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Title: Repository site definition in basalt: Pasco Basin, Washington

Abstract

Discussion of the regional setting, geology, hydrology, and geochemistry of the Pasco Basin are included in this report. Pasco basin is a structural and topographic basin of approximately 2000 mi/sup 2/ (5180 km/sup 2/) located within the Yakima Fold Belt Subprovince of the Columbia Plateau. The stratigraphic sequence within the basin consists of an undetermined thickness of lower Miocene and younger flood basalts with interbedded and overlying sedimentary units. This sequence rests upon a basement of probably diverse rock types that may range in age from precambrian through early Tertiary. Although a large amount of information is available on the hydrology of the unconfined aquifer system, ground-water flow within the basin is, in general, poorly understood. Recharge areas for the Mabton interbed and the Saddle Mountains Formation are the highlands surrounding the basin with the flow for these units toward Gable Butte - Gable Mountain and Lake Wallula. Gable Butte - Gable Mountain probably is a ground-water sink, although the vertical flow direction in this zone is uncertain. The amount of upward vertical leakage from the Saddle Mountains Formation into the overlying sediments or to the Columbia River is unknown. Units underlying the Mabton interbed may have a flow schememore » similar to those higher units or a flow scheme dominated by interbasin flow. Upward vertical leakage either throughout the basin, dominantly to the Columbia River, or dominantly to Lake Wallula has been proposed for the discharge of the lower units. None of these proposals is verified. The lateral and vertical distribution of major and minor ions in solution, Eh and pH, and ion exchange between basalt and ground-water are not well defined for the basin. Changes in the redox potential from the level of the subsurface facility to the higher stratigraphic levels along with the numerous other factors influencing K/sub d/, result in a poor understanding of the retardation process.« less

Authors:
; ;
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Tech. Reps., Inc., Albuquerque, NM (USA)
OSTI Identifier:
5292161
Report Number(s):
NUREG/CR-2352; SAND-81-2088
ON: DE82013415; TRN: 82-014185
DOE Contract Number:  
AC04-76DP00789
Resource Type:
Technical Report
Resource Relation:
Other Information: Portions of document are illegible
Country of Publication:
United States
Language:
English
Subject:
58 GEOSCIENCES; 12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; BASALT; GEOLOGY; ROCK-FLUID INTERACTIONS; COLUMBIA RIVER BASIN; GEOCHEMISTRY; HYDROLOGY; EQUILIBRIUM; FLOW RATE; GEOLOGIC FAULTS; GROUND WATER; ION EXCHANGE; PH VALUE; RADIOACTIVE WASTE DISPOSAL; RADIONUCLIDE MIGRATION; RECHARGE; THICKNESS; UNDERGROUND DISPOSAL; CHEMISTRY; DIMENSIONS; ENVIRONMENTAL TRANSPORT; GEOLOGIC STRUCTURES; HYDROGEN COMPOUNDS; IGNEOUS ROCKS; MANAGEMENT; MASS TRANSFER; OXYGEN COMPOUNDS; ROCKS; VOLCANIC ROCKS; WASTE DISPOSAL; WASTE MANAGEMENT; WATER; 580100* - Geology & Hydrology- (-1989); 580300 - Mineralogy, Petrology, & Rock Mechanics- (-1989); 052002 - Nuclear Fuels- Waste Disposal & Storage

Citation Formats

Guzowski, R. V., Nimick, F. B., and Muller, A. B. Repository site definition in basalt: Pasco Basin, Washington. United States: N. p., 1982. Web. doi:10.2172/5292161.
Guzowski, R. V., Nimick, F. B., & Muller, A. B. Repository site definition in basalt: Pasco Basin, Washington. United States. https://doi.org/10.2172/5292161
Guzowski, R. V., Nimick, F. B., and Muller, A. B. 1982. "Repository site definition in basalt: Pasco Basin, Washington". United States. https://doi.org/10.2172/5292161. https://www.osti.gov/servlets/purl/5292161.
@article{osti_5292161,
title = {Repository site definition in basalt: Pasco Basin, Washington},
author = {Guzowski, R. V. and Nimick, F. B. and Muller, A. B.},
abstractNote = {Discussion of the regional setting, geology, hydrology, and geochemistry of the Pasco Basin are included in this report. Pasco basin is a structural and topographic basin of approximately 2000 mi/sup 2/ (5180 km/sup 2/) located within the Yakima Fold Belt Subprovince of the Columbia Plateau. The stratigraphic sequence within the basin consists of an undetermined thickness of lower Miocene and younger flood basalts with interbedded and overlying sedimentary units. This sequence rests upon a basement of probably diverse rock types that may range in age from precambrian through early Tertiary. Although a large amount of information is available on the hydrology of the unconfined aquifer system, ground-water flow within the basin is, in general, poorly understood. Recharge areas for the Mabton interbed and the Saddle Mountains Formation are the highlands surrounding the basin with the flow for these units toward Gable Butte - Gable Mountain and Lake Wallula. Gable Butte - Gable Mountain probably is a ground-water sink, although the vertical flow direction in this zone is uncertain. The amount of upward vertical leakage from the Saddle Mountains Formation into the overlying sediments or to the Columbia River is unknown. Units underlying the Mabton interbed may have a flow scheme similar to those higher units or a flow scheme dominated by interbasin flow. Upward vertical leakage either throughout the basin, dominantly to the Columbia River, or dominantly to Lake Wallula has been proposed for the discharge of the lower units. None of these proposals is verified. The lateral and vertical distribution of major and minor ions in solution, Eh and pH, and ion exchange between basalt and ground-water are not well defined for the basin. Changes in the redox potential from the level of the subsurface facility to the higher stratigraphic levels along with the numerous other factors influencing K/sub d/, result in a poor understanding of the retardation process.},
doi = {10.2172/5292161},
url = {https://www.osti.gov/biblio/5292161}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Mar 01 00:00:00 EST 1982},
month = {Mon Mar 01 00:00:00 EST 1982}
}