 | Christie, A. B., Simpson, M. P., Brathwaite, R. L., Mauk, J. L., Simmons, S. F. (2007) Epithermal Au-Ag and Related Deposits of the Hauraki Goldfield, Coromandel Volcanic Zone, New Zealand. Economic Geology, 102 (5) 785-816 doi:10.2113/gsecongeo.102.5.785 | Journal (article/letter/editorial) | | Related Deposits of the Hauraki Goldfield, Coromandel Volcanic Zone, New Zealand ANTHONY B. CHRISTIE,†...GNS Science, P.O. Box 30-368, Lower Hutt 5040, New Zealand MARK P. SIMPSON, School of Geography, Geology...1142, New Zealand ROBERT L. BRATHWAITE, GNS Science, P.O. Box 30-368, Lower Hutt, New Zealand JEFFREY... Auckland 1142, New Zealand Abstract Epithermal Au-Ag vein deposits of the Hauraki goldfield in the...the Coromandel volcanic zone, New Zealand, produced 320,000 kg Au and 1.5 million kg Ag between 1862 and |  | | Journal (article/letter/editorial) | | constraints from the Broken Hills deposit, Hauraki Goldfield, New Zealand Helen A. Cocker & Jeffrey L. Mauk &...deposit in the Hauraki Goldfield of New Zealand. The opaque minerals include pyrite, electrum, acanthite...other adulariasericite epithermal deposits in the Hauraki Goldfield and elsewhere worldwide. Broken Hills...occur with high-fineness electrum. Broken Hills is the only deposit in the Hauraki Goldfield where uytenbogaardtite...minerals include covellite, chalcocite, Au-rich electrum, barite, and a variety of iron oxyhydroxide minerals |  | | Book | | UC-NRLF NEW ZEALAND of department Geological Survey Branch (P. G. Morgan, Director). LIST...LIST OF THE MINERALS OF NEW ZEALAND, BY P. O. Issued MORGAN AND under the authority of the Hou, J...Z. JOHN MACKAY, GOVERNMENT PRINTER 1913. NEW ZEALAND-!, n Department jfe 5j Geological Survey...Morgan, Director). LIST OF THE MINERALS OF NEW ZEALAND, P. Issued O. MORGAN AND under the authority...Minerals . . ... LIST OF THE MINERALS OF NEW ZEALAND INTKODUCTION. FOR many years there has been |  | | Journal (article/letter/editorial) | | 269–290 The Waihi Epithermal Gold-Silver-Base Metal Sulfide-Quartz Vein System, New Zealand: Temperature...Temperature and Salinity Controls on Electrum and Sulfide Deposition ROBERT L. BRATHWAITE† AND KEVIN FAURE Institute...Lower Hutt, New Zealand Abstract The large, andesite-hosted quartz vein system at Waihi contains a major...sphalerite-galena-pyritechalcopyrite-acanthite-electrum assemblage at medium to shallow levels. Fluid...low CO2 contents (0.05–0.24 wt %). Quartz within electrum-poor Zn-Pb-Fe sulfide bands was deposited at higher |  | | Journal (article/letter/editorial) | | of a Large Epithermal Province: The Hauraki Goldfield, New Zealand* JEFFREY L. MAUK,1,† CHRIS M. HALL...92019, Auckland Mail Centre, Auckland 1142, New Zealand 2 Department of Geological Sciences, University...of Arizona, Tucson, Arizona 85721 Abstract The Hauraki goldfield in the Coromandel volcanic zone contains...47 ± 0.06 Ma. The southernmost deposit in the Hauraki goldfield, Muirs Reef, has adularia in quartz veins...these results indicate that mineralization in the Hauraki goldfield ranges from 16.3 Ma in the north to 2 |  | | Journal (article/letter/editorial) | | The Favona Epithermal Gold-Silver Deposit, Waihi, New Zealand MARK P. SIMPSON† AND JEFFREY L. MAUK School...Mail Centre, Auckland 1142, New Zealand Abstract The Favona deposit is a new epithermal vein discovery...>42.1 million oz (Moz) Ag), in the Hauraki goldfield of New Zealand. The concealed Favona vein is hosted...exploration of known epithermal deposits throughout the Hauraki goldfield for additional resources. Introduction...than 200 metric tons (t) of gold (e.g., Martha, New Zealand; Hishikari, Japan; Acupan, Philippines; Comstock |  | | Journal (article/letter/editorial) | | Epithermal Orebody: The Martha Hill Deposit, Waihi, New Zealand K. BERNARD SPÖRLI1,† AND HUGH CARGILL2 1...92019, Auckland 1142, New Zealand 2 28 Norwich Avenue, New Plymouth 4310, New Zealand Abstract We describe...world-class Martha Hill mine in the Hauraki goldfield of New Zealand (Figs. 1, 2), with a total mined and...some of the other epithermal gold deposits in the Hauraki goldfield and overseas. Regional and Local Geology...is part of the Hauraki goldfield on the Coromandel peninsula of northern New Zealand (Christie et al |  | | Report (issue) | | NEW ZEALAND DEPARTMENT OF SCIENTIFIC AND INDUSTRIAL RESEARCH NEW ZEALAND GEOLOGICAL SURVEY 125th ANNIVERSARY...1865 -1990 NEW ZEALAND GEOLOGICAL SURVEY BULLETIN 104 ISSN 0077-9628 Minerals of New Zealand by G. L....initials should be G.T., not G.L. Lower Hutt, New Zealand 1990 I I Beach sand, alluvium, • terrace...Figure 1. Simplified geological sketch-map of New Zealand. 0 20 40 60 80 100 KM l INTRODUCTION It...Morgan's "Minerals and Mineral Substances of New Zealand" was published, as NZ. Geological Survey bulletin |  | | Journal (article/letter/editorial) | | of the Golden Cross Epithermal Au-Ag Deposit, New Zealand MICHAEL J. BEGBIE,†,* Department of Geology,... University of Otago, P.O. Box 56, Dunedin, New Zealand K. BERNHARD SPÖRLI, School of Geography, Geology...92019, Auckland Mail Centre, Auckland 1142, New Zealand AND JEFFREY L. MAUK School of Geography, Geology...Auckland 1142, New Zealand Abstract Golden Cross, located in the Hauraki goldfield of New Zealand, is a classic...sulfide veins, followed by two to five stages of electrum-bearing quartz veins. The most voluminous of these |  | | Journal (article/letter/editorial) | | Epithermal Au-Ag Deposits of the Southern Hauraki Goldfield, New Zealand* Mark P. Simpson,1,** Sabina Strmic...University of Auckland, Private Bag 92019, Auckland, New Zealand 2 U.S. Geological Survey, P.O. Box 25046, MS-973...and Waitekauri deposits, southern Hauraki goldfield, New Zealand. Quartz veins contain colloform to...The Hauraki goldfield is located in the Coromandel Peninsula of the North Island of New Zealand (Fig...Research Centre, 114 Karetoto Road-RD4, Taupo 3377, New Zealand. † Corresponding author, e-mail: s.strmic-palinkas@auckland |  | | Journal (article/letter/editorial) | | and application to the Martha Au–Ag mine, Waihi, New Zealand Devin N. Castendyk a a,* , Jeffrey L. Mauk...Auckland, New Zealand b Geology Department, The University of Auckland, Private Bag 92019, Auckland, New Zealand...method to the Martha epithermal Au–Ag mine, Waihi, New Zealand. Heterogeneous ore deposits, like Martha...pit lakes in humid climates, such as New Zealand and Papua New Guinea, may receive greater volume contributions...the Martha epithermal Au–Ag mine, Waihi, North Island, New Zealand (Fig. 1). Hydrothermal orebodies commonly |  | | Journal (article/letter/editorial) | | Mines of the Waihi District, Hauraki Goldfield, New Zealand. By P. G. MORGAN.New Zealand Dept. of Mines...resurveyof the Waihi district, a portion of the Haurakigoldfieldin the easternpart of North Island, New Zealand...Zealand. This region is an example of gold-silvermineralizationin Middle Tertiary volcanic rocks consisting...also occur. The gold and silver is present as electrum, and is generally extremely fine and associated...Bell and Fraser is rejected as unnecessary. The region having previously stood at a higher level, oxidation |  | | Journal (article/letter/editorial) | | and Prospects of the Waitekauri Area, Hauraki Goldfield, New Zealand MARK P. SIMPSON† AND JEFFREY L. MAUK...Auckland, New Zealand Abstract The Waitekauri area of the Hauraki goldfield, New Zealand, contains several...et al., 2003; Comstock: Hudson, 2003; Favona, New Zealand: Simpson and Mauk, 2007). Many papers describe...Waitekauri area of the southern Hauraki goldfield, North Island, New Zealand (Figs. 1, 2). The area has been...deposits 945 946 SIMPSON AND MAUK 176°E 175°5´E Hauraki Goldfield Great Barrier Island Auckland 38°S |  | | Journal (article/letter/editorial) | | Epithermal Gold-Silver Deposits in the Waihi-Waitekauri Region, New Zealand ANNE E. MORRELL,†,* CORINNE A. LOCKE...92019, Auckland Mail Centre, Auckland 1142, New Zealand Abstract Aeromagnetic, airborne radiometric...the adularia-sericite epithermal province of the Hauraki goldfield have delineated distinct anomalies associated...Waitekauri-Maratoto area. Gravity data in the Waihi district define a unique, double-peaked, 50-gravity...the magnetic quiet zone and the locations of the Waihi and Favona deposits. Preliminary modeling indicates |  | Mering, John A., Barker, Shaun L.L., Huntington, Katharine W., Simmons, Stuart, Dipple, Gregory, Andrew, Benjamin, Schauer, Andrew (2018) Taking the Temperature of Hydrothermal Ore Deposits Using Clumped Isotope Thermometry. Economic Geology, 113 (8) 1671-1678 doi:10.5382/econgeo.2018.4608 | Journal (article/letter/editorial) | | Science, University of Waikato, Private Bag 3105, Hamilton, 3240, New Zealand 2Centre 3Department 4Energy...geothermal fields in the Taupo volcanic zone, New Zealand, that record growth temperatures between 130°...Measurements carried out at the Waihi low sulfidation deposit in New Zealand, the Antamina polymetallic skarn...temperature gradients defined using other methods. At Waihi, an andesite-hosted deposit, temperature controls...to reflect the local geotherm. Epithermal (e.g., Waihi) and geothermal (e.g., Taupo volcanic zone) systems |  | | Journal (article/letter/editorial) | | Oxford: Clarendon Press, 1924; 5 colored maps. $5.00. New York: Oxford University Press, American Branch. Pp...together of the scattered data on any particular region laborious without an index. The much-desired index...colored map. The known geology of Papua, or British New Guinea, is as yet very fragmentary, for the territory...Mines of the Waihi District, Hauraki Goldfield, New Zealand. By P. G. MORGAN.New Zealand Dept. of Mines...resurveyof the Waihi district, a portion of the Haurakigoldfieldin the easternpart of North Island, New Zealand |  | | Journal (article/letter/editorial) | | rhyolite-hosted epithermal Au±Ag deposits of the Hauraki Gold®eld, New Zealand Received: 25 August 1998 / Accepted:...samples from four epithermal Au±Ag deposits of the Hauraki Gold®eld were logged and quanti®ed by vein spacing...Nuclear Sciences, P.O. Box 30368, Lower Hutt, New Zealand e-mail: b.brathwaite@gns.cri.nz Fax: +64-04-5704657...deposits. Introduction The Hauraki Gold®eld, in the North Island of New Zealand, contains epithermal Au±Ag...deposits hosted in andesite and dacite (Martha Hill at Waihi and Golden Cross) and predominantly hosted in rhyolite |  | | Journal (article/letter/editorial) | | the GoldenCrossEpithermalGold-SilverDeposit,Waihi, New Zealand CORNELE. J. DE RONDE* Geology DepartmentUniversity...NewZealandGeologicalSur•etd, P.O. Box$0 $68, Lower Hurt, New Zealand Abstract The GoldenCrossepithermalgold-silverdepositis...the Taupo volcaniczone in the Waihi district,Coromandel Peninsula,New Zealand.Gold andsilverof economicgrades(1-20...previouslybeendescribedfromepithermal depositsin New Zealandandpossiblycontainorganicliquid(s). Oxygenisotopesof...crosssectionthrough the Golden the important Hauraki epithermal district of New Crosshydrothermal system.Variationsin |  | | Journal (article/letter/editorial) | | of the Golden Cross Epithermal Au-Ag Deposit, New Zealand MARK P. SIMPSON,† JEFFREY L. MAUK, Geology Department...University of Auckland, Private Bag 92019, Auckland, New Zealand AND STUART F. SIMMONS Geothermal Institute...Auckland, New Zealand Abstract Golden Cross, located in the Coromandel peninsula, New Zealand, is a classic...deposit located within the Coromandel peninsula, New Zealand (Fig. 1). An earlier investigation by de Ronde...Coromandel peninsula within the North Island of New Zealand. alteration minerals to their distribution in |  | Simpson, Mark P., Gazley, Michael F., Stuart, Alistair G.J., Pearce, Mark A., Birchall, Renee, Chappell, Debra, Christie, Anthony B., Stevens, Murray R. (2019) Hydrothermal Alteration at the Karangahake Epithermal Au-Ag Deposit, Hauraki Goldfield, New Zealand. Economic Geology, 114 (2) 243-273 doi:10.5382/econgeo.2019.4630 | Journal (article/letter/editorial) | | Karangahake Epithermal Au-Ag Deposit, Hauraki Goldfield, New Zealand Mark P. Simpson,1,† Michael F. Gazley...Research Centre, 114 Karetoto Road-RD4, Taupo 3377, New Zealand Scientific and Industrial Research Organisation...2013, New Zealand 4 GNS 5 Stevens Science, 1 Fairway Drive, Avalon, Lower Hutt 5010, New Zealand and...Pine Harbour Parade, Beachlands, Auckland 2018, New Zealand Abstract The Karangahake deposit is the third...largest gold producer in the Hauraki goldfield, Coromandel, New Zealand. Production was mainly from the |  | Simmons, S. F., Arehart, G., Simpson, M. P., Mauk, J. L. (2000) Origin of Massive Calcite Veins in the Golden Cross Low-Sulfidation, EpithermalAu-Ag Deposit, New Zealand. Economic Geology, 95 (1) 99-112 doi:10.2113/gsecongeo.95.1.99 | Journal (article/letter/editorial) | | Cross Low-Sulfidation, Epithermal Au-Ag Deposit, New Zealand STUART F. SIMMONS,† Geothermal Institute and...University of Auckland, Private Bag, 92019, Auckland, New Zealand GREG AREHART,* Institute of Geological and Nuclear...Wairakei Research Centre, Private Bag 2000, Taupo, New Zealand MARK P. SIMPSON, Geology Department, University...University of Auckland, Private Bag, 92019, Auckland, New Zealand AND JEFFREY L. MAUK Geology Department, University...University of Auckland, Private Bag, 92019, Auckland, New Zealand Abstract At Golden Cross, andesitic lavas and |  | | Journal (article/letter/editorial) | | analyses in pit lake prediction, Martha Mine, New Zealand 1: Relationship between turnover and input water...Department, State University of New York, College at Oneonta, Oneonta, New York, 13820, USA School of Geography...Science, The University of Auckland, Auckland, New Zealand Received 18 December 2006; received in revised...proposed pit lake at the Martha Au–Ag Mine, New Zealand, created with the hydrodynamic program DYRESM...Chemical Geology 244 (2007) 42–55 Martha Mine, New Zealand (Fig. 1), will be modeled and a sensitivity analysis |  | | Book (edition) | | Agate (Clent Hills). Topaz (Pegasus Bay). NEW ZEALAND MINERALS and GEMS by W. M. CAMPBELL, M.A.,...upon these sculptured features of a planet's face ? New Zealand's grainfields, whence come our daily bread...amethyst, opal, carnelian and cinnabar are but a few of New Zealand’s precious pebbles. If of an even content...Upheaved above wide ocean from deep undercrust. New Zealand is a contorted, broken land of varied mineral...titanium, “the metal of the future” with which New Zealand could supply all Europe— why, if this land ever |  | | Journal (article/letter/editorial) | | in C. Electrum, which usually occurs as disseminations in the naumannite, has formed electrum-only (el)...(el) dendrites in this single layer similar to electrum dendrites at Sleeper, Nevada (Saunders, 1994;...subduction settings and moved into the magma source region by hydrothermal fluids derived from the slab. This...subduction depends on the tectonic history of the region affected. The important factor in the distillation...epithermal ores occur on the North Island of New Zealand in close proximity to that subduction zone (Christie |  | Brathwaite, R., Simpson, M., Faure, K., Skinner, D. (2001) Telescoped porphyry Cu-Mo-Au mineralisation, advanced argillic alteration and quartz-sulphide-gold-anhydrite veins in the Thames District, New Zealand. Mineralium Deposita, 36 (7) 623-640 doi:10.1007/s001260100182 | Journal (article/letter/editorial) | | quartz-sulphide-gold-anhydrite veins in the Thames District, New Zealand Received: 28 August 2000 / Accepted: 2 April...on the northeastern margin of the Thames district, New Zealand. The geological setting is Jurassic greywacke...Sciences Ltd., P.O. Box 31-312, Lower Hutt, New Zealand E-mail: B.Brathwaite@gns.cri.nz Present address:...University of Auckland, Private Bag 92019, Auckland, New Zealand temperatures (450 to >600 °C). These hypersaline...selvages from quartz-gold veins in the Thames district. Introduction A porphyry Cu-Mo-Au prospect was |
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