Modal compositions, whole-rock chemical data and normative mineralogy, and minor element data for rocks from alkaline intrusive complexes in northwestern Montana
By: by Theodore J. Armbrustmacher.
Contributors: Geological Survey (U.S.)
Series: Open-file report / United States Department of the Interior, Geological Survey -- 87-0368.; U.S. Geological Survey open-file report -- 87-368.
Publisher: U.S. Dept. of the Interior, Geological Survey; [Books and Open-File Reports Section, distributor]
Published: 1987
Place of publication: [Denver, Colo.?]
Language: eng
Format: Microform
Subjects: Alkalic igneous rocks -- Montana.; Geochemistry -- Montana.
Notes: Includes bibliographical references (p. 4).