Not knowing if anomalies are always published makes this harder. It is often mentioned that different methods free online dating friendship on the K-T boundary, dated at about 65 million years ago. This is when the dinosaurs are assumed to have become extinct. This agreement of different methods is taken as evidence for a correlation between methods on the geologic column. One study found some correlated dates from bentonite that are used to estimate the date of the K-T boundary.
I looked up some information on bentonite. It is composed of little glass beads that come from volcanic ash.
When one adds in the fact that many anomalies are unreported, which he gives evidence for, the true distribution is anyone's guess.
There have been criticisms of John Woodmorappe's study, but no one has given any figures from the literature for the true percentage of anomalies, with a definition of an anomaly, or the degree of correlation between methods.
Steven Schimmrich's review of this study often concerns itself with John W's presentation of geologists explanation for anomalies, and not with the percentage of anomalies; the later is my main concern.
The carbon age of the buried trees is only years, but some of the overlying volcanic material has a ,year potassium-argon age. A similar situation is reported in the December issue of Creation ex nihilo in which lava with a K-Ar age of about 45 million years overlays wood that was carbon dated by 3 laboratories using AMS dating to about 35, years.
Still another evidence for problems with radiometric dating was given in a recent talk I attended by a man who had been an evolutionist and taken a course in radiometric dating. The teacher gave 14 assumptions of radiometric dating and said something like ""If creationists got a hold of these, they could cut radiometric dating to pieces.