Author: J. R. BowmanPublisher:
ISBN:
Category : Isotope geology
Languages : en
Pages : 36
Book Description
Stable Isotope Investigation of Fluids and Water-rock Interaction in the Roosevelt Hot Springs Thermal Area, Utah
Author: J. R. BowmanPublisher:
ISBN:
Category : Isotope geology
Languages : en
Pages : 36
Book Description
Stable Isotope Investigation of Fluids and Water-rock Interactions in the Roosevelt Hot Springs Thermal Area, Utah
Author: University of UtahStable Isotope Investigation of Fluids and Water-rock Interaction in the Roosevelt Hot Springs Thermal Area, Utah
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Carbon-hydrogen-oxygen isotope compositions have been measured in regional cold waters, geothermal fluids, and hydrothermally altered rocks from the Roosevelt Hot Springs geothermal area. These data have been used, in conjunction with other geological and geochemical data from this geothermal system, to place some limits on the origin of geothermal fluids and reservoir carbon, the fluid recharge area, physical-chemical environment of hydrothermal alteration, and relative permeability of the geothermal system. The similarity of hydrogen isotope compositions of local meteoric water and geothermal reservoir fluid indicate that the geothermal fluids are virtually entirely of surface derivation. An isotopically reasonable source area would be the Mineral Mountains directly to the east of the Roosevelt system. Hydrothermal calcite appears to be in isotopic equilibrium with the deep reservoir fluid. The deltaC13 values of deep calcites and T- pH-f02 conditions of the reservoir defined by measured temperature, fluid chemistry, and alteration mineralogy fix the delta13C value of the geothermal system to -5 to -6.5% (PDB). These values do not unambiguously define any one source or process, however. There is a relatively small increase in 18O of geothermal fluids relative to their cold surface water precursors and significant 18O depletion accompanying hydrothermal alteration of the granitic host rock. These isotopic shifts indicate a high ratio of geothermal fluid to altered rock for the geothermal system, implying relatively rapid (geologically) recirculation rates and significant permeability of the geothermal system.
Light Stable Isotope Study of the Roosevelt Hot Springs Thermal Area, Southwestern Utah
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
The isotopic composition of hydrogen, oxygen, and carbon has been determined for regional cold springs, thermal fluids, and rocks and minerals from the Roosevelt Hot Springs thermal area. The geothermal system has developed within plutonic granitic rocks and amphibolite facies gneiss, relying upon fracture-controlled permeability for the migration of the thermal fluids. Probably originating as meteoric waters in the upper elevations of the Mineral Mountains, the thermal waters sampled in the production wells display an oxygen isotopic shift of at least +1.2. Depletions of delta 18O in wole rock, K-feldspar, and biotite have a positive correlation with alteration intensity. W/R mass ratios, calculated from the isotopic shifts of rock and water, range up to 3.0 in a producing horizon of one well, although the K-feldspar has experienced only 30% exchange with the thermal waters. While veinlet quartz has equilibrated with the thermal waters, the 18O values of K-mica clay, an alteration product of plagioclase, mimic the isotopic composition of K-feldspar and whole rock. This suggests that locally small W/R ratios enable plagioclase to influence its alteration products by isotopic exchange.
思想改造文選
Author: Publisher:
ISBN:
Category : Sino-Japanese War, 1937-1945
Languages : en
Pages :
Book Description
Energy Research Abstracts
Author: A light stable isotope study of the Roosevelt Hot Springs thermal area, southwestern Utah
Author: David Tullar RohrsPublisher:
ISBN:
Category : Geothermal resources
Languages : en
Pages : 174
Book Description
Light Stable Isotope Studies of Spring and Thermal Waters from the Roosevelt Hot Springs and Cove Fort/Sulphurdale Thermal Areas and of Clay Minerals from the Roosevelt Hot Springs Thermal Area
Author: John Randall BowmanPublisher:
ISBN:
Category : Cove Fort-Sulphurdale (Utah)
Languages : en
Pages : 72
Book Description
Geothermal Energy Update
Author: Publisher:
ISBN:
Category : Geothermal engineering
Languages : en
Pages : 364
Book Description
Annotated Geothermal Bibliography of Utah
Author: Publisher: Utah Geological Survey
ISBN: 155791088X
Category : Technology & Engineering
Languages : en
Pages : 84
Book Description
A bibliography of Utah geothermal references through 1984. These references which directly pertain to a geothermal resources are annotated. The annotations are intended to inform the reader of the information contained in the article, not to summarize the results. Accompanying the bibliography is a list and description of geothermal projects and commercial geothermal developments in Utah from 1966 to the present that have been wholly or partially funded through Federal or State programs. The references listed in the project descriptions are keyed to the bibliography. Most of this work is by government agencies or universities. Private or industry-funded geothermal developments are not listed. The references are indexed geographically either under 1.) United States (national studies), 2.) regional – western United States or physiographic province, 3.) Utah – statewide and regional, or 4.) county. Reports concerning a particular hot spring or thermal area are listed under both the thermal area and the county names.