  Scaling laws for the transport and heating of trace heavy ions in
low-frequency, magnetized plasma turbulence are derived and compared with
direct numerical simulations. The predicted dependences of turbulent fluxes and
heating on ion charge and mass number are found to agree with numerical results
for both stationary and differentially rotating plasmas. Heavy ion momentum
transport is found to increase with mass, and heavy ions are found to be
preferentially heated, implying a mass-dependent ion temperature for very
weakly collisional plasmas and for partially-ionized heavy ions in strongly
rotating plasmas.
