Argon 39 dating

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The conventional K-Ar dating method depends on the assumption that the rocks contained no argon at the time of formation and that all the subsequent radiogenic argon (i.e., Ar that has accumulated.The minerals that are best suited for dating include biotite, muscovite, and plutonic/high grade metamorphic hornblende, and volcanic feldspar; whole rock samples from volcanic flows and shallow instrusives can also be dated if they are unaltered (Faure, 1986).Argon-39 has been used for a number of applications, primarily ice coring.It has also been used for ground water dating (Oeschger et al., 1974).

It makes no sense at all if man appeared at the end of billions of years.For a discussion of K-Ar dating see Dalrymple and Lanphere (1969) and Faure (1986).Under some circumstances the requirements for successful K-Ar dating may be violated.Source of text: This review was assembled by Dan Snyder and Carol Kendall, primarily drawing upon Faure (1986) and Fabryka-Martin (1988).Please contact Carol Kendall ([email protected]) for questions and comments regarding this page.

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