Paul F. Hoffman
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Paul Felix Hoffman, FRSC, OC (born March 21, 1941) is a Canadian geologist and Sturgis Hooper Professor Emeritus of Geology at Harvard University. He specializes in the Precambrian era and is widely known for the theory of the Snowball Earth about phenomena that occurred in the Neoproterozoic era, co-published with Daniel P. Schrag.
Born in Toronto, Ontario, he received the B.Sc. from McMaster University in 1964, the M.Sc. from Johns Hopkins University in 1965, and was awarded a Ph.D. by Johns Hopkins University in 1970, where his doctoral advisor was Francis J. Pettijohn.
He is also the brother of Abby Hoffman, an Olympic champion in track and field. Both have received the Order of Canada for accomplishments in different fields.
- In 1974, he was awarded the Geological Association of Canada's Past-Presidents' Medal
- In 1991 he was awarded the Canadian Society of Petroleum Geologists's R. J. W. Douglas Medal
- In 1992 he was awarded the Geological Association of Canada's highest honour, the Logan Medal
- In 1997 he was awarded the Royal Society of Canada's Willet G. Miller Medal
- In 2009 he received the Wollaston Medal of the Geological Society
- In 2011 he was awarded the Geological Society of America's Penrose Medal
- In 2012 he was made an Officer of the Order of Canada
- In 2016 he was awarded the Gold Medal of the Royal Canadian Geographical Society 
- "EPS in the news". Department of Earth and Planetary Sciences. Harvard University. January 2009. Archived from the original on December 19, 2008. Retrieved 2009-02-25.
- "Appointments to the Order of Canada". Governor General of Canada. June 29, 2012. Retrieved 2012-07-25.
- "Gold Medal- Award Recipients since its inception in 1972". Royal Canadian Geographical Society. Retrieved 1 December 2016.