| George Marshall Kay | |
|---|---|
| Born | November 10, 1904 Paisley, Ontario |
| Died | September 3, 1975 Englewood, New Jersey |
| Residence | Leonia, New Jersey |
| Nationality | American |
| Fields | Geology |
| Institutions | Columbia University |
| Known for | Stratigraphy |
| Notable awards | Penrose Medal |
Marshall Kay (1904–1975) was a geologist and professor at Columbia University. He is best known for his studies of the Ordovician of New York, Newfoundland, and Nevada, but his studies were global and he published widely on the stratigraphy of the middle and upper Ordovician. Kay's careful fieldwork provided much geological evidence for the theory of continental drift. He was awarded the Penrose Medal in 1971.