Metamorphic processes invalidate radiometric dating methods Sexy free 3g

This will be discussed in more detail in the section on Gill's paper below.

The "generic" method described by Gonick is easier to understand, but it does not handle such necessities as: (1) varying levels of uncertainty in the X- versus Y-measurements of the data; (2) computing an uncertainty in slope and Y-intercept from the data; and (3) testing whether the "fit" of the data to the line is good enough to imply that the isochron yields a valid age.

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Consider some molten rock in which isotopes and elements are distributed in a reasonably homogeneous manner.

Its composition would be represented as a single point on the isochron plot: Note that the above is somewhat simplified.

It depends on the accuracy of the measurements and the fit of the data to the line in each individual case.) For example, with Rb/Sr isochron dating, any age less than a few tens of millions of years is usually indistinguishable from zero.

That encompasses the entire young-Earth timescale thousands of times over." in the decay equation.


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