Low-temperature geothermal resources









The Rosebud well, Texas, ca. 1981, a flowing artesian hot-water well.


Water, with its high heat capacity, is an excellent source of renewable energy for decentralized heating.  The EarthÕs heat can be used almost anywhere there is water, and can even be used in closed-circuit recirculation systems where water is absent. 



Refereed articles

Macpherson, G. L., 1983, Regional trends in transmissivity and hydraulic conductivity, Lower Cretaceous sands, North-Central Texas:  Ground Water, 21(5): 577-583.


Guidebooks, Open-File Reports

Woodruff, C. M., Jr., G. L. Macpherson, Christine Gever, S. Christopher Caran, and Ahmed G. El Shazly, 1984, Geothermal potential along the Balcones/Ouachita trend, Central Texas--ongoing assessment and selected case studies, Final Report: University of Texas Bureau of Economic Geology, Contract Report, 75 p.


Woodruff, C.M., Jr., Caran, S.C., Gever, C.,, Henry, C.D., Macpherson, G. L., and McBride, M.W., 1981, Geothermal resource assessment for the State of Texas--status of progress, November 1980:  University of Texas Bureau of Economic Geology, final report prepared for the U.S. Department of Energy, Division of Geothermal Energy, under Contract No. DE-AS07-79ID12057, 248 p., 8 appendices.



Macpherson, G. L., and C. M. Woodruff, Jr., 1981, Regional hydrologic trends and their relation to sediment textures of Cretaceous aquifers, North-Central Texas [abst.]:  Geological Society of America, South Central Section Annual Meeting, Abstracts with Programs, 13(5):  241.



Low-Temperature Geothermal Ground Water in the Hosston/Cotton Valley Hydrogeologic Unit, Falls County Area, Texas:  Austin, Texas, The University of Texas, M.A. Thesis, 234 p., 1982.