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This technique is not restricted to bones; it can also be used on cloth, wood and plant fibers.Carbon-14 dating has been used successfully on the Dead Sea Scrolls, Minoan ruins and tombs of the pharaohs among other things. The half-life of carbon-14 is approximately 5,730 years. dinosaurs the evolution alleges lived millions of years ago.Geochronologists do not claim that radiometric dating is foolproof (no scientific method is), but it does work reliably for most samples.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.Carbon-14 cannot be used to date biological artifacts of organisms that did not get their carbon dioxide from the air.
It also allows us to put events into chronological order and by those means to deduct the driving forces behind the continual changes of the Earth.
Geologic time spans are considerably more difficult to comprehend than historical time spans because they are so incredibly long.
For a long time there was considerable debate on the length of geologic time spans and the age of the earth.
These are often characterised as the norm, rather than the exception.
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.Dating refers to several methods we use to measure how old a rock is.