 | | Journal (article/letter/editorial) | | Epithermal Gold-Silver Deposits of the Hauraki Goldfield, New Zealand: An Introduction DAVID A. JOHN† U.S...California 94025 Geology and Mineral Deposits of the Hauraki Goldfield The five papers that follow describe...systems in the Hauraki goldfield on the Coromandel peninsula of the North Island of New Zealand (Fig. 1).... The Hauraki goldfield contains more than 50 Miocene and Pliocene epithermal Au-Ag deposits and several...quartz veins in 1861 at the site of the Kapanga mine (Fig. 1C). Prospecting elsewhere on the Coromandel |  | | Journal (article/letter/editorial) | | Deposits and Prospects of the Waitekauri Area, Hauraki Goldfield, New Zealand MARK P. SIMPSON† AND JEFFREY...Auckland, New Zealand Abstract The Waitekauri area of the Hauraki goldfield, New Zealand, contains several...several adularia-sericite epithermal Au-Ag deposits and prospects. From west to east, the area contains...contains the Sovereign, Jubilee, Scimitar, Scotia, Teutonic, and Jasper Creek deposits and prospects, which...the east. Alteration minerals include quartz, adularia, albite, chlorite, pyrite, illite, interstratified |  | | Journal (article/letter/editorial) | | Au-Ag Deposits: A Case Study from the Waitekauri Area, New Zealand MATHIJS A. BOODEN,† JEFFREY L. MAUK...92019, Auckland Mail Centre, Auckland 1142, New Zealand Abstract Major element geochemical exploration...alteration can be quantified. In the Hauraki goldfield of New Zealand, altered andesites and dacites host...rocks in the Waitekauri area along a 3-km-wide section that extends from the central Waitekauri fault to...altered rocks, and 24 percent of rock mass in adularia-dominated altered rocks. On average mass losses |  | | Journal (article/letter/editorial) | | of Adularia-Sericite Epithermal Gold-Silver Deposits in the Waihi-Waitekauri Region, New Zealand ANNE...92019, Auckland Mail Centre, Auckland 1142, New Zealand Abstract Aeromagnetic, airborne radiometric...surface gravity data from the adularia-sericite epithermal province of the Hauraki goldfield have delineated...volcanic zone. An extensive (>20-km2) zone in the Waitekauri Valley is likely to be the result of multiple...in the core of alteration zones in the form of adularia and illite. A broad K/Th anomaly correlates with |  | | Journal (article/letter/editorial) | | Chemistry of Adularia-Sericite Epithermal Au-Ag Deposits of the Southern Hauraki Goldfield, New Zealand* Mark...University of Auckland, Private Bag 92019, Auckland, New Zealand 2 U.S. Geological Survey, P.O. Box 25046, MS-973...in adularia-sericite Au-Ag epithermal veins from the Karangahake, Martha, Favona, and Waitekauri deposits...deposits, southern Hauraki goldfield, New Zealand. Quartz veins contain colloform to crustiform bands that...and 242°C. Fluid inclusions in quartz from the Waitekauri deposit homogenize from 210° to 265°C and contain |  | | 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...Abstract The Hauraki goldfield in the Coromandel volcanic zone contains approximately 50 adularia-sericite...goldfield, adularia from Paritu yields a single 40Ar/39Ar plateau date of 16.32 ± 0.13 Ma, and adularia from...province, adularia from the Ohui deposit gives a preferred 40Ar/39Ar age of 8.29 ± 0.25 Ma, adularia from |  | 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 |  | | 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) | | 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...Hydrothermal quartz and pyrite are ubiquitous. Adularia is widespread and envelopes veins; it locally...albite adjacent to the Amaranth vein at depth. Both adularia and albite are variably replaced by illite, which |  | | 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...The world-class Martha Hill mine in the Hauraki goldfield of New Zealand (Figs. 1, 2), with a total mined...state of structural information in the Martha Hill mine up to 1994, as presented by Cargill (1994), and...levels of the mine similar to the downward disappearance of microcrystalline quartz and adularia (Brathwaite |  | | 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) | | magmatic arc, is becoming an emerging part of the region for gold and copper endowment. A total of 15.4%...emerging part of the region for gold and copper endowment ⁎ (Maryono et al., 2012, 2018). New deposits and...geologically. Moreover, during the past years, some new LS epithermal type prospects have been discovered...captured from the published papers, but some others are new (never been published before). Most of the data and...approximately 70 km west of Bayah Dome (a gold district at western Java). The exploration work at the |  | | Report (issue) | | WALCOTT, DIRECTOR GEOLOGY OF THE TONOPAH MINING DISTRICT, NEVADA BY JOSIAH EDw-ARD SPURR .. . =. .: ·..._______ . _... ___ .... ___ . ___ .. ___ . 86 Adularia ............. ~ ................................. . . . . . . . . . . . . . . . Montana Tonopah mine ............... -'. . . . . . . . . . . . . . ................................. Tonopah Extension mine ........................ , . . . . . . . . . . .... . . . . . . . . . . . . . . . . . . . . . . . New York Tonopah shaft ................ _........... |  | | Report (issue) | | 1909, the writer spent 10 days in the Carrville district, Trinity County, Cal., and, incidental to other...written. In November, 1910, another visit to the district was made, but inclement weather handicapped the...The growing economic importance of this min ing district merits notice, and it is hoped that this brief...Headlight mine; Matthew Macllwaine, of the Dorleska; W. L. Chapmen, of the Golden Jubilee; J. H. Porter...Alien, of Aliens Camp; and many others in the district. Mr. Waldemar Lindgren, chief geologist of the |  | | Report (volume) | | the current-year issues of the monthly catalog "New Publications of the U.S. Geological Survey." Prices...Missouri--1400 Independence Rd. FAIRBANKS, Alaska--New Federal Buildmg, Twelfth Ave. 101 • Mineral Deposit...and effective resource assessment of such a broad region required that grade-tonnage models be created for...and unreasonably speculative when genetic. What is new today is that, although we must admit that all are...rock types 133 Cross section through the Kalavos district Cyprus showing relationship of massive sulfide |  | | Report (issue) | | crystal is 9 mm. Frontispiece: Azurite, Burra copper mine; 5 mm crystal group on chrysocolla. INTRODUCTION...minerals came from Johannes Menge who was appointed Mine and Quarry Agent to the South Australian Company...began in the Department of Mines on a comprehensive new mineral catalogue. This work has formed the basis...and localities are grouped under the particular region. A set of regional maps, which act as a guide to... CENTRAL NORTH fie Eyre \N roa WESTERN oe REGION WESTE! aN 5 STUART > Gy WALES. ea Lake |  | | Report (issue) | | Huanqui de Centromin Peru, William X. Chavez de la New Mexico Institute of Mining and Technology, EUA y...EJEMPLOS High Plateau, Del Norte County, USCA Goto Mine, Luzon, PLPN (Wells y otroa, 1946) (LeBlano y Violette...Nombre Ace of Spades Adobe Canyon Gp. Ajax Alice Mine Allan (Johnson) Alta Hill Althouse Alyce and Blue...etc Buttercup Chrome Camden Mine Campbell Camptonville area Castro Mine Cattle Springs Cavyell Horse...Cleopatra Clover Leaf Codd Prospect Coggins Collard Mine Commander Coon Mt. Nos. 1-3 Copper Creek (Low Divide) |  | | Journal (article/letter/editorial) | | March 2015 History and Mineralogy of the St. Louis Mine Houghton County, Michigan Twentieth in a series...and I have extensively collected at the St. Louis mine, located about 1.3 miles east of the village of...microcrystals in amygdules contained in a lava flow top. The mine has also yielded uniquely banded agates that occur...copper district. Figure 1 (top left page). A partial view of the flat-topped agateproducing mine dumps...dumps at the St. Louis mine. The foundation on the right was the warehouse. Tom Rosemeyer photo, 7 May 2012 |  | | Report (issue) | | Occurrences east of Sudbury Falcon Mine Wanup quarry Elizabeth Mine Wahnapitei occurrences MacDonald occurrence...quarry Vermilion River placer deposits Moose Mountain Mine Nickel-copper mines west of Sudbury High Falls Road...occurrence McMillan Mine Wallace Mine Sheguiandah quarry Shakespeare Mine Massey Mine Hermina Mine Elliot Lake...Bi-Ore Mine Pater Mine Pronto Mine Jasper conglomerate occurrences, Highway 546 Glagoma Mine Cheney Mine...Mine Gould Mine Havilah Mine Rock Lake Mine Bruce Mines copper mines Stobie Mine Jasper conglomerate |  | | Report (issue) | | GEOLOGY OF AUSTRALIAN AND PAPUA NEW GUINEAN MINERAL DEPOSITS Monograph 22 i Cover photograph: Aerial...Aerial view of Main-Barton open pit, Jundee gold mine, WA, viewed from the east, June 1997. The pit is approximately...Mines Limited. ii GEOLOGY OF AUSTRALIAN AND PAPUA NEW GUINEAN MINERAL DEPOSITS Monograph 22 Edited by...understanding of the mineral wealth of Australia and Papua New Guinea. v vi Committees MONOGRAPH 22 COMMITTEE...Mineral Industries Research Association Limited Papua New Guinea - Department of Mining and Petroleum Bureau |  | | Book | | editing the book. The second edition incorporates new information on recently identified minerals as well...mineralogists have resulted in the discovery of many new minerals and mineral occurrences within the state...In addition to numerous new illustrations, this second edition contains many new locality listings, entries...species, varieties and synonyms, minerals new to Michigan, and new references. Most general sections in Part...totally new. Noteworthy but unverified occurrences have been grouped together in Part III, and new appendices |  | | Book (volume) | | consistently applied; it is inevitable, however, that as new information is acquired and better understanding...intermediate microclines. A further potassium felspar, adularia, is one which is recognized principally by its...Pericline is the sodium felspar counterpart of adularia, and it has a similarly restricted paragenesis...that again the cleavages are non-rectangular. Adularia is called after the locality in the Adular Mountains...have a relatively large content of NaAlSi308. Adularia is the only alkali felspar consistently to have |  | | Report (issue) | | States • • • ••• Australia • • • ••• • •• •• • New Zealand ••• ••• 0 • . •• • •• • .... • •• ••• ••...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...practically determined by the dollar excha.n ge rate in New York, • * Refining Gold Bullion with Chlorine Gas |  | | Journal (issue) | | Geological Institute of Romania Marian Lupulescu, New York State Museum, USA Gheorghe Udubaşa, University...Metaliferi Mts. 15 4. Baia Mare metallogenic district 64 5. Other sources of native gold from Romania...Copăescu and Sorin Găman), today the Gold Museum has a new and improved appearance. In this respect, starting...educated in Germany. The collection has been added with new gold specimens from the ore deposits around Brad...belonged to mining companies based in the Brad region. Today, it is owned by S.C. “MINVEST” S.A. Deva |  | | Journal (issue) | | AZURITES 16 Part I: Electric blues from the Milpillas mine. By Bob Jones 16 PREHISTORIC TEXAS Lubbock landmarks...others, at an auction. I was told it was taken from a mine in Alaska called Aurora Borealis in the ’60s. I...on, there is an old mine adit bored into a sheer rock wall. Beyond the old mine, there are spectacular... 15 Part I: Electric Blues from the Milpillas Mine T Story by Bob Jones he azurite specimens recently...But this recent source of azurite, the Milpillas mine near Cuitaca, about 25 miles south of the Arizona |
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