title: Obituary: George W. Wetherill (1925-2006).
authors.affiliation: Alan P. Boss is in the Department of Terrestrial Magnetism, Carnegie Institution of Washington, 5421 Broad Branch Road NW, Washington DC 20015-1305, USA.boss@dtm.ciw.edu.
authors.forename: Alan P
authors.initials: AP
authors.lastname: Boss