| Clay Mineralogy and Zoning in CSDP Corehole VC-2A: Further Evidence for Collapse of Isotherms in the Valles Caldera |
Hulen, Jeffrey B.; Nielson, Dennis L. |
Exploration; Geological surveys; Mineralogy; Hydrothermal al |
Exploration; USA; New Mexico; Valles Caldera; Hydrothermal Alteration; Mineralization; Geothermometers; Geochemistry; Chemical Analysis |
Geothermal Resources Council Transactions |
1988 |
English |
| Stratigraphy and Hydrothermal Alteration in Well Baca-8, Sulphur Springs Area, Valles Caldera, New Mexico |
Hulen, Jeffrey B.; Nielson, Dennis L. |
Exploration; Geological surveys; Stratigraphy; Hydrothermal |
Geological Survey; Case Studies; USA; New Mexico; Valles Caldera; Caldera; Rhyolites; Tuffs; Epidote Zone; Surface Thermal Activity; Acid-Sulfate Springs; Vapor Dominated; Ring Fractures; Welding; Andesite; Stability Diagrams; Tshirege Tuffs; Microperthit |
Geothermal Resources Council Transactions |
1986 |
English |
| Stratigraphy of the Bandelier Tuff and Characterization of High-Level Clay Alteration in Borehole B-20, Redondo Creek Area, Valles Caldera, New Mexico |
Hulen, Jeffrey B.; Nielson, Dennis L. |
Exploration; Geological surveys; Stratigraphy; Hydrothermal |
— |
Geothermal Resources Council Transactions |
1983 |
English |
| Stratigraphic Permeability in the Baca Geothermal System, Redondo Creek Area, Valles Caldera, New Mexico |
Hulen, Jeffrey B.; Nielson, Dennis L. |
Exploration; Mapping; Geological surveys; Stratigraphy; Perm |
Exploration; USA; New Mexico; Valles Caldera; Lithology; Geologic Maps; Permeability |
Geothermal Resources Council Transactions |
1982 |
English |
| Early Calcite Dissolution as a Major Control on Porosity Development in The Geysers Steam Field, California -- Additional Evidence in Core from Unocal Well NEGU-17 |
Hulen, Jeffrey B.; Nielson, Dennis L.; Martin, Wes |
Exploration; Calcite; Porosity; Core sampling; Lithology; Hy |
Exploration; USA; California; Hydrothermal; Liquid Dominated; Carbonate; High Temperature; Reservoir Models; Reserves; Porosity; Quartz; Vein; Mineralization; CO2; Calcite; Franciscan; Metagraywacke |
Geothermal Resources Council Transactions |
1992 |
English |
| Wrench-Fault Tectonics and Emplacement of The Geysers Felsite |
Hulen, Jeffrey B.; Norton, Denis L. |
Felsite; Igneous Intrusion; Magmatism; Strike-skip faulting; |
The Geysers; Pluton; Felsite; Igneous Intrusion; Magmatic pressure; Strike-skip faulting; Pull-apart; Geochronology; Porosity; Steam Reservoir; Liquid-to-vapor; Transition |
Geothermal Resources Council Transactions |
2000 |
English |
| Initial Insights into the Nature, Origin, Configuration, and Thermal-Chemical Evolution of the Aidlin Steam Reservoir, Northwest Geysers Steam Field, California |
Hulen, Jeffrey B.; Norton, Denis L.; Moore, Joseph N.; Beall, Joseph J.; Walters, Mark A. |
High temperature reservoirs; Vapor dominated reservoirs; Hyd |
Geochemistry; The Geysers; Aidlin; High Temperature Reservoir; Alteration; Mineralization; Vitrinite Reflectance; Fluid Inclusions; Noncondensable Gases; Felsite; Pluton; Hydrothermal History; Numerical Modeling |
Geothermal Resources Council Transactions |
2001 |
English |
| Epithermal Vein-Hosted and Stratabound Pb-Zn Mineralization in an Active Hydrothermal System: The Southern Salton Sea Geothermal Field, California |
Hulen, Jeffrey B.; Norton, Denis L.; Moore, Joseph N.; Kaspereit, Dennis |
Lead; Zinc; Silver; Sulfides; Hydrogen sulfide; Mineralizati |
Field Studies - Salton Trough; Salton Sea Geothermal System; Epithermal; Vein; Fracture; Stratabound; Base Metals; Lead; Zinc; Silver; Sulfides; H2S; Brine; Lithology; Structure; Alteration; Mineralization; Mixing; Cooling; pH; Redox; Precipitation; Disso |
Geothermal Resources Council Transactions |
2004 |
English |
| Converging Evidence for Fluid Overpressures at Peak Temperatures in the Pre-Vapor-Dominated Geysers Hydrothermal System |
Hulen, Jeffrey B.; Quick, Jeffrey C.; Moore, Joseph N. |
Core sampling; Exploration; Geochemical surveys; Geothermome |
Development; Exploration; The Geysers; Sonoma County; California; Fluid inclusions; Pyrobitumen; Vitrinite; Geothermometry; Boiling; Brecciation; Hydraulic fracturing; Hydrothermal systems; Liquid dominated; Hydrothermal alterations; Geochemistry; Structu |
Geothermal Resources Council Transactions |
1997 |
English |
| Comparison of Reservoir and Caprock Core from The Northwest Geysers Steam Field, California--Implications for Development of Reservoir Porosity |
Hulen, Jeffrey B.; Walters, Mark A.; Nielson, Dennis L. |
Exploration; Geological surveys; Well logging; Lithology; Mi |
Drilling; Reservoir Engineering; USA; California; Sonoma; Geysers; Hydrothermal Alteration; Lithology; Mineralization; Logs; Prati 5; Prati 12; Photomicrographs; Steam Entry |
Geothermal Resources Council Transactions |
1991 |
English |
| Refined Conceptual Modeling and a New Resource Estimate for the Salton Sea Geothermal Field, Imperial Valley, California |
Hulen, Jeffrey; Kaspereit, Dennis; Norton, Denis L.; Osborn, William; Pulka, Fred S. |
— |
The Americas |
Geothermal Resources Council Transactions |
2002 |
English |
| Geochemical Assessment of San Bernardino Geothermal Well Waters after Ten Years of Production |
Hull, C. D. |
Brine chemistry; Geothermometers; Geochemical surveys; Tempe |
Production; USA; California; San Bernardino; Moderate Temperature; Direct Use; Space Heating; Geothermometers; Geologic Models; Geochemistry; Temperature Indicators; Thermodynamic Properties; Temperature Gradient Well |
Geothermal Resources Council Transactions |
1991 |
English |
| Results of Exploration Drilling in the East Branch of the Harlem Hot Springs KGRA, California |
Hull, C. D. |
Exploration; Well siting; Geochemical surveys; Geophysical s |
Exploration; Drilling; USA; California; Harlem Hot Springs KGRA; Exploration Well; Faults; Temperature Logs; Feasibility Studies; Space Heating; Geochemistry; Geothermometers; Geophysical Surveys |
Geothermal Resources Council Transactions |
1991 |
English |
| Prospecting for Hot Water in a Sedimentary Basin: Assessment of the Low-Temperature Geothermal Resource near Loma Linda, California |
Hull, C. D.; Brophy, Paul; Merey, Carlene |
Exploration; Geological surveys; Geochemical surveys; Geothe |
Exploration; Brine Technology; USA; California; San Bernardino; South San Bernardino; Reflection; Boron; Case Studies; Bicarbonate; Fluoride; Groundwater; SOLVEQ; Saturation; Fluid Mixing |
Geothermal Resources Council Transactions |
1990 |
English |
| Chemical Geothermometry and Numerical Unmixing of the Diluted Geothermal Waters of the San Bernardino Valley Region of Southern California |
Hull, C. D.; Reed, M. H.; Fisher, Kevin |
Exploration; Geochemical surveys; Geothermometers; Brine che |
Exploration; Geochemistry; California; San Bernardino; KGRA; Geothermometers; Reservoir Modeling; Equilibrium Temperature |
Geothermal Resources Council Transactions |
1987 |
English |
| U-Th Disequilibrium Dating of Authigenic Calcites in the Mazama (MZI-IIA) Geothermal Well, Oregon |
Hull, C. D.; Waibel, A. F. |
Exploration; Drilling; Core sampling; Geological surveys; Ge |
Exploration; Drilling; USA; Oregon; Klamath Falls; Crater Lake Area; Drilling; Diamond Drilling; Age Dating; Isotopes; Uranium-Thorium; Samples; Calcite; Zeolites |
Geothermal Resources Council Transactions |
1989 |
English |
| Effects of Using a Continuum Representation to Simulate Discrete Fracture Networks |
Hull, Laurence C.; Clemo, Tom M. |
Reservoir modeling; Computer modeling; Hydrogeology; Tracer |
Reservoir Engineering; Well Testing; Simulation; Fractures; Permeability; Fluid and Heat Flow; Models; Transmissity; Porosity; Pressure; Tracers |
Geothermal Resources Council Transactions |
1987 |
English |
| Recent Isotopic Measurements at Ohaaki |
Hulston J.R, Lupton J.E. and Lovelock B.G. |
Geochemistry |
— |
New Zealand Geothermal Workshop |
1996 |
English |
| The Role of Boron-Chloride and Noble Gas Isotope Ratios in TVZ Geothermal Systems |
Hulston J.R. |
Geochemistry |
— |
New Zealand Geothermal Workshop |
1995 |
English |
| Stable Isotope and Geochemical Reconnaisance of the Mokai Geothermal System, Taupo Volcanic Zone |
Hulston, J. R ., Henley, R.W., Glover, R.B. and Cox, M.A. |
Geochemistry |
— |
New Zealand Geothermal Workshop |
1981 |
English |