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Title: Play Fairway analysis of geothermal resources across the State of Hawai‘i: 4. Updates with new groundwater chemistry, subsurface stress analysis, and focused geophysical surveys

Journal Article · · Geothermics
 [1];  [1];  [1];  [1];  [1];  [2];  [1];  [3];  [1];  [4];  [5]
  1. Univ. of Hawaii, Honolulu, HI (United States)
  2. Univ. of Nevada, Reno, NV (United States)
  3. Czech Academy of Science, Prague (Czech Republic); Univ. of Canterbury, Christchurch (New Zealand)
  4. Univ. of Utah, Salt Lake City, UT (United States)
  5. Colorado School of Mines, Golden, CO (United States)
+ Show Author Affiliations

This paper is the fourth in a series on a play fairway analysis of geothermal resources across the State of Hawai‘i. Here we describe recent exploration activities that include groundwater sampling in ten locations statewide, as well as geophysical surveys on Lana‘i, across the SW rift of Haleakala Volcano (Maui), and surrounding Mauna Kea Volcano (Hawai‘i Island). We derive a first-order method for computing topographic stress using Green’s functions, finding that topography can induce appreciable crustal stress. We develop a new method for incorporating depth information about resistivity, density, and topographic stresses into our previously published equations to calculate resource probability and confidence. We incorporate newly collected and modeled data into our calculations to update statewide maps of probability and confidence. Lana‘i Island and southeast Mauna Kea are identified as the top targets for exploratory drilling. The east rift of Haleakala Volcano, the southern-most region of Mauna Loa’s SW rift (Hawai‘i Island), and central Kauai are identified as targets for geophysical surveying.

Research Organization:
Univ. of Hawaii, Honolulu, HI (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Geothermal Technologies Office
Grant/Contract Number:
EE0006729
OSTI ID:
1799234
Alternate ID(s):
OSTI ID: 1897813; OSTI ID: 1897927; OSTI ID: 2325047
Journal Information:
Geothermics, Vol. 86; ISSN 0375-6505
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

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15 GEOTHERMAL ENERGY
Hawai‘i
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volcano
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geophysics
Hawai‘i
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