Our understanding of the shape and pattern of the history of life depends on the accuracy of fossils and dating methods some critics particularly religious fundamentalists argue that neither fossils nor dating can be trusted and that their interpretations are better.
Before more precise absolute dating tools were possible researchers used a variety of comparative approaches called relative dating these methods some of which are still used today provide only an approximate spot within a previously established sequence think of it as ordering rather than dating.
radiocarbon dating also referred to as carbon dating or carbon14 dating is a method for determining the age of an object containing organic material by using the properties of radiocarbon a radioactive isotope of carbon the method was developed in the late 1940s by willard libby who received the nobel prize in chemistry for his work in 1960 it is based on the fact that radiocarbon 14.
radiometric dating how radiometric dating works in general why methods in general are inaccurate why kar dating is inaccurate the branching ratio problem.
the age of the earth strengths and weaknesses of radiometric and other dating methods see also the discussions on dating a young earth and biblical earth dating.
The slope of the line is the ratio of enriched d to remaining pit can be used in place of d now p now in the decay equationmiscellaneous notes age uncertainty when a simple dating method is performed the result is a single number.
The real heart of the ageoftheearth debate if debate is the right word is always radiometric dating there are lots of ways to guesstimate ages and geologists knew the earth was old a long time ago and i might add that they were mostly christian creationist geologists but they didnt know how oldradiometric dating actually allows the measurement of absolute ages and so it is.
frequently asked questions how does thermoluminescence dating work what is the accuracy of tl dating what materials can be dated by tl.
dating rubidiumstrontium method the radioactive decay of rubidium87 87rb to strontium87 87sr was the first widely used dating system that utilized the isochron method rubidium is a relatively abundant trace element in earths crust and can be found in many common rockforming minerals in which it substitutes for the major element potassium.