1. of or relating to geochronology; concerned with determining the age of rocks and geological events using scientific methods
Usage: technical; geology

Examples

• The team used geochronologic techniques to date the ancient volcanic layers.
• Geochronologic analysis revealed that the fossil was approximately 2.5 million years old.
• Radiometric dating is a common geochronologic method employed in paleontology.
• The geochronologic evidence supported the theory of continental drift.
• Scientists applied geochronologic principles to establish the timeline of Earth's geological history.