 | 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) | | Hydrologic Evolution of the Golden Cross Epithermal Au-Ag Deposit, New Zealand MARK P. SIMPSON,† JEFFREY...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...temporal zonation around veins, as defined along three cross sections (1,000 m long × 450 m deep), located 200...conditions. Veins and alteration minerals at Golden Cross formed in the shallow part (<400 m) of a hydrothermal |  | | 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...alteration and vein minerals along a 3-km-long composite cross section through the area. Most host rocks are intensely...et al., 2003; Comstock: Hudson, 2003; Favona, New Zealand: Simpson and Mauk, 2007). Many papers describe...prospects in the Waitekauri area of the southern Hauraki goldfield, North Island, New Zealand (Figs. 1, 2) |  | | 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) | | 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...display distinct zonation along four subsurface cross sections (800 m long × 450 m deep) that transect...for veins. The veins at Favona, Martha, and Golden Cross (Empire vein), combined with a resource at Karangahake |  | | Journal (article/letter/editorial) | | Composition of Altered Rocks at the Golden Cross Epithermal Au-Ag Deposit, New Zealand JEFFREY L. MAUK† AND MARK...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...primary control of whole-rock geochemistry at Golden Cross, as at other volcanic-hosted epithermal deposits...geochemical zonation patterns identified at Golden Cross are very similar to those at other epithermal |  | | 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 |  | 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) | | Calcite Veins in the Golden Cross Low-Sulfidation, Epithermal Au-Ag Deposit, New Zealand STUART F. SIMMONS...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... Private Bag, 92019, Auckland, New Zealand Abstract At Golden Cross, andesitic lavas and volcaniclastic |  | | Journal (article/letter/editorial) | | constraints from the Broken Hills deposit, Hauraki Goldfield, New Zealand Helen A. Cocker & Jeffrey L. Mauk &...rhyolite-hosted epithermal deposit in the Hauraki Goldfield of New Zealand. The opaque minerals include pyrite...other adulariasericite epithermal deposits in the Hauraki Goldfield and elsewhere worldwide. Broken Hills...electrum. Broken Hills is the only deposit in the Hauraki Goldfield where uytenbogaardtite and petrovskaite...92019, Auckland Mail Centre, Auckland 1142, New Zealand e-mail: J.Mauk@auckland.ac.nz S. D. C. Rabone |  | | Journal (article/letter/editorial) | | mines, and application to the Martha Au–Ag mine, Waihi, New Zealand Devin N. Castendyk a a,* , Jeffrey L...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...nuisances depending on lake water chemistry. Many recent mine management strategies favor 0883-2927/$ - see front...into public amenities that will exist long after mine closure, as recreational areas, theme parks, scientific |  | Vidal, Conrado Permuy, Guido, Diego M., Jovic, Sebastián 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 Au–Ag 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 Au–Ag 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 Au–Ag 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 Au–Ag metallogenic province. Since ∼2000, the region has produced 4.9 Moz |  | | Journal (article/letter/editorial) | | Gold-Silver-Base Metal Sulfide-Quartz Vein System, New Zealand: Temperature and Salinity Controls on Electrum...Nuclear Sciences, P.O. Box 31312, Lower Hutt, New Zealand Abstract The large, andesite-hosted quartz vein...volcanic zone and associated Hauraki goldfield in the North Island of New Zealand (Fig. 1). At Waihi, an extensive...(1924). Recent exploration and mining have provided new data and sample material for geological and geochemical...steam-heated ground water. 50km Main map AUCKLAND HAURAKI GOLDFIELD WAIHI NORTH ISLAND A UR HA WELLINGTON |  | Zhai, Wei, Sun, Xiaoming, Sun, Weidong, Su, Liwei, He, Xiaoping, Wu, Youliang (2009) Geology, geochemistry, and genesis of Axi: A Paleozoic low-sulfidation type epithermal gold deposit in Xinjiang, China. Ore Geology Reviews, 36 (4) 265-281 doi:10.1016/j.oregeorev.2009.04.003 | Journal (article/letter/editorial) | | Technology of China, Heifei, 230026, PR China e Axi Gold Mine, Yining, Xinjiang, 835000, PR China b c a r t i...Ore minerals are native gold, electrum, pyrite, marcasite, arsenopyrite, hematite, limonite, and trace amounts...Kelian in Indonesia, Golden Cross in New Zealand, Ladolam and Porgera in Papua New Guinea, Chinkuashih...western Tianshan orogenic belt in Xinjiang Autonomous Region, China. The wall rocks of the deposit are subaerial...and identifying guidelines for exploration in the region. 2. Geological setting The Axi gold deposit is |  | John, D. A., Hofstra, A. H., Fleck, R. J., Brummer, J. E., Saderholm, E. C. (2003) Geologic Setting and Genesis of the Mule Canyon Low-Sulfidation Epithermal Gold-Silver Deposit, North-Central Nevada. Economic Geology, 98 (2) 425-463 doi:10.2113/gsecongeo.98.2.425 | Journal (article/letter/editorial) | | Phelps Dodge Tyrone, Inc., P.O. Box 571, Tyrone, New Mexico 88065 AND ERIC C. SADERHOLM * Newmont Gold...Company, Yanacocha, Peru Abstract The Mule Canyon mine exploited shallow, low-sulfidation, epithermal Au-Ag...alteration types contain abundant pyrite and/or marcasite ± arsenopyrite. Field relations indicate that...consist of disseminated and vesicle-filling pyrite, marcasite, and arsenopyrite in argillically altered or weakly...pyrite overgrowths on earlier-formed pyrite and marcasite. Open-space filling ores include narrow stockwork |  | Davies, A. G. S., Cooke, D. R., Gemmell, J. B., van Leeuwen, T., Cesare, P., Hartshorn, G. (2008) Hydrothermal Breccias and Veins at the Kelian Gold Mine, Kalimantan, Indonesia: Genesis of a Large Epithermal Gold Deposit. Economic Geology, 103 (4) 717-757 doi:10.2113/gsecongeo.103.4.717 | Journal (article/letter/editorial) | | Hydrothermal Breccias and Veins at the Kelian Gold Mine, Kalimantan, Indonesia: Genesis of a Large Epithermal...formed over a large vertical interval (>600 m). New sulfur isotope and fluid inclusion data are provided...outside of the immediate vicinity of the Kelian mine area. Their minimum thickness is 650 m. The base...(Ferguson, 1986; van Leeuwen et al., 1990; local mine terminology) would be better described as plagioclase-hornblende...kao = kaolinite, LS = low sulfidation, mar = marcasite, pyr = pyrite, pol = polybasite, ppyg = proustite-pyrargyrite |  | Li, Su-Ning, Ni, Pei, Bao, Tan, Wang, Guo-Guang, Chi, Zhe, Li, Wen-Sheng, Zhu, Ren-Zhi, Dai, Bao-Zhang, Xiang, Hong-Liang (2020) Geological, fluid inclusion, and H–O–S–Pb isotopic studies of the Xiaban epithermal gold deposit, Fujian Province, southeast China: Implications for ore genesis and mineral exploration. Ore Geology Reviews, 117. 103280 doi:10.1016/j.oregeorev.2019.103280 | Journal (article/letter/editorial) | | lesser amounts of galena, Fe-rich sphalerite, and marcasite, all of which are 22 associated with sericitic...affected the study area, means that the surrounding region should be considered prospective for this 40 ...intrusive granitoids (Zhou et al., 2006). This region also hosts a 62 large belt of epithermal mineralization...government- 74 led geological exploration of the region. The area currently hosts more than a dozen gold...of varying sizes (Fig. 2) and is known as the “Golden Triangle”, one of four key gold exploration 76 |  | Xiao, ChangHao, Wang, QingFei, Li, GongJian, Zhou, XingZhi, Zhao, Yan (2017) Subduction-related hot spring-type gold mineralization in the central Tengchong block, southwestern China. Ore Geology Reviews, 90. 987-997 doi:10.1016/j.oregeorev.2016.12.011 | Journal (article/letter/editorial) | | 2005; 37 Peters, 1990), Porgera and Lihir in Papua New Guinea (Richards et al., 1991; White et 38 al....the Rehai geothermal region in the Tengchong 55 block. In this geothermal region, the ancient Lianghe...and the Lianghe deposit in the Rehai geothermal region, central 58 Tengchong block were investigated...zone of Indian plate. The oldest stratum in the region is the Proterozoic 68 Gaoligongshan Group, consisting...springs in the Rehai geothermal region 87 The Rehai geothermal region, located ~11 km southwest of Tengchong |  | | Journal (article/letter/editorial) | | epithermal gold mineralization in the Rosario–Bunawan district, East Mindanao Ridge, Philippines Jochen Kolb...Springer-Verlag 2009 Abstract The Rosario–Bunawan district is situated about 200 km north of Davao City,...Southern Philippines. Gold is produced from the Co-O mine, containing about 2,034,000 t of ore at 10.9 g/t...mineralization in the Rosario–Bunawan district and the Co-O mine is confined to narrow (0.2–4 m) low-sulfidation...near horizontal N–S-oriented vein opening (D2). New D2 extensional shear or shear veins formed in the |  | | Journal (article/letter/editorial) | | carbonate rocks from the Bingham Canyon, Utah mining district. Replacement of the carbonate rock appears to...fractures on the No. 6 level of the Highland Boy mine, Bingham Canyon, Utah. The mineralized fractures...replacement ore on the 5.5-level of the Highland Boy mine, Bingham Canyon, Utah. Unreplaced zones are white...carbonate-replacement mineralization. Numerous cross-linking, mineralized fractures are also evident...Murray vein 950-level Tonopah-Extension mine, Tonopah mining district. Bands of alternating sulfides and rhodochrosite |  | Andrada de Palomera, Pablo, van Ruitenbeek, Frank J.A., van der Meer, Freek D., Fernández, Raúl (2012) Geochemical indicators of gold-rich zones in the La Josefina epithermal deposit, Deseado Massif, Argentina. Ore Geology Reviews, 45. 61-80 doi:10.1016/j.oregeorev.2012.01.001 | Journal (article/letter/editorial) | | et al., 1999), which is recognized as a valuable region for gold exploration. Most of the Au ⁎ Corresponding...investigated by drilling. The aim of drilling is to cross the mineralized veins at different vertical levels;...is always anomalous. Therefore, each deposit or district should be studied separately to know which elements...the La Josefina district (Fig. 1). However, the predominant formation in the district, and the only one...area. Boreholes were drilled sub-parallel to the cross sections, towards SW. P. Andrada de Palomera et |  | | Journal (article/letter/editorial) | | instrument operated in standard mode integrated with New Wave Research (ESI) UP-193FX ArF excimer laser-ablation...rock-hosted gold deposits are characteristic for this region. Among the latter, the Khan Krum deposit is outstanding...outstanding because it is the oldest gold mine in Europe, operating from 1,500 to about 600 BC (Popov et...3 vol.%), disseminated electrum, pyrite, and marcasite. The lowermost orebody developed immediately above...orebodies of quartz, disseminated electrum, and pyrite, cross-cutting the stratiform-like orebodies, and (3) high-angle |  | | 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 |  | | Book | | proportion of the accumulating information. This new book represents an attempt to address this major...of gold mineralization. For access to a wealth of new information the reader is encouraged to tum to the...demand for gold in the 1980s has opened up exciting new avenues of research and generated a wealth of hard...James Crocket is a graduate of the University of New Brunswick, Oxford University, and the Massachusetts...Manchester in 1973 (Ph.D.) and was then employed as a mine and exploration geologist by Falcon Mines Ltd in |  | | 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 |  | Zamanian, Hassan, TaleFazel, Ebrahim, Hayatalgheybi, Masome, Samani, Bahram Agha Ebrahimi, Harris, Chris (2020) Geochemical, fluid inclusion and O–H–S isotope studies of the Milajerd Au-polymetallic prospect, Central Iran: Implications for ore genesis. Ore Geology Reviews, 120. 103444 doi:10.1016/j.oregeorev.2020.103444 | Journal (article/letter/editorial) | | sphalerite, galena, pyrite, arsenopyrite, and marcasite. The principal gangue minerals are quartz, calcite...poorly-known metallogenic belt. This study presents new geological, geochemical, fluid inclusions and H–O–S...Milajerd prospect are exposed extensively through the district and consist of andesite, basalt, dacite, trachyandesite...field (Fig. 7d). Volcanic rocks from the Milajerd district define a typical calc-alkaline trend on an AFM...edifices are common and well developed within the ore district. The fractures are predominantly NW-trending and |
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Golden Cross Mine, Waitekauri, Hauraki District, Waikato Region, New Zealand