http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
geochemical reconnaissance for gold in the sedimentary rocks of the Great Lakes region, Minnesota to New York
Gold, sedimentary rocks, Great Lakes Region
1 online resource (iii, 16 pages). : illustrations.
Title from title screen (viewed September 15, 2014).
"Atomic-absorption analyses indicate an absence of fossil placers and relatively abundant but noneconomic amounts of gold of syngenetic chemical(?) origin in marble and glauconitic sandstone."
Includes bibliographical references (pages 15-16).