Matching Items (2)
- All Subjects: Geology
- All Subjects: Electric power production
- Creators: Brown, David Earl
- Creators: Fred Harvey
This report details geothermal resource exploration done for Arizona Public Service and the U.S. Department of Energy in 2005 to evaluate the geothermal resources of the Clifton Hot Springs area in Greenlee County, eastern Arizona for electric power production. The intent of the evaluation was to determine the local geologic controls of the geothermal system and, using publicly available data and original mapping performed for this project, to recommend locations for Controlled Source Audiomagnetotelluric (CSAMT) cross sections. The results of the geophysics were then combined with the geologic mapping to site three gradient holes, two of which were drilled to depths of 635 feet and 1,000 feet, respectively.
Booklet describing a geological survey of the Grand Canyon. Four editions: 1917, 1929, 1936, 1950.