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Wairakei geothermal field

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Journal Article
Published: 01 June 2013
Clays and Clay Minerals (2013) 61 (3): 204–217.
... of the Wairakei Geothermal Field, New Zealand, were analyzed to determine the mineralogical, morphological, and isotopic characteristics of hydrothermal clays in these samples. Mixed-layer illite-dioctahedral smectite (I-S) and R0 chlorite-trioctahedral smectite are the main clay minerals, with I-S clays varying...
FIGURES | View All (9)
Journal Article
Published: 01 December 1991
Clays and Clay Minerals (1991) 39 (6): 614–621.
...Colin Charles Harvey; Patrick R. L. Browne Abstract Mixed-layer clays of variable composition and structure occur in core samples from two drillholes (WK207 and WK210) drilled into the Te Mihi sector of the Wairakei geothermal field. These were identified by X-ray diffraction analysis of glycolated...
Journal Article
Journal: Geophysics
Published: 01 August 1986
Geophysics (1986) 51 (8): 1647–1660.
...Richard G. Allis; Trevor M. Hunt Abstract Gravity changes (corrected for subsidence) of up to −1 000 (±300) μGal have occurred in the 1 km 2 area of the production bore field at Wairakei, and smaller decreases extend over a 50 km 2 surrounding area. The largest part of these decreases occurred...
Journal Article
Journal: GSA Bulletin
Published: 01 February 1970
GSA Bulletin (1970) 81 (2): 529–536.
...TREVOR M HUNT Abstract Measurements of the value of gravity at 50 bench marks at Wairakei Geothermal Field, New Zealand, show that differences of up to 0.5 mgal have occurred between 1961 and 1967 and up to 0.1 mgal between 1967and 1968. These differences, corrected for known changes in elevation...
Image
Map of the <span class="search-highlight">Wairakei</span> <span class="search-highlight">geothermal</span> <span class="search-highlight">field</span> showing selected wells (circles) and d...
Published: 01 June 2013
Figure 1 Map of the Wairakei geothermal field showing selected wells (circles) and deviation path of WK244, power-plant locations (rectangles), dominant faults in the Te Mihi area (gray lines), the Waikato River, and the resistivity boundary of the geothermal system (cross-hatched) (modified
Journal Article
Journal: Geophysics
Published: 01 October 1981
Geophysics (1981) 46 (10): 1467–1468.
... northwest of the North Island (Northland) is associated with a region of Quaternary basaltic volcanism. It is not a part of the much more extensive Taupo volcanic zone in the central North Island, site of the well-known Wairakei geothermal field, among others. Although surface thermal activity at Ngawha...
Image
(a) Map of the North Island of New Zealand, with the location of the Taupō ...
Published: 08 April 2021
Figure 1. (a) Map of the North Island of New Zealand, with the location of the Taupō Volcanic Zone. (b) The red square shows the Wairākei geothermal field location and a surface resistivity map (approximately 250 m depth) derived from previous DC studies ( Risk, 1984 ). In the resistivity map
Image
SEM images of hydrothermal clays from Well WK244 in the Te Mihi area, Waira...
Published: 01 June 2013
Figure 5 SEM images of hydrothermal clays from Well WK244 in the Te Mihi area, Wairakei geothermal field. Mineralogical identifications were made using morphological characteristics, EDS, and μXRD. (a) ‘Cornflake’-textured dioctahedral smectite from the Oruanui Formation, 145 mRF. Submicron
Journal Article
Journal: Geophysics
Published: 08 April 2021
Geophysics (2021) 86 (3): E171–E183.
...Figure 1. (a) Map of the North Island of New Zealand, with the location of the Taupō Volcanic Zone. (b) The red square shows the Wairākei geothermal field location and a surface resistivity map (approximately 250 m depth) derived from previous DC studies ( Risk, 1984 ). In the resistivity map...
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Journal Article
Journal: Geophysics
Published: 20 November 2008
Geophysics (2008) 73 (6): WA1–WA2.
... sequestration and reduction of natural hazards. It is our hope that the papers in this special section will stimulate further application and development of 4D gravity methods. The history of 4D gravity surveying extends back at least four decades, with measurements in the Wairakei geothermal field...
Journal Article
Journal: AAPG Bulletin
Published: 01 March 1967
AAPG Bulletin (1967) 51 (3): 477–478.
... in California is the first and only geothermal field generating electricity in the United States. Pacific Gas and Electric installed the first 12,000-kwh. turbine-generator in 1960, a 14,000-kwh. unit in 1963, and in 1966 installed a 27,500-kwh. unit for a total of 53,500-kwh. capacity. A fourth unit is planned...
Series: AAPG Memoir
Published: 01 January 1976
EISBN: 9781629812113
... in 1950 during a period of power shortage. Since then, the use of geothermal energy has been developed at Wairakei and Kawerau, and investigations have been extended into other fields. The initial aim at Wairakei was to obtain steam at high pressure, but drilling soon showed that the young volcanic...
Journal Article
Journal: Geology
Published: 01 January 2017
Geology (2017) 45 (1): 43–46.
... geochemistry and related dating methods. Vein adularia previously showed promise as a geochronologic target to elucidate the thermal histories of youthful geothermal systems ( Hulen et al., 1997 ). Drill cores recently recovered from the Tauhara sector of the joint Wairakei and Tauhara geothermal fields...
FIGURES
Series: AAPG Memoir
Published: 01 January 1976
EISBN: 9781629812113
... Abstract The fact that major geothermal fields are commonly located above zones of major crustal structures suggests that thermal resources are large, but heat extraction depends on hydrologic conditions which constitute the limiting factor. The heat is believed to originate by conduction...
Journal Article
Journal: AAPG Bulletin
Published: 01 July 1974
AAPG Bulletin (1974) 58 (7): 1432.
... for coal, oil, or nuclear fuels, it will result in a net reduction of such adverse environmental impacts. Geothermal developments appear to have a major impact when a field such as The Geysers or Wairakei is compared to an electric-power-production facility such as a fossil-fuel or nuclear-power plant...
Journal Article
Published: 01 April 2015
Geochemical Perspectives (2015) 4 (1): 45–54.
... in New Zealand. Among the major contributors were Jim Ellis , Werner Giggenbach , Tony Mahon and Terry Seward whose research was focused first on the many geothermal fields of New Zealand ( e.g. , Wairakei, and Kawerau see Fig. 5.4 and 5.8 ) but also covered much of the earth’s other geothermal...
FIGURES | View All (9)
Journal Article
Journal: AAPG Bulletin
Published: 01 July 1974
AAPG Bulletin (1974) 58 (7): 1439–1440.
...J. Healy; R. James Abstract Generation of electric power in New Zealand from geothermal steam at the present time amounts to 148 MW at the Electricity Department’s station at Wairakei, and < 10 MW at the Tasman Pulp and Paper Company’s mill at Kawerau. Exploration commenced in 1950...
Series: Reviews in Economic Geology
Published: 01 January 1984
DOI: 10.5382/Rev.01.04
EISBN: 9781629490083
... Abstract Gas concentrations in fluids encountered during drilling of geothermal fields range from 0.05 wt% (Wairakei, Ahuachapan) up to about 1 wt% (Ngawha, Broadlands). We discovered in Chapter 2 that carbon dioxide is the dominant...
Series: GSA Reviews in Engineering Geology
Published: 01 January 1984
DOI: 10.1130/REG6-p35
EISBN: 9780813758060
... geothermal subsidence, the modeling efforts have been seriously limited by a lack of relevant field data needed to sufficiently characterize the complex field system. ...
Image
Sketch map, showing the locations of <span class="search-highlight">Wairakei</span> and Orakei Korako <span class="search-highlight">geothermal</span> ...
Published: 01 June 2003
F ig . 1. Sketch map, showing the locations of Wairakei and Orakei Korako geothermal fields within the Taupo Volcanic Zone. Insert: North Island, New Zealand.