http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Chemistry of the iron-rich sedimentary rocks
"Chemical composition and occurrence of iron-bearing minerals of sedimentary rocks, and composition, distribution, and geochemistry of ironstones and iron-formations" -- title page.
Includes bibliographical references (pages 51-60).
Geological Survey professional paper ; 440-W