Combination of relative dating and absolute dating techniques
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.
Relative geologic age is established, based on such evidence as the order in which layers of sediment are stacked, with the younger layer originally on top.
By using the principles of relative geologic age, the sequence of geologic events -- what happened first, what happened next, what happened last -- can be established.
Geologic assessment of active tectonism depends on two key measures: the age and the amount of deformation of a given stratigraphic unit.
About 26 dating techniques can be applied to dating deposits and deformation of late Cenozoic age (past few million years).When archaeologists talk about dating, they aren’t talking about who they took out to dinner last night.Instead archaeologists are talking about how they find out the age of the artifacts and sites they study.his document discusses the way radiometric dating and stratigraphic principles are used to establish the conventional geological time scale.It is not about the theory behind radiometric dating methods, it is about their , and it therefore assumes the reader has some familiarity with the technique already (refer to "Other Sources" for more information).