EAPS congratulates Robert R. Shrock Professor of Earth and Planetary Sciences Timothy Grove who was recognized with the 2018 Harry H. Hess Medal by the American Geophysical Union (AGU), awarded annually for “outstanding achievements in research on the constitution and evolution of the Earth and other planets.”
Established in 1984, the medal is named in honor of Harry H. Hess, who made many seminal contributions to geology, mineralogy, and geophysics—including constraining the mechanisms of seafloor spreading and the formation of flat-topped seamounts (guyots), and originating scientific ocean drilling by the Mohole Project. Hess served multiple terms as an AGU section president for Geodesy (1950–53) and Tectonophysics (1956–59). Grove is only the second member of the MIT faculty to earn the Hess Medal; Maria Zuber, E. A. Griswold Professor of Geophysics and Vice President for Research at MIT, was awarded the prize in 2012.
A past president of AGU himself (2008-10), Grove is interested in the processes that have led to the chemical evolution of the Earth and other planets, and meteorite parent bodies. His approach to understanding planetary differentiation is to combine field, petrologic, and geochemical studies of igneous rocks with high pressure, high temperature experimental petrology. On Earth, his research focuses on mantle melting and subsequent crustal-level magma differentiation at both mid-ocean ridges and subduction zones. For mid-ocean ridges, he looks at the influence of mantle convection and lithospheric cooling on melt generation and modification, while in subduction zone environments he seeks to understand the role of water on melting and differentiation processes. On the Moon, his work focuses on understanding the chemical differentiation of the early lunar magma ocean and the subsequent remelting of its cumulates to create lunar mare basalts.
Grove has been a member of the faculty since 1979 and served as EAPS associate department head from 2010-18.
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