A Hydrogeochemical Analysis of Geothermal Resources in the State of Hawaii

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The University of Hawaii at Manoa conducted a Play Fairway Analysis of the state of geothermal potential for the islands. Phase I included the aggregation of all existing geologic, geophysical and geochemical data available. A probability model incorporating heat, fluid, and permeability was then created to assess the probability of viable geothermal development. Phase II is the focus of this paper, with new data collection as the goal for this funding period. The Play Fairway Project collected new geothermal groundwater data from 60 wells and 1 spring across the State of Hawaii. Geochemical geothermal indicators used previously in Hawaii, and around the world, were investigated for the newly acquired data in Phase II. These indicators include groundwater temperature, chloride:magnesium ratios, sulfate:chloride ratios, and silica concentrations. All chemical analyses were collected by ... the Play Fairway team and analyzed at various labs at the University of Hawaii at Manoa. Of the ten target areas identified for Phase II, two of the sites provide encouraging groundwater geochemical results for potential geothermal resources. These sites include the Southwest Rift Zone of Haleakala, Maui, and the Palawai Basin, Lanai. Multiple geothermal indicators have been observed in these areas and, therefore, provide encouragement to further explore for subsurface heat. Further investigation is recommended in these target areas through geological, geophysical, and geochemical exploration.

The Hawaii Play Fairway project was funded by the U.S. Department of Energy Geothermal Technologies Office, and the Hawaii Groundwater and Geothermal Resources Center (Hawaii Institute of Geophysics and Planetology, University of Hawaii at Manoa) executed the project. For more information, go to HGGRC's website that is linked in the resources.

Citation Formats

University of Hawaii. (2018). A Hydrogeochemical Analysis of Geothermal Resources in the State of Hawaii [data set]. Retrieved from https://gdr.openei.org/submissions/1417.
Export Citation to RIS
Tachera, Diamond. A Hydrogeochemical Analysis of Geothermal Resources in the State of Hawaii. United States: N.p., 01 May, 2018. Web. https://gdr.openei.org/submissions/1417.
Tachera, Diamond. A Hydrogeochemical Analysis of Geothermal Resources in the State of Hawaii. United States. https://gdr.openei.org/submissions/1417
Tachera, Diamond. 2018. "A Hydrogeochemical Analysis of Geothermal Resources in the State of Hawaii". United States. https://gdr.openei.org/submissions/1417.
@div{oedi_1417, title = {A Hydrogeochemical Analysis of Geothermal Resources in the State of Hawaii}, author = {Tachera, Diamond.}, abstractNote = {The University of Hawaii at Manoa conducted a Play Fairway Analysis of the state of geothermal potential for the islands. Phase I included the aggregation of all existing geologic, geophysical and geochemical data available. A probability model incorporating heat, fluid, and permeability was then created to assess the probability of viable geothermal development. Phase II is the focus of this paper, with new data collection as the goal for this funding period. The Play Fairway Project collected new geothermal groundwater data from 60 wells and 1 spring across the State of Hawaii. Geochemical geothermal indicators used previously in Hawaii, and around the world, were investigated for the newly acquired data in Phase II. These indicators include groundwater temperature, chloride:magnesium ratios, sulfate:chloride ratios, and silica concentrations. All chemical analyses were collected by ... the Play Fairway team and analyzed at various labs at the University of Hawaii at Manoa. Of the ten target areas identified for Phase II, two of the sites provide encouraging groundwater geochemical results for potential geothermal resources. These sites include the Southwest Rift Zone of Haleakala, Maui, and the Palawai Basin, Lanai. Multiple geothermal indicators have been observed in these areas and, therefore, provide encouragement to further explore for subsurface heat. Further investigation is recommended in these target areas through geological, geophysical, and geochemical exploration.

The Hawaii Play Fairway project was funded by the U.S. Department of Energy Geothermal Technologies Office, and the Hawaii Groundwater and Geothermal Resources Center (Hawaii Institute of Geophysics and Planetology, University of Hawaii at Manoa) executed the project. For more information, go to HGGRC's website that is linked in the resources. }, doi = {}, url = {https://gdr.openei.org/submissions/1417}, journal = {}, number = , volume = , place = {United States}, year = {2018}, month = {05}}

Details

Data from May 1, 2018

Last updated Sep 28, 2022

Submitted Sep 6, 2022

Organization

University of Hawaii

Contact

Nicole Lautze

808.956.3499

Authors

Diamond Tachera

University of Hawaii

DOE Project Details

Project Name Comprehensive analysis of Hawaii's geothermal potential through Play Fairway integration of geophysical, geochemical, and geological data

Project Lead Holly Thomas

Project Number EE0006729

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