| Another geochronologist on the team has dated two volcanic layers above the unconformity, and they consistently date to just over 2.8 billion years. |
| Recently, he published the results of a comparison between radiocarbon dating and a second technique, known as optical dating, carried out by a geochronologist. |
| The skill of a geochronologist is demonstrated by the ability to attain the knowledge required and the precision necessary with the least number of analyses. |
| In turn, the geochronologist relies on the geologist for relative ages. |
