Mineral resources of the Comanche-Big South, Neota-Flat Top, and Never Summer Wilderness Study Areas, north-central Colorado

Fluorine-rich mafic lower crust in the southern Rocky Mountains: The role of pre-enrichment in generating fluorine-rich silicic magmas and porphyry Mo deposits

“…High-precision U/Pb zircon geochronology indicates that the Mount Cumulus pluton was assembled rapidly, over 10's to 100's of k.y (Rosera et al 2021). The Never Summer batholith is not significantly mineralized, but an area west of Mount Cumulus was prospected for porphyry Mo mineralization (Pearson et al 1981). Molybdenite was also reported to occur in miarolitic cavities in the Mount Cumulus pluton, and rock chip surveys identified anomalously high abundances of Mo and Ag (Pearson et al 1981).…”