RI-38 Tourmaline in Early Proterozoic Metasedimentary Rocks Near Philbrook, Northeastern Todd County, Central Minnesota

Boerboom, Terrence J.2010-04-202010-04-201989Boerboom, T.J., 1989, Tourmaline in Early Proterozoic Metasedimentary Rocks Near Philbrook, Northeastern Todd County, Central Minnesota, Minnesota: Minnesota Geological Survey Report of Investigations 38, 25 p.0076-9177https://hdl.handle.net/11299/60771en-USRI-38 Tourmaline in Early Proterozoic Metasedimentary Rocks Near Philbrook, Northeastern Todd County, Central MinnesotaReport