No, It aint Dan, but you sure shocked me, Now I wish i posted the original link!
I dont go to Hovind's site because he tends to make a joke out of Creationism in his videos.
I agree with his premises, but not his methods of presentation, so, I dont go there on purpose.
For that post all I did was a google search, and these comments about living mollusks is much older than Hovinds website.
I dont have my Creation library anymore,I donated it to the Church library, so, I have nothing in my apt anymore to look up the original source where I first read it.
I just did another search and cant find the page highlighted!
I went to the Hovind link, it was definitely not that link, the page had more of a TalkOrigins look to it, not he greaybackground.
Dont remember the exact words I used to search, but here is another one, just now.
http://www.google.as/search?q=carbon+dating+evolution+mollusks&hl=en&rls=GGLD%2CGGLD%3A2003-34%2CGGLD%3Aen
This has plenty of articles I could have posted from also.
Carbon dating is flawed. Wood freshly cut out of living trees has been carbon dated at 10,000 years, and living mollusks (such as snails) dated at 2,300 years. Carbon dating falsely assumes a constant rate of decay.
B. Huber, "Recording Gaseous Exchange Under Field Conditions," in Physiology of Forest Trees, ed. by K.V. Thimann, 1958; M. Keith and G. Anderson, "Radiocarbon Dating: Fictitious Results with Mollusk Shells," in Science, 141, 1963, p. 634
excerpted:
THE PROBLEMS WITH
CARBON-14 DATING
Carbon-14 dating is the standard method used by scientists to determine the age of certain fossilized remains. As scientists will often claim something to be millions or billions of years old (ages that do not conform to the Biblical account of the age of the earth), Christians are often left wondering about the accuracy of the carbon-14 method. The truth is, carbon-14 dating (or radiocarbon dating, as it’s also called) is not a precise dating method in many cases, due to faulty assumptions and other limitations on this method.
Carbon has a weight of twelve atomic mass units (AMU’s), and is the building block of all organic matter (plants and animals). A small percentage of carbon atoms have an atomic weight of 14 AMU’s. This is carbon-14. Carbon-14 is an unstable, radioactive isotope of carbon 12. As with any radioactive isotope, carbon-14 decays over time. The half-life of carbon 14 is approximate 5,730 years. That means if you took one pound of 100 percent carbon-14, in 5,730 years, you would only have half a pound left.
Carbon-14 is created in the upper atmosphere as nitrogen atoms are bombarded by cosmic radiation. For every one trillion carbon-12 atoms, you will find one carbon-14 atoms. The carbon-14 that results from the reaction caused by cosmic radiation quickly changes to carbon dioxide, just like normal carbon-12 would. Plants utilize, or “breath in” carbon dioxide, then ultimately release oxygen for animals to inhale. The carbon-14 dioxide is utilized by plants in the same way normal carbon dioxide is. This carbon-14 dioxide then ends up in humans and other animals as it moves up the food chain.
There is then a ratio of carbon-14 to carbon-12 in the bodies of plants, humans, and other animals that can fluctuate, but will be fixed at the time of death. After death, the carbon-14 would begin to decay at the rate stated above. In 1948, Dr. W.F. Libby introduced the carbon-14 dating method at the University of Chicago. The premise behind the method is to determine the ratio of carbon-14 left in organic matter, and by doing so, estimate how long ago death occurred by running the ratio backwards. The accuracy of this method, however, relies on several faulty assumptions.
First, for carbon-14 dating to be accurate, one must assume the rate of decay of carbon-14 has remained constant over the years. However, evidence indicates that the opposite is true. Experiments have been performed using the radioactive isotopes of uranium-238 and iron-57, and have shown that rates can and do vary. In fact, changing the environments surrounding the samples can alter decay rates.
The second faulty assumption is that the rate of carbon-14 formation has remained constant over the years. There are a few reasons to believe this assumption is erroneous. The industrial revolution greatly increased the amount of carbon-12 released into the atmosphere through the burning of coal. Also, the atomic bomb testing around 1950 caused a rise in neutrons, which increased carbon-14 concentrations. The great flood which Noah and family survived would have uprooted and/or buried entire forests. This would decrease the release of carbon-12 to the atmosphere through the decay of vegetation.
Third, for carbon-14 dating to be accurate, the concentrations of carbon-14 and carbon-12 must have remained constant in the atmosphere. In addition to the reasons mentioned in the previous paragraph, the flood provides another evidence that this is a faulty assumption. During the flood, subterranean water chambers that were under great pressure would have been breached. This would have resulted in an enormous amount of carbon-12 being released into the oceans and atmosphere. The effect would be not unlike opening a can of soda and having the carbon dioxide fizzing out. The water in these subterranean chambers would not have contained carbon-14, as the water was shielded from cosmic radiation. This would have upset the ratio of carbon-14 to carbon-12.
http://www.contenderministries.org/evolution/carbon14.php