SHRIMP U-Pb ages of Xenotime and monazite from the Spar Lake red bed-associated Cu-Ag deposit, western Montana: Implications for ore genesis
Xenotime occurs as epitaxial overgrowths on detrital zircons in the Mesoproterozoic Revett Formation (Belt Supergroup) at the Spar Lake red bed-associated Cu-Ag deposit, western Montana. The deposit formed during diagenesis of Revett strata, where oxidizing metal-bearing hydrothermal fluids encountered a reducing zone. Samples for geochronology were collected from several mineral zones. Xenotime overgrowths (1-30 μm wide) were found in polished thin sections from five ore and near-ore zones...[Show more]
|Collections||ANU Research Publications|
|Source:||Economic Geology; Bulletin of the Society of Economic Geologists|
|01_Aleinikoff_SHRIMP_U-Pb_ages_of_Xenotime_2012.pdf||1.13 MB||Adobe PDF||Request a copy|
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