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Title: Solute geochemistry of the Snake River Plain regional aquifer system, Idaho and eastern Oregon

Abstract

Three geochemical methods were used to determine chemical reactions that control solute concentrations in the Snake River Plain regional aquifer system: (1) calculation of a regional solute balance within the aquifer and of mineralogy in the aquifer framework to identify solute reactions, (2) comparison of thermodynamic mineral saturation indices with plausible solute reactions, and (3) comparison of stable isotope ratios of the groundwater with those in the aquifer framework. The geothermal groundwater system underlying the main aquifer system was examined by calculating thermodynamic mineral saturation indices, stable isotope ratios of geothermal water, geothermometry, and radiocarbon dating. Water budgets, hydrologic arguments, and isotopic analyses for the eastern Snake River Plain aquifer system demonstrate that most, if not all, water is of local meteoric and not juvenile or formation origin. Solute balance, isotopic, mineralogic, and thermodynamic arguments suggest that about 20% of the solutes are derived from reactions with rocks forming the aquifer framework. Reactions controlling solutes in the western Snake river basin are believed to be similar to those in the eastern basin but the regional geothermal system that underlies the Snake river Plain contains total dissolved solids similar to those in the overlying Snake River Plain aquifer system but containsmore » higher concentrations of sodium, bicarbonate, silica, fluoride, sulfate, chloride, arsenic, boron, and lithium, and lower concentrations of calcium, magnesium, and hydrogen. 132 refs., 30 figs., 27 tabs.« less

Authors:
;
Publication Date:
OSTI Identifier:
6644667
Alternate Identifier(s):
OSTI ID: 6644667
Resource Type:
Book
Resource Relation:
Related Information: USGS Open-File Report 86-247
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; GROUND WATER; CONTAMINATION; IDAHO; WATER QUALITY; OREGON; SNAKE RIVER PLAIN; GEOCHEMISTRY; ACID CARBONATES; ARSENIC; BORON; CALCIUM; CARBON ISOTOPES; CHLORIDES; ECOLOGICAL CONCENTRATION; FLUORIDES; HYDROGEN; ISOTOPE DATING; LITHIUM; MAGNESIUM; MONITORING; REGRESSION ANALYSIS; SILICA; SODIUM; SULFATES; THERMODYNAMICS; AGE ESTIMATION; ALKALI METALS; ALKALINE EARTH METALS; CHALCOGENIDES; CHEMISTRY; CHLORINE COMPOUNDS; ELEMENTS; ENVIRONMENTAL QUALITY; FEDERAL REGION X; FLUORINE COMPOUNDS; HALIDES; HALOGEN COMPOUNDS; HYDROGEN COMPOUNDS; ISOTOPES; MATHEMATICS; METALS; MINERALS; NONMETALS; NORTH AMERICA; OXIDE MINERALS; OXIDES; OXYGEN COMPOUNDS; SEMIMETALS; SILICON COMPOUNDS; SILICON OXIDES; STATISTICS; SULFUR COMPOUNDS; USA; WATER 540320* -- Environment, Aquatic-- Chemicals Monitoring & Transport-- (1990-); 540311 -- Environment, Aquatic-- Basic Studies-- Radiometric Techniques-- (1990-)

Citation Formats

Wood, W.W., and Low, W.H. Solute geochemistry of the Snake River Plain regional aquifer system, Idaho and eastern Oregon. United States: N. p., 1987. Web.
Wood, W.W., & Low, W.H. Solute geochemistry of the Snake River Plain regional aquifer system, Idaho and eastern Oregon. United States.
Wood, W.W., and Low, W.H. Thu . "Solute geochemistry of the Snake River Plain regional aquifer system, Idaho and eastern Oregon". United States.
@article{osti_6644667,
title = {Solute geochemistry of the Snake River Plain regional aquifer system, Idaho and eastern Oregon},
author = {Wood, W.W. and Low, W.H.},
abstractNote = {Three geochemical methods were used to determine chemical reactions that control solute concentrations in the Snake River Plain regional aquifer system: (1) calculation of a regional solute balance within the aquifer and of mineralogy in the aquifer framework to identify solute reactions, (2) comparison of thermodynamic mineral saturation indices with plausible solute reactions, and (3) comparison of stable isotope ratios of the groundwater with those in the aquifer framework. The geothermal groundwater system underlying the main aquifer system was examined by calculating thermodynamic mineral saturation indices, stable isotope ratios of geothermal water, geothermometry, and radiocarbon dating. Water budgets, hydrologic arguments, and isotopic analyses for the eastern Snake River Plain aquifer system demonstrate that most, if not all, water is of local meteoric and not juvenile or formation origin. Solute balance, isotopic, mineralogic, and thermodynamic arguments suggest that about 20% of the solutes are derived from reactions with rocks forming the aquifer framework. Reactions controlling solutes in the western Snake river basin are believed to be similar to those in the eastern basin but the regional geothermal system that underlies the Snake river Plain contains total dissolved solids similar to those in the overlying Snake River Plain aquifer system but contains higher concentrations of sodium, bicarbonate, silica, fluoride, sulfate, chloride, arsenic, boron, and lithium, and lower concentrations of calcium, magnesium, and hydrogen. 132 refs., 30 figs., 27 tabs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1987},
month = {1}
}

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