It is confusing when the maximum date for Carbon 14 is listed as 60,000 years and 80,000 years in the same article (Chapter 4 Dating Methods by Roger Patterson and the reference article summary 4.2 by Riddle.) and as 50,000 years in another (The Answers Book) as well as 95,000 years in the Creation College lecture by Dr. This is why there is the disparity in the quoted limits to radiocarbon dating, as highlighted by this inquirer.
This is due to the fact that the AMS instrument has to be calibrated, and yet the organic materials used for calibration (that are supposed to be so old they shouldn't have any detectable radiocarbon left in them) all contain so much radiocarbon that it means samples of unknown age can't yield dates above this radiocarbon barrier.
This means that we cannot figure out the age of dinosaur fossils, or any ancient mammals and reptiles.
Another one of its flaws is that it is not extremely accurate.
But the radiocarbon detected in diamonds is equivalent to ages of up to 80,000 years.
This is accomplished using wood specimens found preserved, for example, in historic buildings, or on the forest floor, or in peat bogs.Measurements have shown that in recent history, radiocarbon levels have remained relatively constant in most of the biosphere due to the metabolic processes in living organisms and the relatively rapid turnover of carbonates in surface ocean waters.The following article is abstracted from The Biblical Chronologist Volume 5, Number 1. The science of constructing chronologies from tree rings is called dendrochronology. Modern trees are known to produce one growth ring per year. (The idea that ancient trees grew more than one ring per year will be discussed below.) Therefore, by coring a living tree and counting rings from the present backwards, it is possible to determine the year in which each ring grew. The bristlecone pines in the White Mountains of California live to extremely old ages, some in excess of 4,000 years.Though this has its disadvantages, it also is an extreme breakthrough in science to merge into the past without going there.Finally, though not a huge problem, Carbon-14 and Radiocarbon Dating takes careful packaging and patience.The rings in a non-living specimen can be counted to determine the number of years the specimen spans.