Ar ar dating method


15-May-2020 15:16

Variations in this data may point to errors anywhere in the process, which is why all the steps of preparation are recorded in detail.K-Ar analyses cost several hundred dollars per sample and take a week or two.

Ar-Ar analyses cost around 00 per sample and take several weeks.

The site also must be geologically meaningful, clearly related to fossil-bearing rocks or other features that need a good date to join the big story.