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Gerlach, T. M., Doukas, M. P., McGee, K. A., and Kessler, R., 1998, Three-year decline of magmatic CO2 emissions from soils of a Mammoth Mountain tree kill: Horseshoe Lake, CA, 1995-1997: Geophysical Research Letters, v. 25, p. 1947-1950. McGee, K. A., and Gerlach, T. M., 1998, Annual cycle of Magmatic CO2 at Mammoth Mountain, California: Implications for soil acidification: Geology, v. 26, p. 463-466. McGee, K. A., and Gerlach, T. M., 1998, Airborne volcanic plume measurements using a FTIR spectrometer, Kilauea Volcano, Hawaii: Geophysical Research Letters, v. 25, p. 615-618. Gerlach, T. M., Delgado, H., McGee, K. A., Doukas, M. P., Venegas, J. J., and Cardenas, L., 1997, Application of the LI-COR CO2 analyzer to volcanic plumes: A case study, Volcan Popocatepetl, Mexico, June 7 and 10, 1995: Journal of Geophysical Research, v. 102, p. 8005-8019. Gerlach, T. M., Westrich, H. R., and Symonds, R. B., 1996, Preeruption vapor in magma of the climactic Mount Pinatubo eruption: Source of the giant stratospheric sulfur dioxide cloud, in Newhall, C. G., and Punongbayan, R. S., eds., Fire and mud: Eruptions and lahars of Mount Pinatubo, Philippines: Philippine Institute of Volcanology and Seismology, Quezon City, and University of Washington Press, Seattle, p. 415-433. Doukas, M. P., and Gerlach, T. M., 1995, Sulfur dioxide scrubbing during the 1992 eruption of Crater Peak, Mount Spurr, Alaska, in Keith, T., ed., The 1992 eruptions of Crater Peak Vent, Mount Spurr volcano, Alaska: U.S. Geological Survey Bulletin B-2139, p. 47-57. Gerlach, T.M., and McGee, K.A., 1994, Total sulfur dioxide emissions and pre-eruption vapor-saturated magma at Mount St. Helens, 1980-88: Geophysical Research Letters, v. 21, p. 2833-2836. Wallace, P.J., and Gerlach, T.M., 1994, Magmatic vapor source for sulfur dioxide released during volcanic eruptions: Evidence from Mount Pinatubo: Science, v. 265, p. 497-499. Gerlach, T.M., Westrich, H.R., Casadevall, T.J., and Finnegin, D.L., 1994, Vapor saturation and accumulation in magmas of the 1989-1990 eruption of Redoubt Volcano, Alaska: Journal of Volcanology and Geothermal Research, v. 62, p. 317-337. Gerlach, T.M., 1993, Oxygen buffering of Kilauea volcanic gases and the oxygen fugacity of Kilauea basalt: Geochimica et Cosmochimica Acta, v. 57, p. 795-814. Westrich, H.R., and Gerlach, T.M., 1992, Magmatic gas source for the stratospheric SO2 cloud from the June 15, 1991 eruption of Mount Pinatubo: Geology, v. 20, p. 867-870. Gerlach, T.M., 1991, Present-day CO2 emissions from volcanoes: Transactions of the American Geophysical Union (EOS), v. 72, p. 249, and 254-255. Gerlach, T.M., and Taylor, B.E., 1990, Carbon isotope constraints on degassing of carbon dioxide from Kilauea Volcano: Geochimica et Cosmochimica Acta, v. 54, p. 2051-2058. Gerlach, T.M., 1989, Degassing of carbon dioxide from basaltic magma at spreading centers: II. Mid-oceanic ridge basalts: Journal of Volcanology and Geothermal Research, v. 39, p. 221-232. Gerlach, T.M., and Casadevall, T.J., 1986, Fumarole emissions at Mount St. Helens Volcano, June 1980 to October 1981: Degassing of a magma-hydrothermal system: Journal of Volcanology and Geothermal Research, v. 28, p. 141-160. Gerlach, T.M., 1986, Exsolution of H2O, CO2, and S during eruptive episodes at Kilauea Volcano, Hawaii: Journal of Geophysical Research, v. 91, p. 12177-12185. Gerlach, T.M., and Graeber, E.J., 1985, Volatile budget of Kilauea Volcano: Nature, v. 313, p. 273-277. Gerlach, T.M., 1982, Interpretation of volcanic gas data from tholeiitic and alkaline mafic lavas: Bulletin of Volcanology, v. 45-3, p. 235-244. Gerlach, T.M., and Nordlie, B.E., 1975, The C-O-H-S gaseous system, Part I: Composition limits and trends in basaltic gases: American Journal of Science, v. 275, p. 353-376. Gerlach, T.M. and Nordlie, B.E., 1975, The C-O-H-S gaseous system, Part II: Temperature, atomic composition, and molecular equilibria in volcanic gases: American Journal of Science, v. 275, p. 377-394. Gerlach, T.M. and Nordlie, B.E., 1975, The C-O-H-S gaseous system, Part III: Magmatic gases compatible with oxides and sulfides in basaltic magmas: American Journal of Science, v. 275, p. 395-410.