TY - RPRT TI - Shrimp U-Pb zircon and opal geochronology, isotope geochemistry, and genesis of the super large Be deposit at Spor Mountain, Utah, USA AU - Nora K. Foley AU - Robert A. Ayuso PY - 2018 UR - https://pubs.usgs.gov/publication/70202804 ID - 70202804 ER -