De Voto, Richard H.Heiple, Paul W.2023-10-032023-10-031980https://hdl.handle.net/11124/178089Includes bibliographical references.masters thesesengCopyright of the original work is retained by the author.Trace elementsShale -- Colorado -- Park CountyShale -- Colorado -- Lake CountyShale -- Colorado -- Eagle CountyGeology, Stratigraphic -- PennsylvanianPrimary trace element distribution of the Belden shale (Pennsylvanian) from Trout Creek Pass to Eagle, Colorado: a possible source for ore depositsText