Limitations of radiometric dating
It is these highly consistent and reliable samples, rather than the tricky ones, that have to be falsified for "young Earth" theories to have any scientific plausibility, not to mention the need to falsify huge amounts of evidence from other techniques.
This document is partly based on a prior posting composed in reply to Ted Holden.
Relative dating and radiometric dating are used to determine age of fossils and geologic features, but with different methods.
Relative dating uses observation of location within rock layers, while radiometric dating uses data from the decay of radioactive substances within an object.
In this situation, the cave contents are younger than both the bedrock below the cave and the suspended roof above.
However, note that because of the "principle of cross-cutting relationships", careful examination of the contact between the cave infill and the surrounding rock will reveal the true relative age relationships, as will the "principle of inclusion" if fragments of the surrounding rock are found within the infill.
Most of these principles were formally proposed by Nicolaus Steno (Niels Steensen, Danish), in 1669, although some have an even older heritage that extends as far back as the authors of the Bible.Scientists measure the proportion of carbon-14 left in the organism to determine its age.his document discusses the way radiometric dating and stratigraphic principles are used to establish the conventional geological time scale.In no way are they meant to imply there are no exceptions.For example, the principle of superposition is based, fundamentally, on gravity.
Search for limitations of radiometric dating:
I thought it would be useful to present an example where the geology is simple, and unsurprisingly, the method does work well, to show the quality of data that would have to be invalidated before a major revision of the geologic time scale could be accepted by conventional scientists.