TY - RPRT TI - An occurrence model for the national assessment of volcanogenic beryllium deposits AU - Nora K. Foley AU - Robert R. Seal AU - Nadine M. Piatak AU - Brianna Hetland PY - 2010 DO - 10.3133/ofr20101195 UR - https://pubs.usgs.gov/publication/ofr20101195 ID - ofr20101195 ER -