 | 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) | | 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...04 Ma. Host rock and vein adularia from the Karangahake deposit yield 40Ar/39Ar plateau dates that range...47 ± 0.06 Ma. The southernmost deposit in the Hauraki goldfield, Muirs Reef, has adularia in quartz veins |  | | 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) | | 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...the Karangahake, Martha, Favona, and Waitekauri deposits, southern Hauraki goldfield, New Zealand. Quartz...most commonly detected in inclusions from the Karangahake and Martha deposits. The poor correlation between...under hydrostatic pressure, samples from the Karangahake deposit (Maria vein) were deposited from low-salinity |  | | Journal (article/letter/editorial) | | Favona Epithermal Gold-Silver Deposit, Waihi, New Zealand MARK P. SIMPSON† AND JEFFREY L. MAUK School of...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...Cross (Empire vein), combined with a resource at Karangahake, collectively total more than 3.5 Moz Au and...exploration of known epithermal deposits throughout the Hauraki goldfield for additional resources. Introduction |  | 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) | | Alteration at the Karangahake Epithermal Au-Ag Deposit, Hauraki Goldfield, New Zealand Mark P. Simpson...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...Parade, Beachlands, Auckland 2018, New Zealand Abstract The Karangahake deposit is the third largest gold...gold producer in the Hauraki goldfield, Coromandel, New Zealand. Production was mainly from the Maria and |  | | Journal (article/letter/editorial) | | Gold-Silver Deposits in the Waihi-Waitekauri Region, New Zealand ANNE E. MORRELL,†,* CORINNE A. LOCKE, JOHN...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 unit...data provides an outstanding case study of the district- to regional-scale geophysical characteristics |  | | 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 |  | | Journal (article/letter/editorial) | | Epithermal Orebody: The Martha Hill Deposit, Waihi, New Zealand K. BERNARD SPÖRLI1,† AND HUGH CARGILL2 1 Geology...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 |  | | Journal (article/letter/editorial) | | Sulfide-Quartz Vein System, New Zealand: Temperature and Salinity Controls on Electrum and Sulfide Deposition...Nuclear Sciences, P.O. Box 31312, Lower Hutt, New Zealand Abstract The large, andesite-hosted quartz vein...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...temperatures (295°–242°C) and salinities than quartz in electrum-bearing Zn-Pb-Fe-Cu-Ag sulfide bands (260°–190°C) |  | | 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 |  | | 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) | | can provide improved spatial resolution in the region of interest, but also can suffer from artifacts...2013 the ACTIS scanner was decommissioned and a new instrument was designed and built in collaboration...specimens; in 2013 this instrument was upgraded with new detector components to allow it to approach the capabilities...(Ketcham, 2005; Kyle et al., Fig. 4. Sample of Karangahake epithermal vein gold–silver ore. a. Photograph...that are interpreted as electrum grains; note apparent difference in the electrum concentration between |  | | 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...Miocene - Pliocene) andesites and dacites Komata Karangahake Coromandel Group Golden Cross Martha Hill |  | | Journal (article/letter/editorial) | | 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) | | 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...activity. Regional geology and mineralisation The Hauraki Gold®eld is associated with a Miocene±Pliocene |  | | 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) | | at the Golden Cross Epithermal Au-Ag Deposit, New Zealand JEFFREY L. MAUK† AND MARK P. SIMPSON School of...92019, Auckland Mail Centre, Auckland 1142, New Zealand Abstract Golden Cross is a late Miocene volcanic-hosted...assemblages located in the Coromandel peninsula, New Zealand. Gold- and Ag-bearing quartz veins occur in intensely...Leavitt and Arehart, 2005; Warren et al., 2007). District- and deposit-scale investigations of oxygen and...Miocene - Pliocene) andesites and dacites Komata Karangahake Coromandel Group Golden Cross Martha & Favona |  | | Journal (article/letter/editorial) | | referred to as gold, those with fineness 200-800 as electrum and less than 200 as silver. Historically, fineness...Morrison graduated from the University of Otago, New Zealand in 1973. He obtained his Ph.D. from the University...Shimazaki and Shimizu, 1986, 1987). In recent years, new thermodynamic data on the bisulphide-complexesof...from Fisher ( 1945 ), have been reassigned in the new classification to facilitate comparison of bullion... Canadian Arrow 21 Lily 22 23 Three Sisters New Consort 24 Fairview 25 Sheba 26 Agnes 27 |  | | Report (issue) | | OF ORE TEXTURES BY EDSON Ithaca, S. BASTIN New York December 5, 1950 Made in United Slates...Geological Society of America 419 West 117 Street, New York 27, N. Y. The Memoir Series of The Geological...seasoning must be passed through before sufficient new agreement develops among the research workers to...conflicts of viewpoint. Edson S. Bastin that Ithaca, New February 1, York 1950. later book on this subject...Composite paragenetic diagram for the Zacatecas district, Mexico 27. Automorphic replacement of iron silicate |  | | Report (issue) | | States • • • ••• Australia • • • ••• • •• •• • New Zealand ••• ••• 0 • . •• • •• • .... • •• ••• ••...while the natural gold-silver alloy know11 as '' electrum '' contains 20 pe.r cent. or more of the less...California, and the west coast of the South Island of New Ze.a land. 1 ' r 7 • • The auriferous conglomerates...Hanson, Eng. Min. Journ., New Ybrk, 1920, 109, 194. The Mineral Industry, New York, 1919, 28, 295- 309...309, and 747- 794. Chem. and Met. Eng., New York, 1920, 22, 3-4. :it • 9 • remark, however, considerable |  | | Book | | Pennsylvania 16802 P E R G A M O N PRESS OXFORD SYDNEY · NEW YORK · PARIS · · TORONTO FRANKFURT υ. κ. ...Press Inc., Maxwell House, Fairview Park, Elmsford, New Y o r k 10523, U.S.A. CANADA Pergamon of Canada...Australasia, by Australia, Tasmania, New Zealand, New Caledonia, Papua-New Guinea (speci fically Bougainville)...21 Australia 27 Tasmania 13 New Zealand 2 Bougainville.... 1 Fiji 1 New Caledonia... 2 46 102 At the...Mh.) New South Wales Geological Survey (New S. Wales Geol. Surv.) (all publications) New Zealand Geological |  | | Book | | appointments at the Astrobiology Centre, University of New South Wales, Sydney, and the China University of...in Europe, southern Africa, South East Asia, New Zealand, the southwest Pacific, China, Greenland and... Contents 4.6.5 Candelaria, Punta Del Cobre District, Chilean Coastal Belt. . . . . . . . . . . . ...2 Ladolam Epithermal System, Lihir Island, Papua New Guinea . . . . . . . . . . . . . . . . . . . . ..... . . . . . . . . 5.3.3 Hauraki Goldfield, Coromandel Peninsula, New Zealand 5.3.4 The Epithermal Systems |  | | Book | | FOUNDATION ~ ~ VAN NOSTRAND REINHOLD _ _ _ _ _ _ _ New York Copyright © 1987 by Van Nostrand Reinhold...Fifth Avenue New York, New York 10003 Van Nostrand Reinhold International Company Limited II New Fetter Lane...Solutions: Veindikes / 205 The Ore Magmas. McGraw-Hill, New York, 1923, pp. 1-3 9-lB SPURR,J.E.:TheOriginofFissureVeins...:TheOriginofFissureVeins / 207 The Ore Magmas. McGraw-Hill, New York, 1923, pp. 707-709 9-2 FARM IN, R.: Host-Rock...Rocks / 235 Gold Deposits o/the World, McGraw-Hill, New York, 1937, pp. 12-37 10-2 MOORE, E. S.: Genetic |  | | Book (edition) | | Fourth Impression McGRAW-HILL BOOK COMPANY, Inc. NEW YORK: 370 SEVENTH AVENUE LONDON : 6 & 8 BOUVERIE...disconcerting to measure the rapid accumulation of new facts and theories. In spite of the disturbed condition...coordinate rapidly the deposits of any given metal. Many new illus- have been introduced. Owing to war conditions...hematites of the Appalachian Origin Classification region Iron ores of Bilbao, Spain Residual ores of Cuba...XIX The Hematite Deposits of the Lake Superior Region — Geology — The "iron formations" — The iron ores |
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