Hawaii Play Fairway Analysis: Lanai Resistivity and Density 3D Inversion Models
To prepare for its third phase, the Hawaii Play Fairway project conducted groundwater sampling and analyses in ten locations in the Hawaiian islands, magnetotelluric (MT) and gravity surveys, as well as calculations of 3D subsurface stress due to the weight of the rock underlying the topography of the volcano. The subsurface stresses were used to evaluate the potential for fracture-induced permeability. Inversions of the MT and gravity data produce 3D models of resistivity and density, respectively, on Lanai, across Haleakala's SW rift (Maui), and surrounding Mauna Kea (Hawaii Island). The project developed and applied a new method for incorporating depth information about resistivity, density, and potential for fracture-induced permeability into the statistical method for computing resource probability in these three focus areas. The project then incorporated the new groundwater results with the new geophysical results and the calculations of potential for fracture-induced permeability to produce updated maps of resource probability and confidence. These results were used to identify target sites for exploratory drilling.
Spreadsheet information: Each sheet contains data for a particular depth in kilometers. Positive depths are above sea level, and negative below.
For more information, go to the Hawaii Groundwater and Geothermal Resources Center website linked in the resources.
Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | public |
| bureauCode |
[
"019:20"
]
|
| contactPoint |
{
"fn": "Nicole Lautze",
"@type": "vcard:Contact",
"hasEmail": "mailto:lautze@hawaii.edu"
}
|
| dataQuality |
true
|
| description | To prepare for its third phase, the Hawaii Play Fairway project conducted groundwater sampling and analyses in ten locations in the Hawaiian islands, magnetotelluric (MT) and gravity surveys, as well as calculations of 3D subsurface stress due to the weight of the rock underlying the topography of the volcano. The subsurface stresses were used to evaluate the potential for fracture-induced permeability. Inversions of the MT and gravity data produce 3D models of resistivity and density, respectively, on Lanai, across Haleakala's SW rift (Maui), and surrounding Mauna Kea (Hawaii Island). The project developed and applied a new method for incorporating depth information about resistivity, density, and potential for fracture-induced permeability into the statistical method for computing resource probability in these three focus areas. The project then incorporated the new groundwater results with the new geophysical results and the calculations of potential for fracture-induced permeability to produce updated maps of resource probability and confidence. These results were used to identify target sites for exploratory drilling. Spreadsheet information: Each sheet contains data for a particular depth in kilometers. Positive depths are above sea level, and negative below. For more information, go to the Hawaii Groundwater and Geothermal Resources Center website linked in the resources. |
| distribution |
[
{
"@type": "dcat:Distribution",
"title": "MT Lanai 3D Inversion Data.xlsx",
"format": "xlsx",
"accessURL": "https://gdr.openei.org/files/1388/MT_Lanai3D_inversion-Labelled.xlsx",
"mediaType": "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet",
"description": "The "MT Lanai3D Inversion" contains the data for the resistivity model for Lanai island that was found using the magnetotelluric (MT) technique. Some of the northings and eastings for shallow depths have no resistivity value because their points were in the air."
},
{
"@type": "dcat:Distribution",
"title": "Average Gravity Density Test Data.xlsx",
"format": "xlsx",
"accessURL": "https://gdr.openei.org/files/1388/testrhoavgdata.xlsx",
"mediaType": "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet",
"description": "In the testrhogravdata.xlsx file, the column headers include northing, easting, and density. Some of the northings and eastings for shallow depths have no density value because their points were in the air. Hence, only northings and eastings with elevations of more than 0.5 km have density values. In the deeper density slices, including those below sea level, the easting and northings have associated density values."
},
{
"@type": "dcat:Distribution",
"title": "Hawaii Groundwater and Geothermal Resources Center",
"format": "HTML",
"accessURL": "https://www.higp.hawaii.edu/hggrc/",
"mediaType": "text/html",
"description": "Includes more information on exploratory drilling in Hawaii, including preliminary core photos and a log of drilling activity.
"
}
]
|
| DOI | 10.15121/1874040 |
| identifier | https://data.openei.org/submissions/7499 |
| issued | 2020-06-01T06:00:00Z |
| keyword |
[
"EGS",
"Haleakala",
"Hawaii",
"Lanai",
"MT",
"Maui",
"Mauna Kea",
"data",
"density",
"energy",
"enhanced geothermal system",
"exploratory drilling",
"fracture induced permeability",
"geothermal",
"gravity",
"ma",
"magnetotelluric",
"potential",
"resistivity",
"resource",
"resource probability",
"stress",
"subsurface",
"survey",
"test",
"volcano"
]
|
| landingPage | https://gdr.openei.org/submissions/1388 |
| license | https://creativecommons.org/licenses/by/4.0/ |
| modified | 2024-05-21T22:34:26Z |
| programCode |
[
"019:006"
]
|
| projectLead | Holly Thomas |
| projectNumber | EE0006729 |
| projectTitle | Comprehensive analysis of Hawaii's geothermal potential through Play Fairway integration of geophysical, geochemical, and geological data |
| publisher |
{
"name": "University of Hawaii",
"@type": "org:Organization"
}
|
| spatial |
"{"type":"Polygon","coordinates":[[[-159.92886962891,18.759669925054503],[-154.57203369141,18.759669925054503],[-154.57203369141,22.382737677317607],[-159.92886962891,22.382737677317607],[-159.92886962891,18.759669925054503]]]}"
|
| title | Hawaii Play Fairway Analysis: Lanai Resistivity and Density 3D Inversion Models |
