Description:
This open-file report describes the carbon-sequestration potential at the site of the 1 Alpine-Federal geothermal test drill hole, which is located south of Springerville in central eastern Arizona near the New Mexico border. A previous report, Arizona Geological Survey (AZGS) Open-File Report OFR 94-1, version 2.0, describes the subsurface geology encountered in the 1 Alpine-Federal well in much more detail than this new report.
The 1 Alpine-Federal geothermal test, at an elevation of 8,556 ft in eastern Arizona, was drilled by the Arizona Department of Commerce and U.S. Department of Energy to obtain information about the hot-dry-rock potential of Precambrian rocks in the Alpine-Nutrioso area, a region of extensive Quaternary basaltic volcanism in southern Apache County. The hole reached total depth of 4,505 ft (1373 m) in August 1993. Temperature measurements were taken through October 1993 when final temperature, gamma ray, and neutron logs were run. Details on the temperature gradients, geothermal potential, and geology encountered in the 1 Alpine-Federal are presented in AZGS Contributed Reports CR-94-D, CR-94-E, and CR-94-F (Witcher, J.C., 1994; Witcher, J.C., et. al. 1994; and Witcher, J.C., Hahman, W.R., and Swanberg, C.A., 1994a), and in New Mexico Geological Society Guidebook, 45th Field Conference (Witcher, J.C., Hahman, W.R., and Swanberg, C.A., 1994b).
(6 pages)