Dating geology

27-Oct-2017 20:16

The radioisotope methods—long touted as irrefutably dating the earth as countless millions of years old—have repeatedly failed to give reliable and meaningful absolute ages for Grand Canyon rocks.In the walls of the Grand Canyon, we can see that the whole horizontal sedimentary strata sequence was folded without fracturing.Radiocarbon dating relies on the regular radioactive decay of carbon-14 in organic matter.Analytical techniques are now very advanced, and can give very small uncertainties on a radiocarbon age.If we use the analogue of a clock we can investigate this further.Your wrist watch may measure time with a precision of one second.

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Geological data frequently has difficulties in dating things, even if the analytical techniques can give very precise answers.

But this isn’t the full story: like cosmogenic nuclide dating, there are plenty of sources of inaccuracies before the sample even gets to the laboratory.

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