Research Interests

• Cosmochemistry
• Laser ablation microanalysis
• Geochemistry of the platinum group elements
• Isotope systematics

Selected Publications

• Righter K., Campbell A. J. and Humayun M. , 2004, Diffusion of trace elements in FeNi metal: applications to zoned metal grains in chondrites, Geochim. Cosmochim. Acta , submitted 8/04.


• Campbell A. J., Humayun M. and Weisberg M. K. , 2004, Compositions of unzoned and zoned metal in the CBb chondrites HH237 and QUE 94627, Meteoritics Planet. Sci., (submitted June 2004).


• Humayun M., Qin L., and Norman M. D., 2004, Geochemical evidence for excess iron in the mantle beneath Hawaii, Science, (submitted, 5/28/04; accepted 8/17/04).


• Brandon A. D., Humayun M., Puchtel I. S. and Zolensky M. E., 2004, Re-Os isotopic systematics and platinum group element composition of the Tagish Lake carbonaceous chondrite, Geochim. Cosmochim. Acta , (accepted August 2004).