Does radiometric dating not work


30-Sep-2017 15:17

It is not easily explained, in the general case, in any other way.

The data points would be expected to start out on a line if certain initial conditions were met.

Whether there's a data point on the Y-axis or not, the Y-intercept of the line doesn't change as the slope of the isochron line does (as shown in Figure 5).

Therefore, the Y-intercept of the isochron line gives the initial global ratio of could be subtracted out of each sample, and it would then be possible to derive a simple age (by the equation introduced in the first section of this document) for each sample.

Since the data points have the same Y-value and a range of X-values, they initially fall on a horizontal line: half-lives will include zero within its range of uncertainty.

(The range of uncertainty varies, and may be as much as an order of magnitude different from the approximate value above.

However, the methods must be used with care -- and one should be cautious about investing much confidence in the resulting age...

especially in absence of cross-checks by different methods, or if presented without sufficient information to judge the context in which it was obtained.

The equation is the one which describes radioactive decay: If one of these assumptions has been violated, the simple computation above yields an incorrect age.Isochron methods avoid the problems which can potentially result from both of the above assumptions.Isochron dating requires a fourth measurement to be taken, which is the amount of a different isotope of the same element as the daughter product of radioactive decay.(Rocks which include several different minerals are excellent for this.) Each group of measurements is plotted as a data point on a graph.

does radiometric dating not work-47

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The X-axis of the graph is the ratio of in a closed system over time.Age "uncertainty" When a "simple" dating method is performed, the result is a single number.



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