| Title | A Geochemical Model of the Calistoga Geothermal Resource Napa Valley, California |
|---|---|
| Authors | Murray, Kent S.; Jonas, Mark L. |
| Year | 1986 |
| Conference | Geothermal Resources Council Transactions |
| Keywords | Exploration; General; USA; California; Napa Valley; Modeling; Hydrothermal; Moderate Temperatures; Geothermal Waters; Sodium Chloride; Mercury; Boron; Shear Zones; Temperature Gradient; Central Fracture System; Clear Lake Volcanic Field; Holocene Activity |
| Abstract | The Calistoga Geothermal Field consists of a shallow, moderate temperature resource located at the head of the Napa Valley in northern California. Like many near surface low to moderate temperature (<150°C) hydrothermal resources being developed in the United States, the Calistoga Field, is attributed to fault charged, hydrothermal circulation. The Calistoga aquifer is recharged by thermal water upwelling along a central linear fracture system trending parallel to the axis of the Valley. Modeling of the field is accomplished by mapping the concentration of specific chemical tracers which are characteristic of the Calistoga geothermal fluid. Because of the shallow depth and moderate temperature of the field, the Calistoga area is very attractive for the development of direct use project. |