The Schwartzwalder uranium deposit was formed during Laramide uplift from groundwaters enriched in ore elements leached from the Proterozoic metavolcanic and metasedimentary host-rocks. Contributions from an unseen intrusive or from Phanerozoic sedimentary rocks are inconsistent with the data. Two stages of alteration and three stages of vein mineralization are related to evolution of CO2, in part episodically.-G.J.N.
Additional publication details
The Schwarzwalder uranium deposit, III: alteration, vein mineralization, light stable isotopes, and genesis of the deposit.