  The Gamma Ray Imaging Spectrometer (GRIS) recently observed the gamma-ray
emission from the Galactic center region. We have detected the 1809 keV
Galactic 26Al emission at a significance level of 6.8-sigma but have found no
evidence for emission at 1173 keV and 1332 keV, expected from the decay chain
of the nucleosynthetic 60Fe. The isotopic abundances and fluxes are derived for
different source distribution models. The resulting abundances are between
2.6+-0.4 and 4.5+-0.7 Solar Masses for 26Al and a 2-sigma upper limit for 60Fe
between 1.7 and 3.1 Solar Masses. The measured 26Al emission flux is
significantly higher than that derived from the CGRO/COMPTEL 1.8 MeV sky map.
This suggests that a fraction of the 26Al emission may come from extended
sources with a low surface brightness that are invisible to COMPTEL. We obtain
a 60Fe to 26Al flux ratio 2-sigma upper limit of 0.14, which is slightly lower
than the 0.16 predicted from current nucleosynthesis models assuming that SNII
are the major contributors to the galactic 26Al. Since the uncertainties in the
predicted fluxes are large (up to a factor of 2), our measurement is still
compatible with the theoretical expectations.
