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As with hydrothermal systems, the western U.S has higher HDR potential overall than the eastern U.S. because geothermal gradients on average are higher in the west. Nevertheless, some attractive exploration targets occur in the eastern U.S. The most favorable target in the eastern U.S. (defined here to include the Great Plains province) is one in which the heat flow from the basement rocks is higher than average, either due to heat generation from highly radioactive rocks or to a plume of hot water driven upwards from greater depths by convection, and where such basement rocks are blanketed by one or more kilometers of sedimentary material having a low thermal conductivity.
Additional Publication Details
Constraints in the hot-dry-rock resources of the united states
Publ by Geothermal Resources Council
Davis, CA, United States
Number of Pages:
Proceedings of the 1993 Annual Meeting on Utilities and Geothermal: An Emerging Partnership