Open File 2000-02 documents 239 sedimentary hosted exhalite occurrences recorded in MINFILE. These include examples from four major deposit model types - clastic sediment-hosted exhalative Zn-Pb-Ag, sedimentary-hosted stratiform barite, carbonate-hosted exhalative Zn-Pb and metasedimentary-hosted Pb-Zn-Ag. They occur in cratonic or pericratonic terranes of the Omenica or Cratonal North American belts.

The 65 occurrences of the clastic sedimentary-hosted deposit type form two main clumps located in southeastern B.C., including the world class Sullivan Mine, and northeastern B.C. The southern group of occurrences are found in rocks of the Middle Proterozoic Purcell Supergroup, while the northern group are hosted in the Devono-Mississippian Earn Group. The latter is also the host to most of the 47occurrences of sedimentary hosted stratiform barite deposit type. Carbonate-hosted (Irish-type) deposits (62 occurrences) are concentrated mostly in Cambrian aged limestones of the Kootenay terrane.

The metasedimentary-hosted deposits (65 occurrences) include Broken Hill or Shushwap type deposits as well as possible metamorphic equivalents of the clastic and carbonate hosted types. They are hosted in Upper Proterozoic to Cambrian aged rocks of the Eagle Bay Assemblage and Monashee Complex.

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