Pictures on radioactive dating

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(2) Geochemistry suggests alternate time interpretations for the parent-daughter ratios.– (a) Radiometric ages for some minerals may not give the time of emplacement of the volcanic or granitic rock because the minerals were formed earlier and the emplaced magma was not hot enough to melt them.– Perhaps it is mainly concordant dates that get published and discordant dates are ignored.Occasionally however, even discordant dates can be found in the literature.Perhaps another reason for the interest in time is that humans are bound by time and can’t move around in it as they can in space.

In many cases these assumptions seem to be valid, and when they are not it is often obvious.Seventh-day Adventists show their great interest in time by having it as part of their name, referring to a recent seven-day creation in the past and a soon-coming advent of Christ in the future.Within this philosophical and theological context of time, the next sections discuss geological time as determined by radiometric dating: (1) how the technique works well and (2) some young-earth creationist responses.RADIOMETRIC DATING WORKS Geology observations about the relation between different rocks can give relative ages, but radiometric dating is the primary method for giving absolute ages. During a certain length of time called a half-life, half of the radioactive parent atoms in a sample decay to stable daughter atoms.The number of both parent and daughter atoms are measured and the higher the daughter/parent ratio, the older the sample.

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