Geothermal Reservoir Temperatures Estimated From The Oxygen Isotope Compositions Of Dissolved Sulfate And Water From Hot Springs And Shallow Drillholes

The Oxygen Isotope Compositions Of Dissolved Sulfate And Water From Hot Springs And Shallow Drill Holes Have Been Tested As A Geothermometer In Three Areas Of The Western United States. Limited Analyses Of Spring And Borehole Fluids And Existing Experimental Rate Studies Suggest That Dissolved Sulfate And Water Are Probably In Isotopic Equilibrium In All Reservoirs Of Significant Size With Temperatures Above About 140 Degrees C And That Little Re-Equilibration Occurs During Ascent To The Surface. The Geothermometer Is, However, Affected By Changes In 6180 Of Water Due To Subsurface Boiling And Dilution And By Addition Of Sulfate Of Near Surface Origin. Methods Are Described To Calculate The Effects Of Boiling And Dilution. The Geothermometer Is Applied To Thermal Systems Of Yellowstone Park, Wyoming, Long Valley, California And Raft River, Idaho To Estimate Deep Reservoir Temperatures Of 360, 240, And 142 Degrees C, Respectively. Egi Reference Number Gl03772

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Metadata Source

Additional Info

Field Value
Citation Date 1975-01-01T00:00:00

Harvest Information

Original ID 09ED06C4896F4D32BB699A34CD5E34A0
Index Date 2014-06-17T11:56:31
Original Format ISO-USGIN
Original Version 1.2

Author

Organization William F. Mckenzie And Alfred H. Truesdell
Email sbivens@egi.utah.edu

Geographic Extent

North Bound 49.49
South Bound 31.18
East Bound -108.4
West Bound -129.05