  We study nuclear dependences of azimuthal asymmetries in the Drell-Yan lepton
pair production in nucleon-nucleus collisions with polarized nucleons.We use
the "maximal two-gluon correlation approximation", so that we can relate the
transverse momentum dependent quark distribution in a nucleus to that in a
nucleon by a convolution with a Gaussian broadening.We use the Gaussian ansatz
for the transverse momentum dependence of such quark distribution functions,and
obtain the numerical results for the nuclear dependences.These results show
that the averaged azimuthal asymmetries are suppressed.

High Energy Physics - Phenomenology;Nuclear Theory