http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Map showing distribution of alkaline igneous rocks and associated carbonatites and peridotites in the northern midcontinent, U.S.A
Alkaline igneous rocks and associated carbonatites and peridotites in the northern midcontinent, U.S.A
1 map ; 112 x 107 cm., on sheet 142 x 109 cm., folded in envelope 30 x 24 cm. + text (15 pages ; 28 cm.)
Department of the Interior, U.S. Geological Survey ; compiled by F. Allan Hills [and others] ; prepared in cooperation with the Geological Survey of Arkansas [and others].
Includes index map and 2 ancillary maps.
Includes bibliographical references in pamphlet (pages 1-3).