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Abstract
The U.S Department of Energy s "Geopowering the West" initiative seeks to double the number of states (currently 4) that generate geothermal electric power over the next few years. Some states, like New Mexico and Oregon, have plentiful and conspicuous geothermal manifestations, and are thus likely to further DOE's goal relatively easily. Other states, including Arizona, demonstrate less geothermal potential, but nevertheless have sites worthy of additional investigation. The Arizona site with greatest potential is near Sunset Crater, a basaltic volcano less than 1,000 years old several kilometers northeast of Flagstaff. Several silicic volcanoes nearby are young enough to have still-hot intrusive roots. Moreover, there is geophysical evidence for magma or hot rock in middle to lower crust beneath the area. A high level of interest in this area by the geothermal industry during the 1970s waned because surface thermal indicators, such as high heat flow, hot springs, and fumaroles are absent. The absence of these features is probably the result of a well-documented deep and pervasive regional aquifer, which likely creates a thermal barrier to the rise of hydrothermal activity from depth, Surface based geological and geophysical studies are under way to evaluate further the geothermal potential of the area and to locate a site for a drill hole to explore for a hydrothermal system beneath the ground-water barrier.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Searching for an electrical-grade geothermal resource in Northern Arizona to help geopower the west |
| Series title | Geothermal Resources Council Transactions |
| ISBN | 0-934412-87-1 |
| Volume | 27 |
| Year Published | 2003 |
| Language | English |
| Publisher | Geothermal Resources Council |
| Publisher location | Davis, California |
| Description | 6 p. |
| First page | 629 |
| Last page | 634 |
| Conference Title | Geothermal Resources Counsil |
| Conference Location | Morelia, Mexico |
| Conference Date | October, 12-15, 2003 |
| Country | United States |
| State | California, Nevada |
| Google Analytic Metrics | Metrics page |