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Te Kopia Field

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Journal Article
Published: 01 June 1999
Mineralogical Magazine (1999) 63 (3): 413–419.
...R. Martin; K. A. Rodgers; P. R. L. Browne Abstract Alunogen and meta-alunogen are the dominant phases present in transient sulphate efflorescences that are the latest products of the alteration of ignimbrite country rocks in the long-lived Te Kopia geothermal field. Meta-alunogen pseudomorphs...
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Mineralogy of siliceous sinter samples from Orakei Korako and <b>Te</b> <b>Kopia</b> geot...
Published: 01 July 2004
Table 2 Mineralogy of siliceous sinter samples from Orakei Korako and Te Kopia geothermal fields.
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(a). Structural setting of <b>Te</b> <b>Kopia</b> and Orakeikorako geothermal systems, sh...
Published: 01 May 2012
the upper ramp (after Crider and Pollard, 1998 ), and strike-parallel extension in the footwall to the Paeroa Fault ( Ferrill and Morris, 2001 ). Locations of Te Kopia and Orakeikorako geothermal fields (light gray) coincide with locally enhanced fault and extension fracture density related to growth
Series: AAPG Memoir, AAPG Memoir
Published: 01 January 1976
EISBN: 9781629812113
.... Other fields prospected by drilling are Waiotapu, Reporoa, Te Kopia, Orakeikorako, Tauhara, Rotokawa, and Ngawha. With the exception of Ngawha, which is located in the Northland area, all the fields lie within the Taupo volcanic zone in the central North Island (see Healy, this volume, Fig. 2). ...
Journal Article
Journal: Clay Minerals
Published: 01 June 2002
Clay Minerals (2002) 37 (2): 299–322.
...K. A. RODGERS; K. L. COOK; P. R. L. BROWNE; K. A. CAMPBELL Abstract Opaline silica residue accumulates on the surface and in the near surface of the Te Kopia, Tikitere and Rotokawa geothermal fields, where rhyolitic tuffs are attacked by steam condensate, made acid (pH 2–3) by sulphuric acid...
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Journal Article
Journal: AAPG Bulletin
Published: 01 July 1974
AAPG Bulletin (1974) 58 (7): 1439–1440.
..., and in association with geologic, geophysical, and geochemical surveys, wells were drilled at Waiotapu, Reporoa, Broadlands, Tauhara, Orakei Korako, and Te Kopia in the central volcanic region of the North Island, and at Ngawha in Northland. At Broadlands the production potential of wells already drilled is about...
Journal Article
Published: 01 July 2004
Journal of Sedimentary Research (2004) 74 (4): 561–579.
...Table 2 Mineralogy of siliceous sinter samples from Orakei Korako and Te Kopia geothermal fields. ...
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Journal Article
Published: 07 November 2003
Canadian Journal of Earth Sciences (2003) 40 (11): 1679–1696.
... outflow channels and pools, which record distinctive macrotextures and microtextures along a thermal gradient. Sinters from four geothermal fields, Orakei Korako, northern Waiotapu, Te Kopia, and Umukuri, within the Taupo Volcanic Zone, New Zealand, were sampled from two common microbe-rich microfacies...
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Journal Article
Journal: Economic Geology
Published: 01 May 2012
Economic Geology (2012) 107 (3): 427–457.
... the upper ramp (after Crider and Pollard, 1998 ), and strike-parallel extension in the footwall to the Paeroa Fault ( Ferrill and Morris, 2001 ). Locations of Te Kopia and Orakeikorako geothermal fields (light gray) coincide with locally enhanced fault and extension fracture density related to growth...
FIGURES | View All (14)
Journal Article
Published: 18 July 2019
Geological Magazine (2019) 156 (9): 1631–1638.
... textures are indeed produced by the interactions of microorganisms with silica precipitation at high temperatures. In order to further strengthen this observation, a ~5150-year-old sample of geyserite (B. Murphy, unpub. MSc thesis, Univ. Auckland, 2013) from the Te Kopia sinter area in the Taupo Volcanic...
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Journal Article
Journal: GSA Bulletin
Published: 01 September 2014
GSA Bulletin (2014) 126 (9-10): 1131–1144.
... a distinction based on field evidence and new age determinations, and we propose a different source for these ignimbrites. The Paeroa Subgroup consists of three ignimbrites: (1) Te Kopia, (2) Te Weta, and (3) Paeroa, in ascending stratigraphic order ( Martin, 1961 ; Keall, 1988 ). These ignimbrites...
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Journal Article
Published: 01 February 2000
Mineralogical Magazine (2000) 64 (1): 125–142.
... the ascending steam condensate, made acid by entrained and then oxidized H 2 S, and descending meteoric water. A second paragenesis that consists of efflorescent Al-rich hydrous sulfates, such as alunogen and tamarugite has been recognized in the Te Kopia field, also in the TVZ, by Mackenzie et al. (1995...
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<b>Field</b> occurrences, outcrop characteristics, and macroscale examples of low-...
Published: 01 July 2004
Calothrix microbial mats in < 35 °C outflow. B) Micro-terracettes on Rainbow Terrace at Orakei Korako, covered in dark brown microbial mats in shallow, < 35 °C water on a distal sinter-apron. C) ∼ 3,500 year old sinter buttress at Te Kopia with preserved, sloping terrace margin. D) Weathered
Journal Article
Published: 23 June 2017
Geological Magazine (2018) 155 (6): 1394–1412.
... deposit mostly replaced by silica (Schalamuk et al. 1999 ), which is a type of pseudosinter (cf. Guido & Campbell, 2012 ), in its higher topographic levels. Neither the northern nor southern (Macanudo Sur) areas of this palaeo-geothermal field have been described in detail. This Upper Jurassic hot...
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Journal Article
Published: 01 November 2007
American Mineralogist (2007) 92 (11-12): 1800–1813.
..., G. and Browne, P.R.L. ( 1994 ) Surface hydrothermal alteration and evolution of the Te Kopia thermal area, New Zealand. Geothermics , 23 , 5/6, 645 –658. Bish, D.L. and Reynolds, Jr., R.C. ( 1989 ) Sample preparation for X-ray diffraction. In D.L. Bish and J.E. Post, Eds., Modern Powder...
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Journal Article
Journal: Economic Geology
Published: 01 March 2017
Economic Geology (2017) 112 (2): 319–346.
... leached base cations, resulting in the loss of elements typically considered immobile (Al, Ti, Y, Zr, Nb, as well as rare earth elements) to form cation-depleted minerals such as pyrophyllite, andalusite, and topaz. The strongest enrichments in Au (0.6 g/t), Ag (4.6 g/t), Te, As, Sb, and Bi coincide...
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Location maps showing (A, B) Taupo Volcanic Zone (TVZ), and the location of...
Published: 01 July 2004
Figure 1 Location maps showing (A, B) Taupo Volcanic Zone (TVZ), and the location of field sites and sampling locations at (C) Te Kopia and (D) Orakei Korako.
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Microfacies type, silica mineral phase, sample description, friability inde...
Published: 01 July 2004
Table 1 Microfacies type, silica mineral phase, sample description, friability index of matrix, and preservation state of representative siliceous sinter samples from Orakei Korako and Te Kopia geothermal fields, Taupo Volcanic Zone, New Zealand.
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Sketch maps of the three geothermal areas from which samples were collected...
Published: 01 June 2002
F ig . 1. Sketch maps of the three geothermal areas from which samples were collected for present study. Inset: position of each thermal field in the Taupo Volcanic Zone (TVZ). (a) Te Kopia, showing “quadrat 1” of Martin et al. (2000a) ; (b) Tikitere, modified after Grange (1937 , p. 88); (c
Journal Article
Published: 14 January 2019
Mineralogical Magazine (2019) 83 (3): 381–392.
... and significance of sulphate-rich, aluminous efflorescences from the Te Kopia geothermal field, Taupo Volcanic Zone, New Zealand . Mineralogical Magazine , 63 , 413 – 413 . Masalehdani M.N.-N. , Mees F. , Dubois M. , Coquinot Y. , Potdevin J.-L. , Fialin M. and Blanc...
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