix, rich in pyroxene. They are conventionally believed to have formed at depths of some 60 km and temperatures of around 700°C.7 However, these Norwegian eclogites paradoxically exhibit features more commonly associated with tectonic processes at lower temperatures closer to the earth's surface.8,9 Furthermore, rubidium-strontium radioisotope dating of the granulite lenses immediately adjacent to these eclogites yields an "age" closer to that of the untransformed granulite,10,11 even though the temperatures supposedly required for formation of the eclogites should have obliterated that earlier "age."12 Thus it has been suggested that the Norwegian granulite-eclogite transformation must have occurred during short-lived fluid flow events over less than a million years.13



	A Radical Short Timescale



	However, a drastically shorter timescale has now been proposed,14 one that "will make many geologists draw breath!"15 An ultraviolet laser was used to measure profiles of argon-argon radioisotope "ages" across individual mineral grains in the untransformed granulite lenses.16 In this technique the abundance of argon-40 (which forms from the radioactive decay of potassium-40) supposedly indicates the elapsed time since the temperature was last high enough for the argon (a gas) to diffuse rapidly through these minerals and escape at the boundaries between grains. The "ages" thus obtained not only confirmed the earlier rubidium-strontium "dates," but demonstrated just how little the granulite lenses had been affected by the later formation of the immediately adjacent eclogites.



	Furthermore, these argon-40 data were then used to estimate what the temperature must have been in the granulite lenses during formation of the eclogites. The estimate—less than 400°C—is dramatically lower than the conventional requirement of around 700°C for formation of the immediately adjacent eclogites. The only way this glaring inconsistency can be reconciled is if the time period over which the heat was applied to these granulites during their adjacent metamorphism to eclogites was drastically shorter than the previously suggested one million years or less. It was calculated that the total heating duration must have been around only 18,000 years to explain the argon-argon "age" profiles in the mineral grains.



	However, even more radical is the conclusion from heat-conduction calculations that the individual fluid flow "events," when hot fluids (at 700°C) flowed through the shear zones in the granulites and metamorphosed them to eclogites, had to have lasted just ten years or less, otherwise there would have been significant heating beyond 400°C of the surviving granulite lenses between the shear zones. Furthermore, it was concluded that this is exactly what would be expected if fluid migration was triggered by multiple, spasmodic deformation events associated with earthquakes, in which the hot fluids were repeatedly injected into, and pumped along, the shear zones by earth movements. This is consistent with the evidence of hydraulic fracturing17 and rocks formed by friction melting along fractures18 associated with these eclogite-bearing shear zones.19 Thus this model overturns conventional long-age thinking by evoking a radically different picture for the conditions responsible for eclogite metamorphism, in which the exceedingly rapid metamorphic transformation occurs in only ten years or less!



	Confirming Evidence



	Such rapid fluid flow events are not without precedent, having been associated with vein formation during regional metamorphism of schists in Connecticut (USA).20



	However, there is also independent evidence within these Norwegian eclogites of these flows of hot fluids that were responsible for the rapid metamorphism of the precursor granulites. A sample of related eclogite containing biotite flakes was closely examined and polonium-210 radiohalos were found in it (7 polonium-210 radiohalos in 50 microscope slides, each containing 20-30 biotite flakes).21 This discovery, the first time any radiohalos have been documented in eclogites, is highly significant.



	Biotite was not in the precursor granulites, so it had to form as a result of both their metamorphism to eclogite and the fluid flows. Of course, these radiohalos could only have been produced in the biotite grains after they formed. Furthermore, because there was no source of either parent uranium-238 or its radioactive decay products within either the eclogites or the precursor granulites, the large quantities of polonium-210 required to generate these radiohalos had to have been transported from external sources into the biotite flakes within these rocks by the hot fluids.22 But the polonium-210 only has a half-life of 138 days, and the radiohalos would only have formed and survived after the temperature in the rocks fell below 150°C. So this drastically restricts the duration of the earthquake-triggered hot fluid flows and associated eclogite metamorphism even more, perhaps to only a few weeks or months! And because the heat flow into the granulites to metamorphose them would have been primarily by convection associated with the fluid flows, rather than just by conduction,23 such a drastically short timescale of only weeks for this eclogite metamorphism is entirely feasible.



	Conclusion



	Of course, in conventional geological dogma which primarily envisages slow and gradual processes over long ages, even a timescale of ten years is almost too radical and controversial to be readily accepted. However, in the context of accelerated catastrophic erosion, deposition of thick strata sequences, earth movements, plate tectonics and continental collisions during the year-long global Genesis Flood, it is entirely feasible that rapid flows of hot fluids triggered by earthquakes were injected into shear zones within the granulites to transform them into eclogites within weeks. Once again, continued research has provided evidence that confirms the feasibility of another aspect of the Creation-Flood model of Earth history, namely, rapid metamorphism of rocks during the Genesis Flood, consistent with the infallible record of God's Word.



	References  


    
	
  1. 
		Bucher, K., and M. Frey, 2002. Petrogenesis of Metamorphic Rocks, 7th edition, pp. 67-68, Springer-Verlag, Berlin. 
    2. 
	
  2. 
		Snelling, A. A., 1994. "Towards a Creationist Explanation of Regional Metamorphism." Creation Ex Nihilo Technical Journal, 8(1):51-77. 
    3. 
	
  3. 
		Snelling, A. A., 1994. "Regional Metamorphism Within a Creationist Framework: What Garnet Compositions Reveal." In Proceedings of the Third International Conference on Creationism, R. E. Walsh (editor), pp. 485-496. Creation Science Fellowship, Pittsburgh, PA. 
    4. 
	
  4. 
		Kelley, S., 2005. "Hot Fluids and Cold Crusts." Nature, 435:1171. 
    5. 
	
  5. 
		Wain, A. L., D. J. Waters, and H. Austrheim, 2001. "Metastability of Granulites and Processes of Eclogitisation in the UHP Region of Western Norway." Journal of Metamorphic Geology, 19:607-623. 
    6. 
	
  6. 
		Austrheim, H., and W. L. Griffin, 1985. "Shear Deformation and Eclogite Formation within Granulite Facies Anorthosites of the Bergen Arcs, Western Norway." Chemical Geology, 50:267-281. 
    7. 
	
  7. 
		Boundy, T. M., and D. M. Fountain, 1992. "Structural Development and Petro-fabrics of Eclogite Facies Shear Zones, Bergen Arcs, Western Norway: Implications for Deep Crustal Deformational Processes." Journal of Metamorphic Geology, 10:127-146. 
    8. 
	
  8. 
		Austrheim, H., M. Erambert, and T. M. Boundy, 1996. "Garnets Record Deep Crustal Earthquakes." Earth and Planetary Science Letters, 139:223-238. 
    9. 
	
  9. 
		Austrheim, H., and T. M. Boundy, 1994. "Pseudotachylytes Generated During Seismic Faulting and Eclogitization of the Deep Crust." Science, 265:82-83. 
    10. 
	
  10. 
		Kühn, A., J. Glodny, K. Iden, and H. Austrheim, 2000. "Retention of Precambrian Rb/Sr Phlogopite Ages through Caledonian Eclogite Facies Metamorphism, Bergen Arc Complex, W-Norway." Lithos, 51:305-330. 
    11. 
	
  11. 
		Bingen, B., W. J. Davis, and H. Austrheim, 2001. "Zircon U-Pb Geochronology in the Bergen Arc Eclogites and Their Proterozoic Protoliths, and Implications for the Pre-Scandian Evolution of the Caledonides in Western Norway." Geological Society of America Bulletin, 113(5):640-649. 
    12. 
	
  12. 
		Jamtveit, B., K. Bucher-Nurminen, and H. Austrheim, 1990. "Fluid Controlled Eclogitization of Eclogites in Deep Crustal Shear Zones, Bergen Arcs, Western Norway." Contributions to Mineralogy and Petrology, 104:184-193. 
    13. 
	
  13. 
		Austrheim, H., and T. M. Boundy (1994), op. cit. 
    14. 
	
  14. 
		Camacho, A., J. K. W. Lee, B. J. Hensen, and J. Braun, 2005. "Short-lived Orogenic Cycles and the Eclogitization of Cold Crust by Spasmodic Hot Fluids." Nature, 435:1191-1196. 
    15. 
	
  15. 
		Kelley, S. (2005), op. cit. 
    16. 
	
  16. 
		Camacho, A., J. K. W. Lee, B. J. Hensen, and J. Braun (2005), op. cit. 
    17. 
	
  17. 
		Jamtveit, B., H. Austrheim, and A. Malthe-Sorenssen, 2000. "Accelerated Hydration of the Earth's Deep Crust Induced by Stress Perturbations." Nature, 408:75-78. 
    18. 
	
  18. 
		Austrheim, H., and T. M. Boundy (1994), op. cit. 
    19. 
	
  19. 
		Bjornerud, M., H. Austrheim, and M. G. Lund, 2002. "Processes Leading to Eclogitization (Densification) of Subducted and Tectonically Buried Crust." Journal of Geophysical Research, 107(B10):2252-2269. 
    20. 
	
  20. 
		VanHaren, J. L. M., J. J. Ague, and D. M. Rye, 1996. "Oxygen Isotope Record of Fluid Infiltration and Mass Transfer During Regional Metamorphism of Pelitic Schist, Connecticut, USA." Geochimica et Cosmochimica Acta, 60(18):3487-3504. 
    21. 
	
  21. 
		Snelling, A. A., 2005. "Radiohalos in Granites: Evidence for Accelerated Nuclear Decay." In Radioisotopes and the Age of the Earth: Results of a Young-Earth Creationist Research Initiative, L. Vardiman, A. A. Snelling, and E. F. Chaffin (editors), chapter 3, pp. 101-207 (especially Table 4, p. 188). Institute for Creation Research, El Cajon, CA, and Creation Research Society, Chino Valley, AZ. 
    22. 
	
  22. 
		Snelling, A. A. (2005), op. cit. 
    23. 
	
  23. 
		Snelling, A. A., and J. Woodmorappe, 1998. "The Cooling of Thick Igneous Bodies on a Young Earth." In Proceedings of the Fourth International Conference on Creationism, R. E. Walsh (editor), pp. 527-545. Creation Science Fellowship, Pittsburgh, PA.
    24. 




	* Dr. Snelling is an associate professor in the Geology Department at ICR.

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