Phenocryst and glass microprobe analyses for the 29.5 Ma Wah Wah Springs Formation, Nevada and Utah, by Robert L. Nusbaum, 1988.

Microprobe data for the Wah Wah Springs Formation; references.

Additional information available in OF86-11 and OF86-15.

Open-File Report 88-5, 17 pages, 11x8.5", 1 b/w drawing, 7 tables, $5.00