The Geology of the Snyderville Basin, Western Summit County, Utah, and Its Relation to Ground-water ConditionsFrancis X. Ashland, C.E. Bishop, M. Lowe, B.H. Hayes Utah Geological Survey, 2001 - 59 pages The purpose of this study is to provide geologic information important
in assessing ground-water resources and siting water wells in the
Snyderville basin. This geologic study was one phase of a cooperative
and more comprehensive water-resource investigation. Subsequent phases
conducted by the U.S. Geological Survey Water Resources Division (USGS
WRD), focused on the hydrology of the Snyderville basin. The information
presented in this report is generalized and is not intended to
substitute for site-specific investigations. Future detailed studies
will add to the understanding of the geology and ground-water resources
of the study area and supplement the information presented herein. 59 pages + 15 plates |
Table des matières
Abstract | 1 |
Location map | 2 |
Branches of the Park City anticline | 8 |
Hydrogeology of Unconsolidated Deposits | 9 |
Geologic cross section of unconsolidated deposits across northern Parleys Park north of Silver Creek Junction | 14 |
Hydrogeology of Fractured Rock | 16 |
Bedding fractures | 23 |
Schematic geologic cross section showing stratigraphic groundwater compartments in the Thaynes Formation | 29 |
Schematic geologic cross section of the Anchor Shaft | 35 |
Coincidence of lineartrace modes and prominent fracture trends | 39 |
Figure B 1 Explanation of information shown on structure contour and isochore maps | 50 |
Table E 2 Summary of average fracturespacing data | 58 |
Expressions et termes fréquents
alluvium anticline approximate aquifer bedding boundary Boutwell Bromfield Bryant Canyon characteristics City mining district Compartment completed confining bed consists contains continuous covered Crittenden crops cross sections dashed depth determined direction Domain East estimated fault fault zone feet figure flow fold fracture fracture trends geologic Geological Survey gravel ground water ground-water Hill indicate Jarvis joints Keetley Volcanics linear-trace located lower lower contact major Member mesoscopic Mountain northwest Nugget Sandstone outcrop Park City Formation Park City mining Parleys Park permeability persistence plate Pleistocene present range relatively result rock rose diagram sand SGWC shaft shale shown Silver Creek Snyderville basin spacing Spring structural study area subsurface suggest Summit surface Thaynes Formation thickness thrust trace trends Tunnel Twin Creek Limestone types unconsolidated deposits units upper Utah Valley Vertical wall Weber Quartzite Woodside Shale yields zones