Peculiarities of Abundances of Selected Elements in Metal-Rich Field RR
  Lyrae Stars
  We use the data of our extended catalog of spectroscopic determinations of
elemental abundances in the atmospheres of Galactic-field RR Lyrae type
variables to show that metal-rich RR Lyraes ($\rm{[Fe/H]} > -1.0$) have
anomalous abundances of some elements. In particular, the relative abundances
of scandium, titanium, and yttrium in metal-rich RR Lyrae type variables are
lower than the corresponding abundances in field stars of similar metallicity
beyond the errors. We discuss the errors of the determination of the abundances
of the above elements and point out the fact that no europium, zirconium, and
lanthanum abundance determinations are available for metal-rich RR Lyrae type
variables. We also analyze various possible causes of the observed
peculiarities of the chemical composition of metal-rich RR Lyrae type
variables.
