The Collaborative International Dictionary of English v.0.48:

Saliferous \Sa*lif"er*ous\, a. [L. sal salt + -ferous.]
   Producing, or impregnated with, salt.
   [1913 Webster]

   Saliferous rocks (Geol.), the New Red Sandstone system of
      some geologists; -- so called because, in Europe, this
      formation contains beds of salt. The saliferous beds of
      New York State belong largely to the Salina period of the
      Upper Silurian. See the Chart of Geology.
      [1913 Webster]

WordNet (r) 3.0 (2006):

saliferous
    adj 1: containing or yielding salt; "saliferous formations";
           "salt domes"