GIANT IMPACTS , VOLATILE LOSS , AND THE K / TH RATIOS ON THE MOON , EARTH , AND MERCURY

MERCURY. S. T. Stewart, Z. M. Leinhardt, and M. Humayun. Harvard University, Department of Earth and Planetary Sciences, 20 Oxford Street, Cambridge, MA 02138, U.S.A. (sstewart@eps.harvard.edu). University of Bristol, School of Physics, Tyndall Avenue, Bristol BS8 1TL, U.K. (Zoe.Leinhardt@bristol.ac.uk). Florida State University, Department of Earth, Ocean & Atmospheric Science, 1800 E. Paul Dirac Drive, Tallahassee, FL 32310, U.S.A. (humayun@magnet.fsu.edu).