1. The 3290 B.C. date for the flood (about 5300 years ago, give or take 100 years) is explained beginning on page 482.
2. “... 223Ra nuclei occasionally, but significantly, decay with the loss not of an a-particle but of a carbon-14 (14C) fragment.” John Maddox, “Exotic Nuclear Decay Discovered,” Nature, Vol. 307, 19 January 1984, p. 207.
u H. J. Rose and G. A. Jones, “A New Kind of Natural Radioactivity,” Nature, Vol. 307, 19 January 1984, pp. 245–247.
u Today, this source of carbon-14 is small. However, during the flood, when nuclear reactions and decay were extreme, much larger amounts or carbon-14 must have been produced. [See “The Origin of Earth’s Radioactivity” on pages 378–414.]
3. “[This] unveils a previously unknown natural source of isotopes in the atmosphere, in addition to the irradiation of Earth by cosmic rays. These isotopes include nitrogen-15, carbon-13, and carbon-14, the last of which is widely used in the dating of archaeological artefacts and artworks. In fact, the contribution of thunderstorms [and the electrical activity in the earth’s crust during the flood] to Earth’s carbon-14 abundance could be comparable in some regions to that of cosmic irradiation.” Leonid Babich, “Thunderous Nuclear Reactions,” Nature, Vol. 551, 23 November 2017, p. 443.
4. Isotopes that are now known to decay by emitting a carbon-14 nucleus (plus other particles) include: francium-221, radium-221, radium-222, radium-223, radium-224, actinium-223, actinium-225, and radium-226. During the flood, abundant superheavy isotopes, which briefly formed, would have produced much more carbon-14.
5. Actually, several minor corrections are made. For example, since the Industrial Revolution began, human activity, especially the burning of fossil fuels (which contains little carbon-14), has altered the ratio of carbon-14 to carbon-12 in the atmosphere. Also, nuclear explosions in the atmosphere temporarily tripled the ratio.
6. In 1952, when Willard Libby proposed the radiocarbon dating technique, he called attention to the critical assumption that the ratio of carbon-14 to carbon-12 has been constant. He tested that assumption by making various measurements and calculating how rapidly carbon-14 was forming and decaying. Surprisingly, he saw that carbon-14 was entering the atmosphere faster than it was decaying. That meant there was much less atmospheric carbon-14 in the past. If we did not know that, we would incorrectly conclude that the lack of carbon-14 in dead animals and plants was because much time had passed and the carbon-14 had decayed.
Libby believed that his measurements were in error, because he thought the earth was so old that a balance between formation and decay must exist. (He did not know that carbon-14 is a decay product from inside the crust and is steadily leaking into the atmosphere.) He wrote:
If the cosmic radiation has remained at its present intensity for 20,000 or 30,000 years, and if the carbon reservoir has not changed appreciably in this time, then there exists at the present time a complete balance between the rate of disintegration of radiocarbon atoms and the rate of assimilation of new radiocarbon atoms for all material in the life-cycle. Willard F. Libby, Radiocarbon Dating (Chicago: University of Chicago Press, 1952), p. 8.
In 1986, Libby’s measurements were repeated with even greater accuracy. These results show that the out-of-balance condition has always been much greater than Libby believed. Even today, radiocarbon is forming 28–37% faster than it is decaying. This means that the farther one looks back in time, the greater the out-of-balance condition would have been—until the time of the flood. Changes in the atmosphere’s carbon-14 to carbon-12 ratio, from 3,500 years ago to the Industrial Revolution, have been very small, because the biosphere has so much carbon-12. [See Melvin A. Cook, “Nonequilibrium Radiocarbon Dating Substantiated,” Proceedings of the First International Conference on Creationism, Vol. 2 (Pittsburgh, Pennsylvania: Creation Science Fellowship, 1986), pp. 59–68.] This is what we would expect as a result of the flood.
u “It now appears that the C14 decay rate ... is about 30 percent less than its production rate in the upper atmosphere.” William D. Stansfield, Science of Evolution (New York: Macmillan Publishing Co., 1977), p. 83.
7. R. H. Brown, “Implications of C-14 Age vs. Depth Profile Characteristics,” Origins, Vol. 15, No. 1, 1988, pp. 19–29.
u Radiocarbon ages of seeds in ancient caves often span unreasonably long time periods, such as 2,000 years. [See, for example, Bruce D. Smith, “The Initial Domestication of Cucurbita pepo in the Americas 10,000 Years Ago,” Science, Vol. 276, 9 May 1997, pp. 932–934. Also see, Wade Roush, “Squash Seeds Yield New View of Early American Farming,” Science, Vol. 276, 9 May 1997, pp. 894–895.]
8. W. S. Glock and S. Agerter, “Anomalous Patterns in Tree Rings,” Endeavor, Vol. 22, January 1963, pp. 9–13.
9. The oldest living tree known (called the Methuselah Tree) is a bristlecone pine in the White Mountains of California. Its age—5,062 years—is remarkably close to the time of the flood, about 5,300 years ago. It should not be surprising that some trees alive today started growing soon after the flood. [See "When Was the Flood, the Exodus, and Creation?" on pages 482–484.]
u “A new record holder was recently recognized, a Pinus longaeva growing in the White Mountains of eastern California. The date on this tree was reported to me by Tom Harlan. The tree was cored by Edmund Schulman in the late 1950s but he never had a chance to date it [count the rings] before he died. Tom worked up the core only recently, and knows which tree it is. The tree is still alive, and the age given below, 5062, is the tree's age as of the growing season of 2012.” Rocky Mountain Tree-Ring Research at http://www.rmtrr.org/oldlist.htm.
10. Harold S. Gladwin, “Dendrochronology, Radiocarbon and Bristlecones,” Anthropological Journal of Canada, Vol. 14, No. 4, 1976, pp. 2–7.
11. “The entire chronology is the work of one laboratory, the director of which [C. W. Ferguson] has refused to allow critical study of the raw data.” For details, see Herbert C. Sorensen, “Bristlecone Pines and Tree-Ring Dating: A Critique,” Creation Research Society Quarterly, Vol. 13, June 1976, p. 5.
u Leading tree-ring specialists do not subject their judgments to statistical tests. In a private three-hour meeting (19 July 1989) I had with the director (Dr. Malcolm Hughes) and lead scientist (Dr. Austin Long) of the world’s largest tree-ring laboratory (University of Arizona’s Laboratory of Tree-Ring Research), both expressed no interest in doing so.
A year before, a worker in this laboratory reported that circular reasoning was used in tree-ring chronologies. Wood specimens considered for “long chronologies” are first radiocarbon dated. If a date is old enough (perhaps by an erroneous reading), tree-ring specialists then look at the “old” specimen’s ring thicknesses for a way to extend the “long chronology.” This chronology is used to assure the public that radiocarbon dating has been calibrated by a continuous sequence of tree rings. [This unsound practice is also described by Henry N. Michael and Elizabeth K. Ralph, “ ‘Quickee’ 14C Dates,” Radiocarbon, Vol. 23, No. 1, 1981, pp. 165–166.]
12. http://newgeology.us/presentation48.html
13. R. E. Taylor et al., “Major Revisions in the Pleistocene Age Assignments for North American Human Skeletons by C-14 Accelerator Mass Spectrometry,” American Antiquity, Vol. 50, No. 1, 1985, pp. 136–140.
14. “There is measurable carbon-14 in [75 samples of] material that should be ‘dead’ according to standard evolutionary theory;” Paul Giem, “Carbon-14 Content of Fossil Carbon,” Origins, Vol. 51, 2001, p. 6.
Giem addressed (on pages 6–30) possible sources of error, including contamination. He either eliminated them or determined that they were highly unlikely.
u Personal communication: Walt Brown to Paul Giem, 4 April 2000; Paul Giem to Walt Brown, 10 September 2000.
u John R. Baumgardner et al., “Measurable 14C in Fossilized Organic Materials,” Proceedings of the Fifth International Conference on Creationism (Pittsburgh, Pennsylvania: Creation Science Fellowship, Inc., 2003), pp. 127–142.
15. “Since it is believable that most fossil carbon has roughly the same 14C/C ratio, it is reasonable to conclude that all this carbon was in the biosphere at approximately the same time. In that case, since most, if not all, fossil carbon was deposited by water, the data suggest a flood of massive proportions, and that the biblical account has to be taken seriously.” Giem, pp. 26–27.