The Low-temperature Geothermal Resource and Stratigraphy of Portions of Yakima County, Washington PDF Download
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Author: John Biggane
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 128
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Book Description
Author: John Biggane
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 128
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
The low-temperature geothermal resource of portions of Yakima County, south-central Washington, is defined by several least squares linear regression analyses of bottom-hole temperature and depth data. Bottom-hole temperature and depth data were separated into fourteen well data groups based on geographic proximity, land slope azimuth, and position within the regional ground-water flow system. The depths of these wells range from over 50m to almost 600m. The regression analyses of these well data groups indicate that the projected land-surface temperature and geothermal gradient range from 10.6 to 14.0°C and from 24.9 to 52.2°C/km, respectively. Stratigraphic correlation diagrams developed from borehole geophysical and lithologic logs are given for localities within the lower Yakima, Black Rock, Moxee, Ahtanum, Cowiche, and Naches valleys. These correlation diagrams are combined with their respective borehole temperature logs and well data group predicted temperature curves to assess the validity of the regression analyses and to determine aquifer locations, temperatures, and directions of intra-borehole flow. A regression analysis of data from wells of south-central Washington with bottom-hole depths of over 700m to almost 3km suggests that the projected land-surface temperature and geothermal gradient of this depth interval are 21.8°C and 31.3°C/km, respectively. The depth to the 100°C isotherm is approximately 2513m.
Author: Washington (State). Division of Geology & Earth Resources
Publisher:
ISBN:
Category : Geothermal resources
Languages : en
Pages : 37
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Author: Scott Widness
Publisher:
ISBN:
Category : Connell (Wash.)
Languages : en
Pages : 27
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Author:
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ISBN:
Category : Power resources
Languages : en
Pages : 552
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Author: J. Eric Schuster
Publisher:
ISBN:
Category : Geothermal resources
Languages : en
Pages : 53
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Author: Michael A. Korosec
Publisher:
ISBN:
Category : Geothermal resources
Languages : en
Pages : 20
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Author: Geological Survey (U.S.)
Publisher:
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Category :
Languages : en
Pages :
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Author:
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Category :
Languages : en
Pages :
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This report presents information on the location, physical characteristics, and water chemistry of low-temperature geothermal resources in Washington. The database includes 941 thermal (>20C or 68F) wells, 34 thermal springs, lakes, and fumaroles, and 238 chemical analyses. Most thermal springs occur in the Cascade Range, and many are associated with stratovolcanoes. In contrast, 97 percent of thermal wells are located in the Columbia Basin of southeastern Washington. Some 83.5 percent are located in Adams, Benton, Franklin, Grant, Walla Walla, and Yakima Counties. Yakima County, with 259 thermal wells, has the most. Thermal wells do not seem to owe their origin to local sources of heat, such as cooling magma in the Earth's upper crust, but to moderate to deep circulation of ground water in extensive aquifers of the Columbia River Basalt Group and interflow sedimentary deposits, under the influence of a moderately elevated (41C/km) average geothermal gradient.
Author:
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ISBN:
Category : Fuel
Languages : en
Pages : 356
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