1. The origin of hydrogen, carbon, sulfur, nitrogen and rare gases in volcanic exhalations: evidence from isotope geochemistry;Allard,1983
2. Apllication of the silica geothermometer in low-temperature hydrothermal areas in Iceland;Arnórsson;Am J Sci,1975
3. Secondary mineralogy of core from geothermal drill hole CTGH-1, Cascade Range, Oregon;Bargar,1988
4. Hydrothermal alteration in the SUNEDCO 58-28 geothermal drill hole near Breitenbush Hot Springs;Bargar;Oregon: Oregon Geology,1994
5. Bargar, K.E., and Oscarson, R.L., 1997, Zeolites and selected other hydrothermal minerals in the Cascade Mountains of northern Oregon, U.S. Geological Survey Open File Report 97-100, p. 64.