The number 14 in carbon 14 dating
These results were discussed in a recent Mary Schweitzer’s results shows that essentially all the remaining material in the dinosaur bone is original because she had no trouble finding these young appearing proteins.
If there had been contamination, then it would have introduced other substances into the soft tissue.
Here are more quotations from the Science article referenced above:, Schweitzer, her postdoc Elena Schroeter, and colleagues report that they did a complete makeover of their 2009 experiment to rule out any possible contamination. Schroeter even went so far as to break down the mass spectrometer piece by piece, soak the whole thing in methanol to remove any possible contaminants, and reassemble the machine. Just how those collagen sequences survived for tens of millions of years is not clear.
“About the only thing that is the same [as the 2009 experiments] is the dinosaur,” Schweitzer says. Meanwhile, Schweitzer’s team is going beyond collagen.
Perhaps there was less C14 produced in the past, which would imply that even the relatively young C14 dates are too old. The C14/C12 ratio of living things and organic matter on the surface of the earth is about the same as in the atmosphere because carbon is constantly exchanged between living things and the atmosphere.
After an organism dies, if it is buried and left undisturbed, the C14 in it gradually decays into nitrogen 14. Thus the ratio of C 14 to C12 in the remains of the organism gradually decreases with time.
Thus, measuring the ratio of D to L in a sample enables one to estimate how long ago the specimen died.
This dating method is considered to be accurate for ages up to several hundred thousand years.
Carbon 14 is an isotope of carbon with two extra neutrons in the nucleus. The rate at which this happens varies to some extent.Organic matter in the fossil record generally dates by carbon 14 (C14) dating to about 20,000 to 40,000 years. Many creationists believe that radioactive decay was faster in the past.Other radioactive dating methods such as potassium/argon (K/Ar), rubidium/strontium (Rb/Sr), uranium/lead (U/Pb), thorium/lead (Th/Pb) and others that are based on decay of longer-lived isotopes often give ages in the millions or hundreds of millions of years for these fossils. However, in this talk I want to concentrate on reasons to believe the C14 dates are more accurate and that they give evidence that all life on earth is very young.Here are some specific results along this line; many more could be cited.These were taken from a conference in 2012Fossils, coal, oil, natural gas, limestone, marble, and graphite from every Flood-related rock layer—and even some pre-Flood deposits—have all contained measurable quantities of radiocarbon.
Search for the number 14 in carbon 14 dating:
In 20,000 years the concentration of C14 decreases by a factor of 0.089 (to less than a tenth) because (1/2) or about 7 billion C14 atoms in a mole of C12.