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Radiocarbon in diamonds: enemy of billions of years

 

Carbon

What do hard sparkling diamonds and dull soft pencil ‘lead’ have in common? They are both forms (allotropes) of carbon. Most carbon atoms are 12 times heavier than hydrogen (12C), about one in 100 is 13 times heavier (13C), and one in a trillion (1012) is 14 times heavier (14C). Of these different types (isotopes) of carbon, 14C is called radiocarbon, because it is radioactive—it breaks down over time.

Radiocarbon dating

Some try to measure age by how much 14C has decayed. Many people think that radiocarbon dating proves billions of years.1 But evolutionists know it can’t, because 14C decays too fast. Its half-life (t½) is only 5,730 years—that is, every 5,730 years, half of it decays away. After two half lives, a quarter is left; after three half lives, only an eighth; after 10 half lives, less than a thousandth is left.2 In fact, a lump of 14C as massive as the earth would have all decayed in less than a million years.3

So if samples were really over a million years old, there would be no radiocarbon left.

 

Diamonds

Diamond is the hardest substance known, so its interior should be very resistant to contamination. Diamond requires very high pressure to form—pressure found naturally on earth only deep below the surface. Thus they probably formed at a depth of 100–200 km. Geologists believe that the ones we find must have been transported supersonically5 to the surface, in extremely violent eruptions through volcanic pipes. Some are found in these pipes, such as kimberlites, while other diamonds were liberated by water erosion and deposited elsewhere (called alluvial diamonds). According to evolutionists, the diamonds formed about 1–3 billion years ago.5

 

Dating diamonds

Geophysicist Dr John Baumgardner, part of the RATE research group,6 investigated 14C in a number of diamonds.7 There should be no 14C at all if they really were over a billion years old, yet the radiocarbon lab reported that there was over 10 times the detection limit. Thus they had a radiocarbon ‘age’ far less than a million years! Dr Baumgardner repeated this with six more alluvial diamonds from Namibia, and these had even more radiocarbon.

The presence of radiocarbon in these diamonds where there should be none is thus sparkling evidence for a ‘young’ world, as the Bible records.

Objections (technical) and answers

  1. The 14C readings in the diamonds are the result of background radiation in the detector. This shows that the objector doesn’t even understand the method. AMS doesn’t measure radiation but counts atoms. It was the obsolete scintillation method that counted only decaying atoms, so was far less sensitive. In any case, the mean of the 14C/C ratios in Dr Baumgardner’s diamonds was close to 0.12±0.01 pMC, well above that of the lab’s background of purified natural gas (0.08 pMC).
  2. The 14C was produced by U-fission (actually it’ cluster decay of radium isotopes that are in the uranium decay chain). This was an excuse proposed for 14C in coal, also analysed in Dr Baumgardner’s paper, but not possible for diamonds. But to explain the observed 14C, then the coal would have to contain 99% uranium, so colloquial parlance would term the sample ‘uranium’ rather than ‘coal’.1
  3. The 14C was produced by neutron capture by 14N impurities in the diamonds. But this would generate less than one ten-thousandth of the measured amount even in best case scenarios of normal decay. And as Dr Paul Giem points out:

    ‘One can hypothesize that neutrons were once much more plentiful than they are now, and that is why there is so much carbon-14 in our experimental samples. But the number of neutrons required must be over a million times more than those found today, for at least 6,000 years; and every 5,730 years that we put the neutron shower back doubles the number of neutrons required. Every time we halve the duration of the neutron shower we roughly double its required intensity. Eventually the problem becomes insurmountable. In addition, since nitrogen-14 captures neutrons 110,000 times more easily than does carbon-13, a sample with 0.000 0091% nitrogen should have twice the carbon-14 content of a sample without any nitrogen. If neutron capture is a significant source of carbon-14 in a given sample, radiocarbon dates should vary wildly with the nitrogen content of the sample. I know of no such data. Perhaps this effect should be looked for by anyone seriously proposing that significant quantities of carbon-14 were produced by nuclear synthesis in situ.’2

    Also, if atmospheric contamination were responsible, the entire carbon content would have to be exchanged every million years or so. But if this were occurring, we would expect huge variations in radiocarbon dates with porosity and thickness, which would also render the method useless.1 Dr Baumgardner thus first thought that the 14C must have been there right from the beginning. But if nuclear decay were accelerated, say a recent episode of 500 million years worth, it could explain some of the observed amounts. Indeed, his RATE colleagues have shown good evidence for accelerated decay in the past, which would invalidate radiometric dating.

  4. The 14C ‘dates’ for the diamonds of 55,700 years were still much older than the biblical timescale. This misses the point: we are not claiming that this ‘date’ is the actual age; rather, if the earth were just a million years old, let alone 4.6 billion years old, there should be no 14C at all! Another point is that the 55,700 years is based on an assumed 14C level in the atmosphere. Since no one, creationist or evolutionist, thinks there has been an exchange of carbon in the diamond with the atmosphere, using the standard formula for 14C dating to work out the age of a diamond is meaningless. Also, 14C dating assumes that the 14C/C ratio has been constant. But the Flood must have buried huge numbers of carbon-containing living creatures, and some of them likely formed today’s coal, oil, natural gas and some of today’s fossil-containing limestone. Studies of the ancient biosphere indicate that there was several hundred times as much carbon in the past, so the 14C/C ratio would have been several hundred times smaller. This would explain the observed small amounts of 14C found in ‘old’ samples that were likely buried in the Flood.

Reference

  1. Rotta, R.B., Evolutionary explanations for anomalous radiocarbon in coal? Creation Research Society Quarterly 41(2):104–112, September 2004. 14C in coal was reported by: Baumgardner, J., Humphreys, D., Snelling, A. and Austin, S., The Enigma of the Ubiquity of 14C in Organic Samples Older Than 100 ka, Eos Transactions of the American Geophysical Union 84(46), Fall Meeting Suppl., Abstract V32C-1045, 2003. And also: Lowe, D., Problems associated with the use of coal as a source of 14C free background material, Radiocarbon 31:117–120, 1989.
  2. Giem, P., Carbon-14 content of fossil carbonOrigins 51:6–30 (2001); http://www.grisda.org/origins/51006.htm.

From: Creation Ministries site

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