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Geologic aspects of geothermal development in northern Dixie Valley, Nevada
AuthorZelinsky, Anne E.
Geological Sciences and Engineering
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Prospective geothermal development in Dixie Valley makes pertinent a consideration of the following geologic conditions there: l) groundwater hydrology; 2) engineering properties of soils; 3) seismicity; 4) flashfloods; 5) slope stability; and 6) soil erosion. The hydrologic characteristics of the reservoir determine the potential for induced seismicity and subsidence. From present water chemistry data, silica precipitation during production should not be a problem. Five soil units were tested for engineering properties. The two alluvial fan units were found to be the most suitable for building. Liquefaction and/or differential settling are potential problems in the playa, valley fill and delta deposits. Dixie Valley is in a seismically active area. The maximum magnitude earthquake expected is 7.5 with up to five meters of displacement. Flashfloods are a problem in the valley. The potential for slope instability is minimal in the basin. Soil erosion has been accelerated from the extensive off-road travel.
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engineering properties of soils
water chemistry data
alluvial fan units
Mackay Science Project