Robert L. Smith, 1920–2016
Robert L. Smith, renowned volcanologist and distinguished scientist with the U.S. Geological Survey (USGS), was a world authority on ash-flow tuffs, silicic volcanism, and caldera structures. Bob died peacefully in Sacramento, California, June 17, 2016, a few days short of his ninety-sixth birthday. His publications on ash flows and their deposits brought about an international revolution in understanding explosive silicic volcanism and, in his fifty-year career, he profoundly influenced USGS programs and countless scientists. Smith was the inaugural recipient of the IAVCEI Thorarinsson Medal (1987). Bob's career and accomplishments are detailed in a Geological Society of America Memorial (ftp://rock.geosociety.org/pub
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