Stratigraphy of Middle Ordovician rocks in the zinc-lead district of Wisconsin, Illinois, and Iowa
By: by Allen F. Agnew ... [et al.].
Contributors: Geological Survey (U.S.)
Series: Geological Survey professional paper -- 274-K; Shorter contributions to general geology -- 1955-57
Publisher: U.S. G.P.O.
Published: 1956
Place of publication: Washington, D.C
Language: eng
Number of pages: 312
Subjects: Stratigraphic Geology; Geology
Notes: Includes index.

Bibliography: p. 302-305.
Table of contents: title: Abstract --; title: Introduction --; title: Purpose of the investigation --; title: Location and geographic setting --; title: Field work --; title: Acknowledgments --; title: Regional geology and stratigraphic relations --; title: Structure --; title: Regional stratigraphic summary --; title: Stratigraphic principles --; title: Stratigraphic problems --; title: Platteville-Decorah boundary --; title: Beloit dolomite --; title: Unnamed limestone member, Decorah formation --; title: Subdivsions of Galena dolomite --; title: Origin and application of the names --; title: Madison sandstone --; title: Pecatonica dolomite member --; title: McGregor limestone member --; title: Quimbys Mill member --; title: Stratigraphy of the mining district --; title: Pre-Platteville rocks --; title: Pre-Cambrian rocks --; title: Cambrian rocks --; title: Ordovician rocks --; title: Prairie du Chien group --; title: St. Peter sandstone --; title: Platteville formation --; title: General features --; title: Glenwood shale member --; title: Lithologic description and stratigraphic relations --; title: Distribution --; title: Fauna and correlation --; title: Economic products --; title: Pecatonica dolomite member --; title: Lithologic description and stratigraphic relations --; title: Distribution --; title: Fauna and correlation --; title: Economic products --; title: Quimbys Mill member --; title: Lithologic description and stratigraphic relations --; title: Distribution --; title: Fauna and correlation --; title: Economic products --; title: Distribution of facies of the Platteville and conditions of deposition --; title: Decorah formation --; title: General features --; title: Spechts Ferry shale member --; title: Lithologic description and stratigraphic relations --; title: Distribution --; title: Fauna and correlation --; title: Economic products --; title: Guttenberg limestone member --; title: Lithologic description and stratigraphic relations --; title: Distribution --; title: Fauna and correlation --; title: Economic products --; title: Ion dolomite member --; title: Lithologic description and stratigraphic relations --; title: Distribution --; title: Fauna and correlation --; title: Economic products --; title: Distribution and facies of the Decorah and conditions of deposition --; title: Galena dolomite --; title: General features --; title: Cherty unit --; title: Noncherty unit --; title: Distribution --; title: Distribution of facies of the Galena and conditions of deposition --; title: Fauna and correlation --; title: Economic products --; title: Post-Galena rocks --; title: Ordovician rocks -- Maquoketa shale --; title: Silurian rocks --; title: Post-Silurian deposits --; title: Literature cited --; title: Stratigraphic sections --; title: Index.