Geochemistry

The following publications demonstrate a wide range of geochemical studies in numerous geographic locations, documenting expertise available in evaluation of geothermal systems  using geochemistry of sampled thermal and non-thermal waters.

The photo shows sampling a hot spring in Soldier Meadows, Black Rock Desert, Nevada in 2002.

Shevenell, L., R. Penfield, R. Zehner, G. Johnson, and M. Coolbaugh, 2012.  National Geothermal Data System Geochemical Data for Exploration.  Transactions Geothermal Resources Council 36:  773-782.

2012

Possible New Empirical Method to Estimate Reservoir Temperatures

A geochemical database and associated geothermal databases (approximately 125 data sets) for Nevada geothermal systems.  New data and metadata are continually added.

2012

Coolbaugh, M., C. Sladek, P. Lechler, C. Kratt, and L. Shevenell, 2011.  Task 3.0   Geothermal Prospecting — Subtask 3.2: Shallow temperature and soil gas surveys. Prepared for: The Nevada Renewable Energy Consortium, Janurary 17, 2011. 30 p.

2011

Shevenell, L., and M. Coolbaugh, 2011.  A New Method of Evaluation of Chemical Geothermometers for Calculating Reservoir Temperatures from Thermal Springs in Nevada – Spring 2011.  Geothermal Resources Council Transactions 35: 657-661.

2011

Shevenell, L., 2010.  Summary of geochemistry in the Great Basin and needs for future research.  Presented at the Workshop on Exploration and Assessment of Geothermal Resources, September 21-22, 2010, Reno NV (too large to post).

2010

Lechler, P., Coolbaugh, M., and C. Sladek, 2009.  Multi-Gas Geochemistry at the Desert Queen Geothermal System, West-Central Nevada.   Transactions Geothermal Resources Council 33: 491-494.

2009

Coolbaugh, M., Lechler, P., Sladek, C., and C. Kratt, 2009. Carbonate Tufa Columns as Exploration Guides for Geothermal Systems in the Great Basin.  Transactions Geothermal Resources Council 33: 461-466.

2009

Oppliger, G., L. Shevenell, and M. Coolbaugh.  2007.  Final report on the InSAR and geochemical studies at Steamboat Hills (UNR-REC Work Package Identifier I-2-1a “Site Assessment), Submitted to National Renewable Energy Laboratory, January 31, 2007, 31 p

2007

Zehner, R., M.F. Coolbaugh, and L. Shevenell, 2006.  Regional groundwater geochemical trends in the Great Basin:  Implications for geothermal exploration.   Geothermal Resources Council Transactions 30: 117-126.

2006

Shevenell, L., and De Rocher, T., 2005, Evaluation of chemical geothermometers for estimating reservoir temperatures in Nevada thermal systems, Geothermal Resources Council Transactions, v. 29, p. 303–308 (published on CD).

2005

Shevenell, L., P. Lechler, L. Garside, and M. Coolbaugh.  2005, Geochemical Sampling of Thermal and Non-Thermal Waters in Nevada: Continued Evaluation of Geothermal Resources.  U.S. Department of Energy Geothermal Technologies Program Exploration  Peer Review Report, June 30, 2005, 6 p.

2005

Coolbaugh, M., Arehart, G., Faulds, J., Garside, L., and Shevenell, L., 2005, Active geothermal systems and associated gold deposits in the Great Basin: Geothermal Resources Council Transactions, 29: 215–221 (published on CD).

2005

Shevenell, L., and L. Garside, 2003, Geochemical sampling of thermal waters in Nevada. Geothermal Resources Council Transactions, 27: 27–31.

2003

Sampling Difficult Discharge Locations

Coolbaugh, M., 2003, Regional Geologic Controls, Geochemical Characteristics, and Thermal Infrared Signatures of Geothermal Systems of the Great Basin: GSN Newsletter (Geological Society of Nevada), v. 17, n. 1, p. 3.

2003

Skalbeck, J.D., Shevenell, L., and Widmer, M., 2002, Mixing of thermal and non-thermal waters in the Steamboat Hills area, Nevada: Geothermics, v. 31, no. 1, p. 69–90.

2002

Shevenell, L., Garside, L., Arehart, G., van Soest, M., and Kennedy, B.M., 2002, Geochemical sampling of thermal and nonthermal waters in Nevada to evaluate the potential for resource utilization. Geothermal Resources Council Transactions, v. 26, p. 501-505

2002

Arehart, G.B., Coolbaugh, M.F., and Poulson, S.R., 2002, Geochemical characterization of geothermal systems in the Great Basin: implications for exploration, exploitation, and environmental issues: Proceedings, Annual Meeting, Reno, NV, Sept. 22-25, 2002,

2002

Shevenell, L., and Goff, F., 2000, Temporal geochemical variations in volatile emissions from Mount St. Helens, 1980–1994: Journal of Volcanology and Geothermal Research, v. 9, no. 1–4, p. 123–138.

2000

Shevenell, L., and F. Goff. 2000.  Temporal Geochemical Variations In Volatile Emissions From Mount St. Helens, USA, 1980-1994.  Session 14-3: Geochemistry of Hydrothermal Processes, lGC 2000 (Abs)

2000

De Rocher, T., and Shevenell, L., 1998, Geochemical modeling of productive geothermal resources in Nevada: Calibration and testing of the DOE brine chemistry models GEOFLUID and TEQUIL, Final Report: Submitted to the DOE Geothermal Division, U.S. Department of Energy DOE/MISC/93, 194 p., 14 appendices. (no link)

1998

Goff, F., Adams, A.I., McMurtry, G.M., Shevenell, L., Pettit, D.R., Stimac, J.A., and Werner, C., 1997, Magmatic tritium: Los Alamos National Laboratory Report LA-UR-97-1516, 12 p.

1997

De Rocher, T., and Shevenell, L., 1997, Geochemical modeling of productive geothermal resources in Nevada: Calibration and testing of the DOE brine chemistry models GEOFLUID and TEQUIL: Interim Report submitted to the DOE Geothermal Division, 1/19/97, 5 p.  (no link)

1997

Shevenell, L., and Goff, F., 1996, In-situ tritium production and fluid mean residence times in the two subsystems of the Valles Caldera hydrothermal system, New Mexico: New Mexico Geological Society Guidebook, 47th Field Conference, Jemez Mountains Region, p 455-463.

1996

Flynn, T., Shevenell, L., Buchanan, P., Garside, L.J., Trexler, D., 1995, Geothermal resource assessment of the Yucca Mountain area, Nye County, Nevada, Final report: Prepared for the U.S. Dept. of Energy, Yucca Mountain Site Characterization Office, 61 p., appendix, figures, and plates.

1995

Shevenell, L., and Goff, F., 1995, Evolution of geothermal waters at Mount St. Helens, Washington, U.S.A.: Journal of Volcanology and Geothermal Research, v. 69, no. 1/2, p. 73–93.

1995

Shevenell, L., and Goff, F., 1995, The use of tritium in groundwaters to determine fluid mean residence times of Valles Caldera hydrothermal fluids, New Mexico, U.S.A.: Journal of Volcanology and Geothermal Research, v. 67, no. 1–3, p. 187–205.

1995

Shevenell, L., and F. Goff, 1994.  Evoluation of hydroghermal waters at Mount St. Helens, Washington.  Geological Society of America, Abstracts with Programs (Abs)

1994

Shevenell, L., and Goff, F., 1993, Addition of magmatic volatiles into the hot spring waters of Loowit Canyon, Mount St. Helens, Washington, U.S.A.: Bulletin of Volcanology, v. 55, no. 7, p. 489–503.

1993

Goff, F., Gardner, J.N., Hulen, J.B., Nielson, D.L., Charles, R., WoldeGabriel, G., Vuataz, F.-D., Musgrave, J.A., Shevenell, L., and Kennedy, B.M., 1992, The Valles caldera hydrothermal system, past and present, New Mexico, USA: Scientific Drilling, 3: 181-204.

1992

Shevenell, L., 1991, Tritium in the thermal waters discharging in Loowit Canyon, Mount St. Helens, Washington, U.S.A.: Chemical Geology (Isotope Geoscience Section), v. 94, p. 123–135.

1991

Mini-separator used to collect brine, steam and gas from geothermal wells

Goff, F., Goff, S.J., Kelkar, S., Shevenell, L., Truesdell, A., Musgrave, J., Rufenacht, H., and Flores, W., 1991, Exploration drilling and reservoir model of the Platanares geothermal system, Honduras, Central America: Journal of Volcanology and Geothermal Research 45 (1–2) March 1991: 101–123

1991

Janik, C., Truesdell, A., Goff, F., Shevenell, L., Stallard, M., Trujillo, P., and Counce, D., 1991, A geochemical model of the Platanares geothermal system Honduras: Journal of Volcanology and Geothermal Research, v. 45, p. 125–146.

1991

Shevenell, L., 1990, Chemical and Isotopic Investigation of the New Hydrothermal System at Mt. St. Helens, Washington: University of Nevada, Reno, 282 p. (too large to post)

1990

Goff, F., and L. Shevenell, 1990.  Isotopic interactions between meteoirc water and magmatic water around the post-1980 lava dome, Mount St. Helens, Washington.  Transactions AGU -EOS (Abs).

1990

Goff, F., Shevenell, L., Gardner, J.N., Ostlund, H.G., Colucci, M., and Criswell, W., 1990, The tritium content of “magmatic” water emitted from the post-1980 lava dome, Mount St. Helens Volcano, Washington: Conference on Anomalous Nuclear Effects in Deuterium/Solid Systems, Brigham Young University, Provo, Utah, October 22–24, 1990.

1990

Shevenell, L., 1989, Preliminary evaluation of thermal and non-thermal waters at selected sites in Panama, Central America: Los Alamos National laboratory Report LA-11103-MS, 27 p. (English & Spanish versions).

1989

Goff, F., and L. Shevenell, 1989.  Deuterium and Oxygen-18 Relations Among Meteoric Waters, “New” Hot spring waters, fumarole condensates and volcanic rocks, Mount St. Helens, Washington.  Transactions EOS (Abs)

1989

Goff, F., L. Shevenell, J. Gardner, H.G. Ostlund, M. Colucci, and W. Criswell, 1989. The Tritium Content of “Magmatic” Water Emitted from the Post-1980 Lava Dome, Mount St. Helens Volcano, Washington. Geological Society of America Abstracts (Abs)

1989

Shevenell, L., and F. Goff, 1989. Tritium in the Fumarole Condensates of the Dacite Dome and New Hot Springs of Loowit Canyon, Mount St. Helens, Washington.  Transactions AGU – EOS (Abs)

1989

Goff, F., Shevenell, L., Gardner, J.N., Vuataz, F.D., and Grigsby, C.O., 1988, The hydrothermal outflow plume of Valles caldera, New Mexico and a comparison with other outflow plumes: Journal of Geophysical Research, v. 93, no. B6, p. 6041–6058.

1988

Truesdell, A.H., Janik, C.J., Goff, F.E., Shevenell, L.A., Trujillo, P.E., Jr., Counce, D.A., Kennedy, B.M., and Paredes, J.R., 1987, The origin of thermal waters of Honduras and puzzling variations in spring chemistry: Proceedings of the Ninth New Zealand Workshop, 9 p.

1987

Shevenell, L., Goff, F., Grigsby, C.O., Janik, C.J., Trujillo, P.E., Jr., and Counce, D., 1987, Chemical and isotopic characteristics of thermal fluids in the Long Valley Caldera lateral flow system, California: Transactions of the Geothermal Research Council 11: 195-201.

1987

Goff, F., and Shevenell, L., 1987, Travertine deposits at Soda Dam, New Mexico and their implications for the age and evolution of the Valles Caldera hydrothermal system: Bulletin of the Geological Society of America, v. 99, p. 292–302.

1987

Truesdell, A.H., Stallard, M.L., Trujillo, P.E., Jr., Counce, D., Janik, C.J., Winnett, T.L., Goff, F., and Shevenell, L., 1987, Interpretation of fluid chemistry from the PLTG-1 exploration drill hole, Platanares, Honduras: Transactions Geothermal Resources Council Transactions, 11: 217-222.

1987

Shevenell, L., Goff, F., Vuataz, F.D., Trujillo, P.E., Jr., Counce, D., Janik, C.J., and Evans, W., 1987, Hydrogeochemical data for thermal and non-thermal waters and gases of the Valles caldera—Southern Jemez Mountains region, New Mexico: Los Alamos National Labratory, 53 p.

1987

Goff, F., Shevenell, L., Grigsby, C.O., and Dennis, B., 1987, Downhole fluid sampling at the SSSDP California State 2-14 well, Salton Sea, California: Los Alamos National Laboratory Report LA-11052-OBES, 32 p.

1987

Trujillo, P.E., Jr., Counce, D., Grigsby, C.O., Goff, F., and  Shevenell, L., 1987, Chemical analysis and sampling techniques for geothermal fluids and gases at the Fenton Hill Laboratory: Los Alamos National Laboratory Report LA-11006-MS, 84 p.

1987

Goff, F., Truesdell, A.H., Grigsby, C.O., Janik, C.J., Shevenell, L., Paredes, R., Gutierrez, J.W., Trujillo, P.E., Jr., and Counce, D., 1987, Hydrogeochemical investigations of six geothermal sites, Honduras, C.A.: Los Alamos National Laboratory Report L

1987

Goff, F., Shevenell, L., Truesdell, A.H., Janik, C.J., Grigsby, C.O., and Paredes, R., 1986, Hydrogeochemistry and preliminary reservoir model of the Platanares geothermal system, Honduras, C.A.: Transactions of the Geothermal Research Council 10: 125-130

1986

Truesdell, A.H., Janik, C.J., Goff, F., Grigsby, C.O., and Shevenell, L., 1986, The geochemistry of the San Ignacio Hot Springs, Honduras: Transactions of the Geothermal Resources Council, v. 10, p. 155–160.

1986

Goff, F., Grigsby, C.O., Shevenell, L., and Gutierrez, J.W., 1986, Geochemistry at Honduran geothermal sites: Los Alamos Science, Los Alamos National Laboratory, v. 14, p. 90–93.

1986

Goff, F., Shevenell, L., Grigsby, C.O., Dennis, B.R., and  White, A., 1986, Downhole fluid sampling at the SSSDP California State 2-14 well, Salton Sea, California: SSSDP Conference at Geothermal Resources Council Meeting, Palm Springs, CA, September 28, 3 p.

1986

Shevenell, L., Goff, F., Gritzo, L., and Trujillo, P.E., Jr., 1985, Collection and analysis of geothermal gases: Los Alamos National Laboratory Report LA-10482-OBES, 25 p.

1985

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