Carbon dating contamination
If you get your information from a can i hook up two routers together creationist source, you'd better triple-check it! Lab contamination and technique can be checked by running blanks. Topic R1 shows that the level of C-14 in the atmosphere has not varied appreciably over tens of thousands of years.
Contamination disturbs the ratio of carbon isotopes found in situ, in the sample. The rate researchers even found preliminary evidence of C-14 in diamond, which is supposedly 1 to 3 billion years old! ( Brush, 1982,.42) Since we are dealing with millions of C-14 atoms in even the smallest samples, the amount of C-14 remaining with respect to time will be an excellent approximation of an exponential decay curve. Also, any C-14 that could inadvertently be introduced to a sample during the measurement process will be negligible compared to the C-14 already present, provided that sufficiently large sample sizes (about 100 mg) are used, which is usually the case.Hovind's claim that the C-14 content of our atmosphere is in the middle of a 30,000-year buildup. Indeed, it would be absurd to speak of the half-life of a radioactive isotope if it did not have a good exponential decay curve! Or K-capture in which an orbital electron is captured by the nucleus and a proton is converted into a neutron. We are only interested in tallying the original C-14 still present in the sample, the surviving "parent" isotope. Other Isotopic Dating Techniques14. Today, the half-lives of those radioactive elements used in dating are known to a few percent by careful laboratory study.
How Good are those Young-Earth Arguments: Radiocarbon
A careful choice of samples will often minimize contamination.
The possibility of contamination of very ancient samples, is unavoidable. Reporting before a 1976 conference on past climates, Professor Minze Stuiver of the University of Washington found that magnetic ages of the lake sediments remained within what is the best dating site in south africa 500 years of the radiocarbon ages throughout the entire period. Judging from the above, it is easy to see that creationists are indulging in wild fishing expeditions. (The barrel is made deep enough so that we don't have to worry about water overflowing the rim.).Bucha, who has been able to determine, using samples of baked clay from archeological sites, what the intensity of the earth's magnetic field was at the time in question. This dating technique is inaccurate at times but its error levels are very low and certainly not inaccurate enough to be called wrong. Errors get handed down in the creationist literature like the family jewels! Radioisotopes and the Age of the Earth.
Carbon 14 and Dinosaur Bones
Partial contamination, say of a block of wood, may affect its different parts to different degrees.
Partial contamination, say of a block of wood, may affect its different parts to different degrees. Finally, when the water reaches a certain level in officers dating dispatchers the barrel, the amount of water going into the barrel is equal to the amount leaking out the perforated sides.The point is that fluctuations in the rate of C-14 production mean that at times the production rate will exceed the decay rate, while at other times the decay rate will be the larger. If an old date is reasonably accurate, they're out of business; if an old date is bad due to contamination, then muddy puddles dating they are still out of business because the true date is most likely older still. There are various methods of cleaning the material, and the activity of each rinse can be measured. The next step in Henry Morris' argument was to show that the water level in our barrel analogy was not in equilibrium, that considerably more water was coming in than leaking out. The unstable isotope is brought to Earth by atmospheric activity, such as storms, and becomes fixed in the biosphere.
Consequently, with regards to carbon -14 dating, creationists are barking up the wrong tree on the contamination issue! Evolutionists were initially able to dismiss these results because of a source of error in the earlier scintillation method of detecting C-14.( Strahler, 1987,.251). This is similar to an argument put out by Harold Slusher (1981,.45). One reason is the fact that it has a radioactive isotope and second reason is that life is based on carbon compounds. The phenomenon of radioactivity makes it possible.
|Published:||19 Nov 2018, 12:03|