Chemistry of the subalkalic silicic obsidians /
Macdonald, Ray.
Smith, Robert L.
Thomas, John E.(Thomas Edmond),1932-
Geological Survey (U.S.)
[Reston, Va.?] : U.S. Department of the Interior, U.S. Geological Survey ; Denver, CO : For sale by Books and Open-File Sales,
1992.
Shipping list no.: 93-0033-P.
Includes bibliographical references.
Obsidian