 | 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,ā ...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 |  | | 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, ā¢ 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 |  | 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,ā 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) | | of the Golden Cross Epithermal Au-Ag Deposit, New Zealand MICHAEL J. BEGBIE,ā ,* Department of Geology,... University of Otago, P.O. Box 56, Dunedin, New Zealand K. BERNHARD SPĆRLI, 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...Taylor, 9 Clifton Road, P.O. Box 9544, Hamilton, New Zealand. * Present 0361-0128/07/3683/873-20 these fault-fracture |  | 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,ā 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 |  | | Journal (article/letter/editorial) | | galenain ore from the ComstockLode. In the Waihi districtof New Zealandargentiteis an importantmineralin...associations of native gold. In the Bridge River district Cairnesx4 found free gold commonwith acicularcrystalsof...mineralization indicatesgood values. In the Alleghany districtā¢7 of California free gold occurs mainly with arsenopyrite...particularlyrich specimenfrom the Tightner Mine, Alleghany district,California,consistsof much fracturedarsenopyrite...inclusions in arsenopyrite. Tight- ner Mine, Alleghany district, California. X 22. FIG. 2. Gold (medium gray) |  | Vidal, Conrado Permuy, Guido, Diego M., Jovic, SebastiĆ”n M., Bodnar, Robert J., Moncada, Daniel, Melgarejo, Joan Carles, Hames, Willis (2016) The Marianas-San Marcos vein system: characteristics of a shallow low sulfidation epithermal AuāAg deposit in the Cerro Negro district, Deseado Massif, Patagonia, Argentina. Mineralium Deposita, 51 (6) 725-748 doi:10.1007/s00126-015-0633-9 | Journal (article/letter/editorial) | | sulfidation epithermal AuāAg deposit in the Cerro Negro district, Deseado Massif, Patagonia, Argentina Conrado...Berlin Heidelberg 2016 Abstract The Cerro Negro district, within the Argentinian Deseado Massif province...contains about 70 % of the AuāAg resources in the district. Mineralization consists of Upper Jurassic (155...Patagonia . Argentina Introduction The Cerro Negro district is located at the northwestern margin of the Deseado...(1999) to define the region as an AuāAg metallogenic province. Since ā¼2000, the region has produced 4.9 Moz |  | | Report (chapter) | | the western U.S.A., Japan, the North Island of New Zealand, the Philippines, Fiji and Spain are described...vein deposit of epithermal type, about which much new information has recently become available. The term...zinc and copper. According to an analysis of the district undertaken by Geyne and co-workers, 9 the volcanic...carbonatization fringing the veins. At Tayoltita, San Dimas district (Fig. 1), volcanic rocks and an intercalated conglomerate...820 g/ton Ag and 16 g/ton Au. 10 The Guanajuato district (Fig. 1) is characterized by at least 700 m of |  | | Report (issue) | | supplies of minerals, especially within the Empire, new methods of usage and other commercial developments...1 N. America : Canada . . . . . 2 3 Australasia: New South Wales ; Queensland ; South Australia ; Tasmania...; Vi c t o r i a ; W e s t e r n Australia ; New Zealand . . . . 52 ā¢ ā¢ CHAPTER I I I SOURCES OF SUPPLY...ValuSterling. ANNUAL VARIATIONS IN VALUE OF SILVER In New York, quotations for silver are given i n cents per...(Dark-red silver ore) Stephanite (Brittle silver ore) Polybasite Tetrahedrite (Fahlore) ā¢ ā¢ ā¢ ā¢ ā¢ ā¢ ā¢ ā¢ |  | Chauvet, Alain, Bailly, Laurent, AndrĆ©, Anne-Sylvie, MoniĆ©, Patrick, Cassard, Daniel, Tajada, Fernando Llosa, Vargas, Juan Rosas, Tuduri, Johann (2006) Internal vein texture and vein evolution of the epithermal Shila-Paula district, southern Peru. Mineralium Deposita, 41 (4) 387-410 doi:10.1007/s00126-006-0068-4 | Journal (article/letter/editorial) | | and vein evolution of the epithermal Shila-Paula district, southern Peru Received: 28 July 2005 / Accepted:...2006 Abstract The epithermal Shila-Paula AuāAg district is characterized by numerous veins hosted in Tertiary...sphaleriteāchalcopyriteāpyriteāgalenaātennantiteātetrahedriteāpolybasiteāpearceiteā electrum assemblage. The ore in the...analysis of the Shila-Paula vein system and give new insights into the analysis of internal vein filling...metallogenic provinces of southern Peru The Shila-Paula district is one of the many areas of low-sulfidation epithermal |  | MilĆ©si, J. P., Marcoux, E., Sitorus, T., Simandjuntak, M., Leroy, J., Bailly, L. (1999) Pongkor (west Java, Indonesia): a Pliocene supergene-enriched epithermal Au-Ag-(Mn) deposit. Mineralium Deposita, 34 (2) 131-149 doi:10.1007/s001260050191 | Journal (article/letter/editorial) | | of gold and 1026 t of silver (Aneka Tambang 1996, new calculation). It is also one the most recent and...Ciawitali district 20 km southwest of Pongkor (Felenc et al. 1991) and the Cibugis district 15 km north...over from the historical Cikotok-Cirotan gold district where the adularia-sericite veins are now worked...mineralization All the mineralized veins in the district, apart from the Cikoret vein in the southwest...Ciurug The Ciurug vein is the most important of the district (55.9 t of gold and 534.6 t of silver), being |  | PĆ”ez, G.N., Ruiz, R., Guido, D.M., RĆos, F.J., Subias, I., Recio, C., Schalamuk, I.B. (2016) High-grade ore shoots at the Martha epithermal vein system, Deseado Massif, Argentina: The interplay of tectonic, hydrothermal and supergene processes in ore genesis. Ore Geology Reviews, 72. 546-561 doi:10.1016/j.oregeorev.2015.07.026 | Journal (article/letter/editorial) | | the observations of PĆ”ez et al. (2011) by giving new insights into the study of the vein inļ¬lls with the...and Haller, 2002). Intricate stratigraphic This region is characterized by numerous gold and silver epithermal...this relatively young gold and silver producing region. 3. Local geology The mineralization at Martha...both cases, the inclusions are mostly galena, polybasite, acanthite and native silver (Figs. 3a and 5b)...sphalerite with associated chalcopyrite, arsenopyrite, polybasite and native silver (Figs. 3a and 4d). Later on |  | | Report (issue) | | States ā¢ ā¢ ā¢ ā¢ā¢ā¢ Australia ā¢ ā¢ ā¢ ā¢ā¢ā¢ ā¢ ā¢ā¢ ā¢ā¢ ā¢ New Zealand ā¢ā¢ā¢ ā¢ā¢ā¢ 0 ā¢ . ā¢ā¢ ā¢ ā¢ā¢ ā¢ .... ā¢ ā¢ā¢ ā¢ā¢ā¢ ā¢ā¢...California, and the west coast of the South Island of New Ze.a land. 1 ' r 7 ā¢ ā¢ 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 ā¢ 9 ā¢ remark, however, considerable...practically determined by the dollar excha.n ge rate in New York, ā¢ * Refining Gold Bullion with Chlorine Gas |  | | 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 ā Geology ā The "iron formations" ā The iron ores |  | | Journal (issue) | | has gained considerable favour in the Hamakna district of Hawaii, the farmers there preferring it to...tried with promising results at various places in New South Wales (Qiteensland Agric. Journ., 1 90 1 ,...mass with water and was not too sticky for working. New Clay.-This was a soft, light buff-coloured clay,...the washed clay. NEW CLAY Tile-making Tests.-Tiles (No. 6) were made from the ' ' New ' ' :clay as received...but were still too weak for roofing use. The ' ' New ' ' clay appeared from these results to be deficient |  | | Book (edition) | | Edition Revised ani> Reset McGRAW-HILL BOOK COMPANY, NEW YORK AND LONDON lfi33 Inc. Copyright, 1933, bt...temptation this is temptation has been resisted. new and An effort has been made to introduce better...distribution-tite deposits of the Lake Superior region The ^*iron formations^āā The iron oresā Form of...Alunitizaiionā Metasomatic processes at Thames and Waihi ā Metasomatic processes at Tonopahā Marysville,...GkĀ»ld-quarts veins in andesiteā Transylvania Hauraki Peninsula, New Zealand El Oro, Mexico ^Black Mountains, ā |  | | Journal (volume) | | Bayldon, H. C Bavliss V. Pearson North Dundas Tin District Beil, -J. Critical Moisture in Tube-Mill Peed...Revolution in Mexico Blyth. C. R. H Report Boieo District of Bolivia, Chorolque Tin A. B. Reece Bolivia...Chamxiion Reef Chibougamou Mining District id.) Chibougamou Mining District H. C. Bayldon ip.t Chilean Mills...Cliina-Clay Industry of Cornwall Chorolque Tin District of Bolivia Chrome Ores Chrome Ores. Occurrence...Mining Practice Cleland, E.D Clifton- Morenci District, Mining Methodsin id.) Club, Mining and Metallurgical |  | | Journal (article/letter/editorial) | | thermodynamic model may be used to understand district Ag-distribution or as an exploration tool. Keywords:...(Czamanske and Hall 1975), the Santa Eulalia mining district, Mexico (Lueth et al. 2000), 1630 CHUTAS ET...in the GMM at high temperature. This study uses new experimental results and a thermodynamic model to...(1999), and galena from the Coeur dāAlene mining district, which is at least 99.99% PbS. Cations (Ag, Pb...Ī±-galena phase will cause a significant 2-phase region. In other words, as the temperature drops, compositionally |  | | Book (edition) | | AND ENTIRELY RESET McGRAW-HILL BOOK COMPANY, INc. NEW YORK: 370 SEVENTH A VENUE LONDON: 6 & 8 BOUVERIE...years, it has been found necessary to prepare a new edition of "Mineral Deposits. 11 The changes and...results of the re-examination of old deposits, and the new viewpoints thus obtained. Naturally this requires...disconcerting to n1easure the rapid accumulation of new facts and theories. In spite of the disturbed condition...coordinate rapidly the deposits of any given metal. Many new illustrations have been introduced. Owing to \Var |  | | Report (issue) | | WALCOTT, DIRECTOR GEOLOGY OF THE TONOPAH MINING DISTRICT, NEVADA BY JOSIAH EDw-ARD SPURR .. . =. .: Ā·...ā¢..... ........................ 94 Argentite, polybasite, and chalcopyrite in druses .................... . . . . . . . . . . . . . . . . . . . . . . . New York Tonopah shaft ................ _.............. PLATE I. l'opographic map of Tonopah mining district. .... .. ...........ā¢. ~................. II.... '. .......... Geologic map of Tonopah mining district ... ~ .. . . .. . . . . . . . . . . . . . . . |  | | Book | | Pennsylvania 16802 P E R G A M O N PRESS OXFORD SYDNEY Ā· NEW YORK Ā· PARIS Ā· Ā· TORONTO FRANKFURT Ļ
. Īŗ. ...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 (speciĀ 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 (edition) | | A LIBRARY CJLORiA Oi MARYMOUN'I BCARRYTOWNS NEW YORK 10592 ORE DEPOSITS A SERIES OF BOOKS IN...MacDiarmid late of State University College at Fredonia, New York ā a W. H. FREEMAN AND COMPANY San Francisco...Petaca District, New Mexico 266 11 IGNEOUS METAMORPHIC DEPOSITS 272 Central District, New Mexico...Springs District, Utah 283 12 HYPOTHERMAL DEPOSITS 293 Morro Velho, Brazil 297 Broken Hill, New South...346 Almaden, Spain 349 Pachuca-Real del Monte District, Mexico 15 TELETHERMAL DEPOSITS 354 362 Colorado |  | | Book (edition) | | part in all the folding and faulting that the district may undergo ; and if in the mass form of a bed...reference to the original structure of of the district, the area. mining districts occupy disturbed...number as simple fracturing, are produced. Where a district has been subjected to shearing, the metalliferous...however, not only has there been deposition in the region of the crushing, but generally much of the material...itself has been removed by solutions and replaced by new minerals. The structures of such lodes or ore bodies |  | | Book (edition) | | the folding and and if in the faulting that the district may undergo form of a bed, its outcrop will be...not conform to the outcrops of the rocks of the district, fracture, or with little some but will follow...as simple fracturing, are produced. Where a district has been subjected to shearing, the may have deposited...however, not only has there been deposition in the region of the crushing, but in generally much of the...itself has been removed by solutions and replaced by new minerals. The structures of such lodes or ore bodies |  | | Book (volume) | | Second Impression McGRAW-HILL BOOK COMPANY, Inc. NEW YORK: 370 SEVENTH AVENUE LONDON: 6 & 8 BOUVERIE...Hemisphere Tertiary ore-deposit belts of Colorado and New Mexico The Great Silver Channel 79. Tertiary...460 461 462 471 473 477 481 493 518 522 530 in New Me.xico Igneous rocks and uphfts of Utah 81. Chain...pressure limit Waihi mine. New Zealand. Upper termination of veins 87. 88. .... platinum district Mountains...of 93. 94. 95. 96. Haggerty mine, Encampment district, Wyoming Bonanza, Zacatecas, Mexico. Surface geology |
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