Regional implications of heat flow of the Snake River Plain, Northwestern United States

Blackwell, David

doi:10.1016/0040-1951(89)90025-5

Cited by 46 publications

(50 citation statements)

References 35 publications

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“…Of particular interest is the development of a regional topographic profile due to lithospheric thermal contraction that is very similar to the ocean ridge topographic profile. The heat flow in this area is generally above 100 mWm-2 (Blackwell, 1989).…”

Section: Eastern United States a Simplified Heat Flow Map For The Easmentioning

confidence: 98%

Heat flow patterns of the North American continent: A discussion of the DNAG Geothermal Map of North America

Blackwell¹,

Steele²,

Carter³

1990

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Section: Eastern United States a Simplified Heat Flow Map For The Easmentioning

confidence: 98%

Heat flow patterns of the North American continent: A discussion of the DNAG Geothermal Map of North America

Blackwell¹,

Steele²,

Carter³

1990

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“…Using the deeper thermal conductivity measurements would introduce unnecessary error since there is not an equally deep equilibrium thermal gradient to use for heat flow calculation. The average heat flow is 132 ± 26 mW/m 2 calculated using the thermal gradient from 1000 to 1400 m, and the average thermal conductivity for samples at 983 and 1550 m. This value is statistically the same as other deep wells in the SRP (Blackwell 1989), and is thus considered representative of background regional heat flow.…”

Section: Geothermal Gradientsmentioning

confidence: 79%

Effect of an 860-m thick, cold, freshwater aquifer on geothermal potential along the axis of the eastern Snake River Plain, Idaho

et al. 2017

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“…A series of temperature studies has been conducted since the 1960's to examine heat flow and structural features (Blackwell 1989 andBlackwell and Steele 1992;Blackwell et al 1992;Smith et al 2001;Brott et al 1981;and Wood and Bennecke 1994). These studies provided information about the effective base of the SRPA and supported groundwater mass balance studies.…”

Section: Ineel Researchersmentioning

confidence: 99%

INEEL Subregional Conceptual Model Report; Volume 1 - Summary of Existing Knowledge of Natural and Anthropogenic Influences Governing Subsurface Contaminant Transport in the INEEL Subregion of the Eastern Snake River Plain

Wichlacz¹,

Orr²

2002

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The National Research Council has defined a conceptual model as "an evolving hypothesis identifying the important features, processes, and events controlling fluid flow and contaminant transport of consequence at a specific field site in the context of a recognized problem." Presently, several subregional conceptual models are under development at the Idaho National Engineering and Environmental Laboratory (INEEL). Additionally, facility-specific conceptual models have been described as part of INEEL environmental restoration activities. Compilation of these models is required to develop a comprehensive conceptual model that can be used to strategically plan for future groundwater research activities at the INEEL.Conceptual models of groundwater flow and contaminant transport at the INEEL include the description of the geologic framework, matrix hydraulic properties, and inflows and outflows. They also include definitions of the contaminant source term and contaminant transport mechanisms.The geologic framework of the INEEL subregion is described by the geometry of the system, stratigraphic units within the system, and structural features that affect groundwater flow and contaminant transport. These elements define geohydrologic units that make up the Snake River Plain Aquifer (SRPA).The United States Geological Survey (USGS) conceptual model encompasses approximately 1,920 mi 2 of the eastern Snake River Plain. The Waste Area Group (WAG)-10 model includes the USGS area and additional areas to the northeast and southeast. Both conceptual models are bounded to the northwest by the Pioneer Mountains, Lost River Range, and Lemhi Mountains. They are bounded to the southeast by groundwater flow paths determined from aquifer water-level contours. The upgradient extent of the USGS model is a water-level contour that includes the northeastern boundary of the INEEL. The WAG-10 model includes more of the Mud Lake area to utilize previous estimates of underflow into the subregion. Both conceptual models extend approximately 25 miles to the southwest of the INEEL, a distance sufficient to include known concentrations of contaminant tracers.Several hypotheses have been developed concerning the effective thickness of the SRPA at the INEEL. The USGS model has defined the effective thickness from electrical resistivity and borehole data to be as much as 2,500 ft in the eastern part of the subregion and as much as 4,000 ft in the southwestern part. The WAG-10 model has developed two alternatives using aquifer-temperature and electricalresistivity data. The "thick" aquifer interpretation utilizes colder temperature data and includes a northtrending zone in which the thickness exceeds 1,300 ft and with a maximum thickness of 1,700 ft. The "thin" aquifer interpretation minimizes aquifer thickness, with thickness ranging from 328 to 1,300 ft. Facility-specific models generally have focused efforts on the upper 250 ft of saturation.Conceptual models have utilized a stratigraphic data set to define geohydrologic units within the INEEL...

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Regional implications of heat flow of the Snake River Plain, Northwestern United States

Cited by 46 publications

References 35 publications

Heat flow patterns of the North American continent: A discussion of the DNAG Geothermal Map of North America

Heat flow patterns of the North American continent: A discussion of the DNAG Geothermal Map of North America

Effect of an 860-m thick, cold, freshwater aquifer on geothermal potential along the axis of the eastern Snake River Plain, Idaho

INEEL Subregional Conceptual Model Report; Volume 1 - Summary of Existing Knowledge of Natural and Anthropogenic Influences Governing Subsurface Contaminant Transport in the INEEL Subregion of the Eastern Snake River Plain

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