Constraints on the timing of Co-Cu ± Au mineralization in the Blackbird district, Idaho, using SHRIMP U-Pb ages of monazite and xenotime plus zircon ages of related Mesoproterozoic orthogneisses and metasedimentary rocks

Aleinikoff, John N.; Slack, John F.; Lund, Karen; Evans, Karl; Fanning, Christopher; Mazdab, Frank K.; Wooden, Joseph L.; Pillers, Renee M.

Constraints on the timing of Co-Cu ± Au mineralization in the Blackbird district, Idaho, using SHRIMP U-Pb ages of monazite and xenotime plus zircon ages of related Mesoproterozoic orthogneisses and metasedimentary rocks

Date

2012

Authors

Aleinikoff, John N.

Slack, John F.

Lund, Karen

Evans, Karl

Fanning, Christopher

Mazdab, Frank K.

Wooden, Joseph L.

Pillers, Renee M.

Publisher

Economic Geology Publishing Company

Abstract

The Blackbird district, east-central Idaho, contains the largest known Co reserves in the United States. The origin of strata-hosted Co-Cu ± Au mineralization at Blackbird has been a matter of controversy for decades. In order to differentiate among poss