The Vienna mineralized area in south-central Idaho was an important silver-lead-producing
district in the late 1800s and has intermittently produced lead, silver,
zinc, copper, and gold since that time. Two distinct vein types are present
in a northwest- and east-trending conjugate shear-zone system. K-Ar dating
of shear-zone sericite provides indications that mineralization in the
Vienna mineralized area probably took place in the Late Cretaceous.
Version 1.0
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Posted April 2005 |
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