| Title | The Exploration Significance of Low-Angle Faults in the Roosevelt Hot Springs and Cove Fort-Sulphurdale Geothermal Systems, Utah |
|---|---|
| Authors | Nielson, Dennis L.; Moore, J. N. |
| Year | 1979 |
| Conference | Geothermal Resources Council Transactions |
| Keywords | Exploration; Low Angle; Fault; USA; Utah; Roosevelt Hot Springs; Cove Fort; Sulphurdale; Normal Fault; Shallow Dips; Geology; Regional Study; Structural Controls; US DOE; UURI; ESL |
| Abstract | Low angle normal faults of Teritary age have been documented by detailed geologic mapping at both the Roosevelt Hot Springs and Cove Fort Sulphurdale geothermal fields in Utah. At Cove Fort Sulphurdale the low angle structures cap the geothermal system and inhibit the rise of H2S from the thermal fluids as evidenced by the lack of alteration within the zone of low angle faulting. Low angle faults in the Roosevelt Hot Springs KGRA have produced structures in the southern portion of the reservoir which, where intersected by later faults, provide significant permeability controls on the geothermal system. Low angle normal faults are more common in this portion of the Basin and Range than indicated by existing maps, and their presence and importance should be evaluated in exploration programs. |