- Source: David Kohlstedt
David L. Kohlstedt (born 1943) is an American geologist and geophysicist, known for his experimental studies of the chemical and physical properties of minerals and rocks at high-temperatures and high-pressures. He was awarded the Murchison Medal in 2009 and the Vetlesen Prize in 2023.
Early life
Kohlstedt was born in 1943, the son of a Lutheran minister and an elementary school teacher. He grew up in South Dakota, with an older sister, Pat.
Education
Kohlstedt received a bachelor's degree in physics and mathematics from Valparaiso University, Indiana in 1965. He was awarded a Ph.D. in solid-state physics from the University of Illinois at Urbana-Champaign in 1970, for a thesis on the diffusion of carbon in titanium carbide (TiC).
Career
He spent a year at the Cavendish Laboratories at the University of Cambridge from 1970 to 1971, and then moved to MIT where he conducted post-doctoral research with Chris Goetze and Bill Brace from 1971 to 1975. While at MIT Kohlstedt first began working on the deformation of silicate minerals and rocks from the Earth's mantle. He joined the Department of Materials Science and Engineering at Cornell University in 1975, and in 1989 moved to the School of Earth and Environmental Sciences, at University of Minnesota, where he worked for the remainder of his career.
He was awarded the Harry Hess medal of the American Geophysical Union in 2003 "for his fundamental contributions to understanding the Earth’s upper mantle rheology" and in 2009 was awarded the Murchison Medal of the Geological Society of London for his studies of the mechanical properties of rocks on Earth and other planets, and the way that they influence geodynamic processes.
Personal life
Kohlstedt is married to historian of science Sally Gregory Kohlstedt. They met at Valparaiso University.
Selected works
Kohlstedt, D.L.; Goetze, C. (1974). "Low-stress high-temperature creep in olivine single crystals". Journal of Geophysical Research. 79: 2045–2051. doi:10.1029/JB079i014p02045.
Brace, W.F.; Kohlstedt, D.L. (1980). "Limits on lithospheric stress imposed by laboratory experiments". Journal of Geophysical Research: Solid Earth. 85: 6248–6252. doi:10.1029/JB085iB11p06248.
Hirth, G.; Kohlstedt, David L. (1996). "Water in the oceanic upper mantle: implications for rheology, melt extraction and the evolution of the lithosphere". Earth and Planetary Science Letters. 144: 93–108. doi:10.1016/0012-821X(96)00154-9.
Prizes and fellowships
1982 Guggenheim Fellowship
2000 Member, American Academy of Arts and Sciences
2003 Harry Hess medal
2005 Louis Néel Medal, European Geosciences Union
2009 Fellow, National Academy of Sciences
2009 Murchison Medal
2023 Vetlesen Prize