Radiometric dating methods accuracy marcille dating

So in order to date most older fossils, scientists look for layers of igneous rock or volcanic ash above and below the fossil.Scientists date igneous rock using elements that are slow to decay, such as uranium and potassium.In most instances, these efforts are flawed because the authors have misunderstood or misrepresented the data they attempt to analyze (for example, Woodmorappe 1979; Morris HM 1985; Morris JD 1994).

Other creationists have focused on instances in which radiometric dating seems to yield incorrect results.Normal pretreatment procedures can remove 30% to 70% of the original material sent.Water, adhering mineral matter, and carbon loss from essential chemical pretreatment are basic factors to consider when determining the amount of material required.Fossils are generally found in sedimentary rock — not igneous rock.Sedimentary rocks can be dated using radioactive carbon, but because carbon decays relatively quickly, this only works for rocks younger than about 50 thousand years.

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