The Detailed Chemical Abundance Patterns of M31 Globular Clusters
  We present detailed chemical abundances for $>$20 elements in $\sim$30
globular clusters in M31. These results have been obtained using high
resolution ($\lambda/\Delta\lambda\sim$24,000) spectra of their integrated
light and analyzed using our original method. The globular clusters have
galactocentric radii between 2.5 kpc and 117 kpc, and therefore provide
abundance patterns for different phases of galaxy formation recorded in the
inner and outer halo of M31. We find that the clusters in our survey have a
range in metallicity of $-2.2<$[Fe/H]$<-0.11$. The inner halo clusters cover
this full range, while the outer halo globular clusters at R$>$20 kpc have a
small range in abundance of [Fe/H]$=-1.6 \pm 0.10$. We also measure abundances
of alpha, r- and s-process elements. These results constitute the first
abundance pattern constraints for old populations in M31 that are comparable to
those known for the Milky Way halo.
