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Investigation of geothermal potential in the Waianae caldera area, Western Oahu, Hawaii

Item Summary Cox, Malcolm E. Sinton, John M. Thomas, Donald M. Mattice, Mark D. Kauahikaua, James P. Helstern, Donald M. Fan, Pow-Foong 2014-11-17T23:18:16Z 2014-11-17T23:33:04Z 2014-11-17T23:18:16Z 2014-11-17T23:33:04Z 1979-09
dc.identifier.citation Cox ME, Sinton JM, Thomas DM, Mattice MD, Kauahikaua JP, Helstern DM, Fan PF. 1979. Investigation of geothermal potential in the Waianae caldera area, Western Oahu, Hawaii. Honolulu (HI): Hawaii Institute of Geophysics, University of Hawaii at Manoa.
dc.identifier.other HIG-79-8
dc.identifier.other OSTI 5197537
dc.description.abstract "Studies of Lualualei Valley, Oahu have been conducted to determine whether a thermal anomaly exists in the area and, if so, to identify sites at which subsurface techniques should be utilized to characterize the resource. Geologic mapping identifies several caldera and rift zone structures in the Valley and provides a tentative outline of their boundaries. Clay mineralogy studies indicate that minor geothermal alteration of near-surface rocks has occurred at some period in the history of the area. Schlumberger resistivity soundings indicate the presence of a low resistivity layer beneath the valley floor, which has been tentatively attributed to warm water-saturated basalt. Soil and groundwater chemistry studies outline several geochemical anomalies around the perimeter and within the inferred caldera boundaries. The observed anomalies strongly suggest a subsurface heat source. Recommendations for further exploratory work to confirm the presence of a geothermal reservoir include more intensive ·surveys in a few selected areas of the valley as well as the drilling of at least three shallow (1000-m) holes for subsurface geochemical, geological and geophysical studies."
dc.description.abstract "Prepared for Western States Cooperative Direct Heat Resource Assessment."
dc.description.abstract Contents: Geology of Oahu and Waianae Volcano / Malcolm E. Cox and Donald M. Thomas -- Detailed geological mapping / John M. Sinton -- Mineral assemblages of basalt and soil samples / Donald M. Helstern and Pow-foong Fan -- Summary of regional geophysics / Malcolm E. Cox -- Geoelectric surveys / Mark D. Mattice and James P. Kauahikaua -- Geochemical surveys / Malcolm E. Cox and Donald M. Thomas
dc.description.abstract Bibliography: pages 73-76.
dc.description.sponsorship U.S. Department of Energy grant no. DOE/ID/01713-5
dc.format.extent 84 pages
dc.language.iso en-US
dc.publisher U.S. Geological Survey
dc.relation.ispartofseries Assessment of geothermal resources in Hawaii ; no. 2
dc.relation.ispartofseries HIG (Series) ; 79-8
dc.subject geothermal resource assessments
dc.subject geothermal anomaly
dc.subject geologic mapping
dc.subject geoelectric surveys
dc.subject geochemical surveys
dc.subject geophysics
dc.subject Lualualei Valley
dc.subject Waianae
dc.subject Oahu
dc.subject Hawaii
dc.subject Assessment of geothermal resources in Hawaii
dc.subject HIG (Series)
dc.subject.lcsh Geothermal resources--Hawaii
dc.subject.lcsh Geothermal resources--Hawaii--Maps
dc.subject.lcsh Geothermal resources--Hawaii--Waianae
dc.title Investigation of geothermal potential in the Waianae caldera area, Western Oahu, Hawaii
dc.type Report
dc.type.dcmi Text
local.identifier.callnumber QC851 .H35 no.79-8
local.identifier.voyagerid 1934782
Appears in Collections: The Geothermal Collection

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