Abstract
We have carried out heating experiments of Tagish Lake and Murchison carbonaceous chondrites at temperatures of 400, 600, and 900C for 50 hours in vacuum and at IW buffer. Reflectance spectra of the Mars moons are relatively similar to those of Tagish Lake and Murchison samples that were heated at 400 or 600C in visible and near infrared range, but the experimental products fail to reproduce 0.65 micron absorption observed in Phobos and Deimos spectra.