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SBU Prof. Don Weidner selected to receive Inge Lehmann Medal for 2011

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SBU Prof. Don Weidner selected to receive Inge Lehmann Medal for 2011

AGU Award Recognizes Professor’s Contributions to Understanding Earth’s Evolution

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Donald J. Weidner, Ph.D.

, N.Y., December 2, 2011—The American Geophysical Union has announced that the 2011 Inge Lehmann Medal will be awarded to Stony Brook University’s Donald J. Weidner, Ph.D., a distinguished professor in the Department of Geosciences. Awarded once every two years, the medal recognizes “outstanding contributions to the understanding of the structure, composition, and dynamics of the Earth’s mantle and core.” The award will be presented to Dr. Weidner next week at the annual AGU meeting in San Francisco. 


“This is an exceptional achievement, and we are all proud and thrilled for Don,” said Richard J. Reeder, Chair and Professor, Department of Geosciences and Director of the Center for Environmental Molecular Science at Stony Brook University. “Don has pioneered experimental studies of earth materials at extreme conditions and has served the geophysics and mineral physics communities through his leadership in developing synchrotron facilities at National Synchrotron Light Source (NSLS) at Brookhaven National Laboratories.” 


“I am humbled and honored by this prestigious award,” said Dr. Weidner. “But at the end of the day, it recognizes not just me, but all the talented and dedicated people I work with at SBU. This honor truly belongs to them.” 


Dr. Weidner’s research focuses on the materials that make up the Earth, in order to understand the state and evolution of the planet. His team studies the properties at the high pressures and temperatures that are presumed to exist deep in the Earth, using tools such as synchrotrons to gather information about the minerals in the high pressure devices. “Ultimately, we hope to gain information about plate tectonics, earthquakes, and volcanoes—while understanding the chemical make-up of the Earth,” notes Dr. Weidner. 


Dr. Weidner joined Stony Brook University as an assistant professor in 1972, after receiving his Ph.D. from MIT. He earned his BA from Harvard University. 


The Lehmann Medal was established in 1995 in honor of Inge Lehmann, a Danish seismologist who made many contributions to the understanding of the Earth’s deep interior, including the discovery of the Earth’s inner core in 1936. Prior to her work, the core was assumed to be homogeneous. Lehmann showed that certain seismic waves must be associated with reflections and refractions at a discontinuity within the core and that an inner core must exist beneath the discontinuity. The inner core is now recognized to play an important role in many aspects of the Earth’s deepest interior. Lehmann went on to become an authority on the structure of the Earth’s upper mantle. 


About AGU 

The American Geophysical Union (AGU), which was established in 1919 by the National Research Council and for more than 50 years operated as an unincorporated affiliate of the National Academy of Sciences, is now a nonprofit corporation chartered under the laws of the District of Columbia. The Union is dedicated to the furtherance of the geophysical sciences through the individual efforts of its members and in cooperation with other national and international scientific organizations. 


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