Amino acid racemisation dating

In the sciences, it is important to distinguish between precision and accuracy.

If we use the analogue of a clock we can investigate this further.

This is a problem we regularly encounter in chronostratigraphy.

Analytical techniques are very advanced and precise, but they may be inaccurate.

I have tried here to answer some of the frequently asked questions that I receive from students via email, as well as providing some basic information about scientific dating methods.

What other sources of inaccuracies are there in Quaternary chronostratigraphy?

Measuring the environmental dose rate for an OSL sample from Glen Tulla, Scotland.

The gamma spectrometer has been put into the sample hole (see the lead going from the gamma spectrometer crystal to the control box).

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

In the figure below, the precision is the laboratory probability density curve produced when a material is dated.

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