Chemistry of igneous rocks.
By: by Ray Macdonald and D. K. Bailey.
Contributors: Bailey, D. K. 1931-
Series: Geological Survey professional paper -- 440-N-1; Data of geochemistry
Publisher: U.S. Govt. Print. Off.
Published: 1973
Place of publication: Washington
Language: eng
Number of pages: 37
Subjects: Obsidian -- Composition.; Trace elements.; Geochemistry.; Rocks, Igneous.
Other titles: Chemistry of the peralkaline oversaturated obsidians.
Description: Tabulation and discussion of chemical analyses of peralkaline, quartz-normative obsidians, the nature of chemical variation within these rocks, and a revised nomenclature.
Notes: At head of title: Data of geochemistry, sixth edition.

Includes bibliographical references (p. 19-20).