When we average our results over each geological interval, we obtain remarkably similar values of 0.26 percent modern carbon (pmc) for Eocene, 0.21 pmc for Cretaceous, and 0.27 pmc for Pennsylvanian.
Although the number of samples is small, we observe little difference in C level as a function of position in the geological record.
The only consistent way to interpret the geological record in light of this event is to understand that fossil-bearing rocks are the result of a massive global Flood that occurred only a few thousand years ago and lasted but a year.
This Biblical interpretation of the rock record implies that the animals and plants preserved as fossils were all contemporaries.
The Bible, by contrast, paints a radically different picture of our planet's history.
In particular, it describes a time when God catastrophically destroyed the earth and essentially all its life.
A key technical advance, which occurred about 25 years ago, involved the ability to measure the ratio of C ratio from approximately 1% of the modern value to about 0.001%, extending the theoretical range of sensitivity from about 40,000 years to about 90,000 years.