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Hauraki gold field

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F ig . 1. Location of the Golden Cross deposit and the <b>Hauraki</b> <b>gold</b> <b>field</b>,
...
Published: 01 January 2000
F ig . 1. Location of the Golden Cross deposit and the Hauraki gold field, North Island, New Zealand.
Journal Article
Journal: Economic Geology
Published: 01 October 1909
Economic Geology (1909) 4 (7): 632–645.
Journal Article
Journal: Economic Geology
Published: 01 September 2011
Economic Geology (2011) 106 (6): 915–919.
..., fluid inclusions, and stable isotopes, and synthesized these data for the entire gold field. The papers in this volume represent recent studies of epithermal deposits in the Hauraki goldfield undertaken at the University of Auckland. The studies range from regional to deposit scale. Mauk et al...
FIGURES
Journal Article
Journal: Economic Geology
Published: 01 August 2007
Economic Geology (2007) 102 (5): 785–816.
... gold-field at 7 to 6 Ma, and these contributed most of the Au and Ag that has been recovered from the goldfield. In contrast, rhyolite in the eastern goldfield hosts smaller, less well developed veins plus stockworks that have produced the least amount of Au and Ag. Epithermal mineral deposits...
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Journal Article
Journal: Economic Geology
Published: 01 March 2019
Economic Geology (2019) 114 (2): 243–273.
...Mark P. Simpson; Michael F. Gazley; Alistair G.J. Stuart; Mark A. Pearce; Renee Birchall; Debra Chappell; Anthony B. Christie; Murray R. Stevens Abstract The Karangahake deposit is the third largest gold producer in the Hauraki goldfield, Coromandel, New Zealand. Production was mainly from...
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Journal Article
Journal: Economic Geology
Published: 01 September 2011
Economic Geology (2011) 106 (6): 921–943.
..., reorganization of the Northland and Colville arcs may have occurred just before the onset of Whitianga Group rhyolite volcanism at approximately 10 Ma. The greatest pulse of Au deposition in the Hauraki gold-field occurred between 6.9 and 6.0 Ma and was preceded from ca. 9 to 7 Ma by significant volcanism...
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Journal Article
Journal: Economic Geology
Published: 01 May 2015
Economic Geology (2015) 110 (3): 763–786.
... inclusions in adularia-sericite Au-Ag epithermal veins from the Karangahake, Martha, Favona, and Waitekauri deposits, southern Hauraki goldfield, New Zealand. Quartz veins contain colloform to crustiform bands that alternate with coarse-grained quartz and amethyst. The ore mineralization occurs only...
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Journal Article
Journal: Economic Geology
Published: 01 September 2011
Economic Geology (2011) 106 (6): 945–973.
...Mark P. Simpson; Jeffrey L. Mauk Abstract The Waitekauri area of the Hauraki goldfield, New Zealand, contains several adularia-sericite epithermal Au-Ag deposits and prospects. From west to east, the area contains the Sovereign, Jubilee, Scimitar, Scotia, Teutonic, and Jasper Creek deposits...
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Journal Article
Journal: Economic Geology
Published: 01 August 2007
Economic Geology (2007) 102 (5): 817–839.
... to 1,050 m RL, although high-grade gold mineralization has been intercepted as deep as 650 m RL. Assay intercepts across veins include 30 m at 10.1 g/t Au, 16 m at 27.8 g/t Au, and 6 m at 83.0 g/t Au ( Torckler et al., 2006 ). The Favona deposit is in the southern part of the Hauraki goldfield (Fig. 1...
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Journal Article
Journal: Economic Geology
Published: 01 September 2011
Economic Geology (2011) 106 (6): 1031–1041.
... and lies within the classic adularia-sericite epithermal gold-silver province of the Hauraki goldfield ( Christie et al., 2007 ). Hydrothermal activity in the Waihi-Waitekauri region occurred over a period of 0.8 m.y. ( Mauk et al., 2011 ) pervasively altering an area of approximately 65 km 2 , i.e., ~35...
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Journal Article
Published: 27 February 2015
Geochemistry: Exploration, Environment, Analysis (2015) 15 (2-3): 193–204.
... to regions such as the Hauraki Goldfield, Coromandel Volcanic Zone with only 17 epithermal gold occurrences identified in the region ( Fig. 1 ). These 17 occurrences have been used as training data for this study. Training data are used to calculate the weights for each binary or categorical map to be used...
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Journal Article
Journal: Economic Geology
Published: 01 August 2007
Economic Geology (2007) 102 (5): 873–892.
...Michael J. Begbie; K. Bernhard Spörli; Jeffrey L. Mauk Abstract Golden Cross, located in the Hauraki goldfield of New Zealand, is a classic example of a fault-fracture–hosted epithermal vein system. Gold-silver mineralization was mined in two areas: the open-pit stock-work veins...
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Journal Article
Published: 01 July 2019
Russ. Geol. Geophys. (2019) 60 (7): 735–751.
... that there is a field of petrovskaite and uytenbogaardtite solid solutions and Au–Ag alloys (>670‰, Ag 0.5 Au 0.5 –Au) in the stability field of the pyrrhotite–pyrite parageneses of the Sovetskoe deposit. The gold and silver contents in iron sulfides of the Sovetskoe deposit show that the Au/Ag ratios in pyrrhotites...
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Series: Reviews in Economic Geology
Published: 01 January 2020
DOI: 10.5382/rev.21.03
EISBN: 9781629495798
... for a field-based evaluation of the kinematic evolution of the veins and controlling fault systems. This can be achieved by utilizing observations of (1) fault kinematic indicators, such as oblique cataclastic foliations and Riedel shear fractures, where they are preserved in silicified fault rock on vein...
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Journal Article
Journal: Economic Geology
Published: 01 August 2009
Economic Geology (2009) 104 (5): 623–633.
.... , and Simmons , S.F. , 2007 , Epithermal Au-Ag and related deposits of the Hauraki Gold-field, Coromandel volcanic zone, New Zealand : E conomic G eology , v. 102 , p. 785 – 816 . Clout , J.M.F. , Cleghorn , J.H. , and Eaton , P.C. , 1990 , Geology of the Kalgoorlie gold field...
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Journal Article
Published: 22 August 2019
Geochemistry: Exploration, Environment, Analysis (2020) 20 (3): 299–314.
... ericoides ( Myrtaceae ) complex . PhytoKeys , 40 , https://doi.org/10.3897/phytokeys.40.7973 Downey , J.F. 1935 . Gold Mines of the Hauraki District, New Zealand . Government Printer , Wellington . Dunn , C.E. 1998 . Regional and detailed biogeochemical surveys in the Nechako...
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Journal Article
Journal: Economic Geology
Published: 01 September 2011
Economic Geology (2011) 106 (6): 999–1030.
... protolith. In this paper we use a variation on MacLean’s (1990) approach to assess mass changes in altered volcanic rocks that host gold mineralization in New Zealand. Epithermal Au-Ag deposits in the Hauraki goldfield, New Zealand, are predominantly hosted in calc-alkaline andesite and dacite...
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Journal Article
Published: 11 October 2018
Geochemistry: Exploration, Environment, Analysis (2019) 19 (1): 74–90.
...Pei Ni; Su-Ning Li; Tan Bao; Wen-Yan Zheng; Guo-Guang Wang; Hong-Liang Xiang; Zhe Chi; Jun-Yi Pan; Bao Huang; Jun-Ying Ding; Bao-Zhang Dai Abstract The Dehua gold ore-field, located in the central-eastern Fujian Province, SE China, is an important part of the renowned Dehua-Youxi-Yongtai gold ore...
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Journal Article
Published: 01 May 2014
American Mineralogist (2014) 99 (5-6): 1095–1103.
... researchers ( Symonds et al. 1990 ; Korzhinskii et al. 1996 ; Vergasova et al. 2000 ). Native gold and silver were found in fumaroles’ fields of Russian (Kamchatka) and Mexican volcanoes ( Naboko and Glavatskikh 1996 ; Taran et al. 2000 ). The presence of modern sulfurous fumaroles on the walls of craters...
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Journal Article
Journal: Economic Geology
Published: 01 March 2002
Economic Geology (2002) 97 (2): 269–290.
... than gold and the ratio is about 10 for in situ ore. The most comprehensive early descriptions of the geology of the Waihi field are by Bell and Fraser (1912) and Morgan (1924) . Recent exploration and mining have provided new data and sample material for geological and geochemical studies...
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