The Francis J. Pettijohn Medal for Sedimentology is awarded in recognition of "Excellence in Sedimentology."
Nominees for the medal will be persons who have a significant record of outstanding contributions in sedimentary geology, including all aspects of sedimentology and stratigraphy. Recognition is not to be limited to members of the Society or other professional organizations, nor to citizens of any one country. Recipients of the Pettijohn Medal are eligible as later nominees for the Twenhofel Medal.
All nominees must be 20+ years since PhD (or equivalent degree).
Link to Nomination Form
Any additional nomination materials should be sent to