Arthur L. Day Medal
official
- Organizer
- Geological Society of America
- Why it counts
- Awarded annually since 1948 by the Geological Society of America (GSA), established by Arthur L. Day, for outstanding distinction in contributing to geologic knowledge through the application of physics and chemistry to geologic problems
- Held
- annual, recipient announced by GSA in spring/summer and presented at the GSA annual meeting awards ceremony in September/October; year = award year
Reigning winners
Day Medal recipient · 2025