Identified Delineated-Area Low-Temperature (<90°C) Geothermal Systems

Data includes minimum, maximum, and most likely values for temperature, area, and thickness of the Identified delineated-area low-temperature (<90°C) geothermal systems (148 of 190 systems have coordinate information and presented in GT Prospector). The three values of each parameter were used to form a triangular density distribution for calculation of the energies for each system. The geologic province and mean transmissivity is also given for each system to provide a key to the summarized values for Identified delineated-area systems. The data is obtained from the United States Geological Survey (U.S.G.S.) Open-File Report 83-250 (Table-3) titled Low-Temperature (Less Than 90°C) Geothermal Systems in The United States; Reference Data for U.S.G.S. Circular 892. The report was originally published in 1982 and updated in 2015 (report forthcoming from USGS). For more information and to access the reports visit links below.

http://pubs.usgs.gov/circ/1983/0892/report.pdf http://www.osti.gov/scitech/servlets/purl/5456555/