Metalliferous black shales and related ore deposits : proceedings, 1989 United States Working Group meeting, International Geological Correlation Program Project 254 /
International Geological Correlation Program.Project 254.United States Working Group.
Grauch, Richard I.
Huyck, Holly Lo.
Geological Survey (U.S.)
[Washington] : US Government Printing Office,
1990.
Includes bibliographical references and index.
Shale
Ore deposits