Thank you so much for this! I have defended this claim by YEC's on the basis of the yardstick explanation for a long time, nice to know it is false altogether! It falls by the wayside like the claims of a living snail 3,000 years old.
For those unfamiliar a study was done to calibrate C14 samples from freshwater fossils from regions with depleted C14 in groundwater. Since mollusks absorb calcium carbonate from water, the analysis of living mollusks was conducted to calibrate C14 dates of older strata from the same region. The brilliance of this study is that it enabled us to C14 date freshwater sites worldwide. YEC's took a great scientific study, like the diamonds, and turned it into a negative.
"I have seen so far because I have stood on the bloated corpses of my competitors" - Dr Burgess Bowder