Data of geochemistry. Chapter N, Chemistry of igneous rocks. Part 1, The chemistry of the peralkaline oversaturated obsidians /
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| Format: | Government Document Book |
| Language: | English |
| Published: |
Washington :
U.S. G.P.O.,
1973.
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| Edition: | 6th ed. |
| Series: | Geological Survey professional paper ;
440-N-1. |
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| Item Description: | "2401-00253"--Title page verso. "Tabulation and discussion of chemical analyses of peralkaline, quartz-normative obsidians, the nature of chemical variation within these rocks, and a revised nomenclature." |
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| Physical Description: | v, 37 pages : illustrations ; 29 cm. |
| Bibliography: | Includes bibliographical references (pages 19-20). |