Editore: United States Government Printing Office, Washington, 1975
Condizione: very good. Sixth Edition. from the title page, "Tabulation and discussion of chemical analyses of peralkaline, quartz-normative obsidians, the nature of chemical variation within these rocks, and a revised nomenclature." softcover, 11.25" x 9", 37 pages.
Editore: US Government Printing Office, 1973
Da: Bank of Books, Ventura, CA, U.S.A.
Staple Bound. Condizione: Good. Part 1 The Chemistry of the Peralkaline Oversaturated Obsidians. Geological Survey Professional Paper 440-N-1. Technical Editor: Michael Fleischer Book shows common (average) signs of wear and use. Binding is still tight. Covers are intact but may be repaired. We have 75,000 books to choose from -- Ship within 24 hours -- Satisfaction Guaranteed!