 | | Journal (article/letter/editorial) | | deposits: constraints from the Broken Hills deposit, Hauraki Goldfield, New Zealand Helen A. Cocker & Jeffrey...# Springer-Verlag 2012 Abstract The 7.1 Ma Broken Hills adularia-sericite Au–Ag deposit is currently...epithermal deposit in the Hauraki Goldfield of New Zealand. The opaque minerals include pyrite, electrum...the Hauraki Goldfield and elsewhere worldwide. Broken Hills ores also contain the less common minerals aguilarite...petrovskaite occur with high-fineness electrum. Broken Hills is the only deposit in the Hauraki Goldfield |  | | 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 |  | 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) | | Deposits of the Hauraki Goldfield, Coromandel Volcanic Zone, New Zealand ANTHONY B. CHRISTIE,†GNS Science...Science, P.O. Box 30-368, Lower Hutt 5040, New Zealand MARK P. SIMPSON, School of Geography, Geology and...1142, New Zealand ROBERT L. BRATHWAITE, GNS Science, P.O. Box 30-368, Lower Hutt, New Zealand JEFFREY...92019, Auckland Mail Centre, Auckland 1142, New Zealand Abstract Epithermal Au-Ag vein deposits of the...the Hauraki goldfield in the Coromandel volcanic zone, New Zealand, produced 320,000 kg Au and 1.5 million |  | | Journal (article/letter/editorial) | | Epithermal Province: The Hauraki Goldfield, New Zealand* JEFFREY L. MAUK,1,†CHRIS M. HALL,2 JOHN T....92019, Auckland Mail Centre, Auckland 1142, New Zealand 2 Department of Geological Sciences, University...85721 Abstract The Hauraki goldfield in the Coromandel volcanic zone contains approximately 50 adularia-sericite...the likely age of mineralization in the nearby Thames epithermal deposits. In the eastern province, adularia...40Ar/39Ar age of 8.29 ± 0.25 Ma, adularia from the Broken Hills deposit gives a preferred 40Ar/39Ar age of 7 |  | | Journal (article/letter/editorial) | | Gold-Silver Deposits of the Hauraki Goldfield, New Zealand: An Introduction DAVID A. JOHN†U.S. Geological...Hauraki goldfield on the Coromandel peninsula of the North Island of New Zealand (Fig. 1). The Hauraki goldfield...9 Ma) Coromandel volcanic zone (Skinner, 1986). Placer gold was first discovered near Coromandel township...discovery of Au-bearing quartz veins in 1861 at the site of the Kapanga mine (Fig. 1C). Prospecting elsewhere...elsewhere on the Coromandel peninsula resulted in the opening of mines at Thames in 1865, Karangahake |  | | 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 goldsilver deposit, Coromandel peninsula, which is hosted in late Miocene andesitic...to 30 m thick. Gold production was entirely from quartz veins. The mineralization is embedded in the following...with migration of a subduction zone past the Coromandel peninsula. This demonstrates that structural |  | Kullerud, KÃ¥re, Kotková, Jana, Å rein, VladimÃr, Drábek, Milan, Å koda, Radek (2018) Solid solutions in the system acanthite (Ag2S)–naumannite (Ag2Se) and the relationships between Ag-sulfoselenides and Se-bearing polybasite from the Kongsberg silver district, Norway, with implications for sulfur–selenium fractionation. Contributions to Mineralogy and Petrology, 173 (9) 71 doi:10.1007/s00410-018-1500-3 | Journal (article/letter/editorial) | | Sebearing polybasite from the Kongsberg silver district, Norway, with implications for sulfur–selenium...polybasite have been discovered at the Kongsberg silver district. The seleniumbearing minerals occur in two samples...samples from the northern part of the district, forming either single or polyphase inclusions together...sulfur and selenium. Keywords Kongsberg silver district · Selenides · Acanthite · Naumannite · Aguilarite...ÂAg2S0.5Se0.5, was described from the San Carlos Mine, Guanajuato, Mexico, considered as its type locality |  | | Journal (issue) | | ........ 337 by D. J. Mossman The Colorado Quartz mine, Mariposa County, California: a modem source....................................... 322 What’s new in minerals? (by D. Leicht) .......................advertising 602-299-5274 COVER: GOLD crystals on quartz, from Zlatna, Romania. The longest crystal measures...Show, and what better way to spend it than making new friends and playing tennis with your min eralogical...she and Brooks became part owners of the Old Yuma mine nearby. After a few years her strong love of minerals |  | Hamilton, Ayrton, Campbell, Kathleen, Rowland, Julie, Browne, Patrick (2017) The Kohuamuri siliceous sinter as a vector for epithermal mineralisation, Coromandel Volcanic Zone, New Zealand. Mineralium Deposita, 52 (2) 181-196 doi:10.1007/s00126-016-0658-8 | Journal (article/letter/editorial) | | for epithermal mineralisation, Coromandel Volcanic Zone, New Zealand Ayrton Hamilton 1 & Kathleen Campbell...deposits formed 16.3–5.6 Ma within the Coromandel Volcanic Zone, New Zealand. The sinter is associated with rhyolite...Auckland, Private Bag 92019, Auckland 1142, New Zealand 2 Institute of Earth Sciences and Engineering...University of Auckland, Private Bag 92019, Auckland, New Zealand deposits contain the high-temperature (>75 °C)...Palaeoenvironmental reconstruction . Coromandel Volcanic Zone . New Zealand Introduction Siliceous sinters |  | | Report (issue) | | Fluid-inclusion and geochemical studies at the Emperor gold mine, Fiji; Unpub. Ph.D. dissertation, University of..., 72 p. Ashley, R. P., 1974, Goldfield mining district, jLn Guidebook to the geology of four Tertiary...metals in silicified rocks of the Goldfield mining district, Nevada: U.S. Geological Survey Professional Paper...Paul, 1945, Quicksilver deposits of the Knoxville district, Napa, Yolo, and Lake Counties, California: California...1979, Geochemistry of hydrothermal ore deposits: New York, John Wiley and Sons, Inc., 798 p. 2nd ed.; |  | | Report (issue) | | 1986, Geology and development of the Hishikari mine: Mining Geology, v. 36 (2), no. 196, p. 117. Adams...Fluid-inclusion and geochemical studies at the Emperor gold mine, Fiji: Unpub. Ph.D. dissertation, University of...p. 9-24. Ashley, R. P., 1974, Goldfield mining district, in Guidebook to the geology of four Tertiary...metals in silicified rocks of the Goldfield mining district, Nevada: U.S. Geological Survey Professional Paper...Paul, 1945, Quicksilver deposits of the Knoxville district, Napa, Yolo, and Lake Counties, California: California |  | | Book | | decade, however, the need has been growing for a new, comprehensive index. Because the 14-year index suffered... Consequently, it was our decision to prepare a new index which is cumulative back to volume 1, fully...the 14-year index, and which is organized on a new plan. Nevertheless, all readers and users of the...the last ten years, and which has inspired this new effort. The current 25-year index is divided into...appears n Brief descriptive note, as in "What's New in Minerals?" p Photograph or other illustration |  | | Journal (article/letter/editorial) | | (1) wall rock, (2) quartz stockwork, (3) wall-rock breccias with crystalline quartz cement, (4) red chalcedony...massive crystalline quartz, (6) massive crystalline quartz breccias, (7) cockade-banded quartz-chlorite breccias...(8) banded quartz-chlorite, (9) banded quartz-adularia, (10) gray cryptocrystalline quartz stringer veins...veins, and (11) black quartz-molybdenite. Infill types 1, 2, and 3 occur throughout but are particularly...and rare bismuth minerals. Gangue minerals are quartz, adularia, chlorite, and calcite. Metal distribution |  | | Report (issue) | | States • • • ••• Australia • • • ••• • •• •• • New Zealand ••• ••• 0 • . •• • •• • .... • •• ••• ••...veins of which quartz is usually the principal gangue mineral, but more commonly in quartz or quartzose...little silver; maldonite, which, as occurring in the quartz of the Nuggetty reef, Maldon, Victoria (Australia)...California, and the west coast of the South Island of New Ze.a land. 1 ' r 7 • • The auriferous conglomerates...examples are the '' saddle reefs'' ·(auriferous quartz veins) in the Ordovician of the Bendigo gold'field |  | | Report (issue) | | MINING DISTRICTS Shady Run (Fondaway Canyon) Broken Hills Chalk Mountain Westgate IXL (Cox Canyon) La...Mountain, Rawhide, Big Kasock, Slate Mountain, and Broken Hills 7-1/2' quadrangles. Marty is trying to establish...Sidder, and others will assist with the other data. New interpretations and reinterpretations of seismic...completed the Verdi quadrangle in the Peavine district. Hal is mapping the Vista quadrangle, and Trobe...Paradise-Denio Resource Areas of the Winnemucca BLM District, which covers the northwestern portion of the |  | | Journal (article/letter/editorial) | | Wollastonite from famous Broken Hills, New South Wales. Next I discover exquisite clear quartz crystals, beautiful...Boulder Opal from Queensland, and Molybdenite from New South Wales, etc. At the bottom of the wonder parcel...huge Chalk Mines, amber, Galena, Cerussite, clear Quartz crystals, golden Fluorite, and many more. Receiving...has added to our exchange. A small parcel from New Zealand, however, really caught my fancy. For it contained...Cinnabar, Rhodonite from South Island, N. Z. Jasper, Thames Coast, Geyserite containing petrified reeds and |  | Van Alstine, R. E., Worl, R.G., Heyl, A.V., Trace, R.D., Parker, R.L., Griffitts, W.R., Sainsbury, C.L., Cathcart, J.B. (1976) Geology and resources of fluorine in the United States. Professional Paper 933. US Geological Survey doi:10.3133/pp933 | Report (issue) | | 1. 2. 3. 4. 5. A sbestos ore Lead ore, Balmat mine, N . Y. Chromite-chromium ore, Washington Zinc ore...not yet discovered or not currently profitable to mine. The mining of mineral deposits, once they are discovered...depleted, new deposits are found, new extractive technology and uses are developed, and new geologic knowledge...knowledge and theories indicate new areas favorable for exploration. This Professional Paper discusses.............................................. Broken Hills............................................ |  | | Journal (article/letter/editorial) | | particularly IS epithermal orebodies in any particular district, irrespective of whether or not paleosurface features...stockworks, disseminated bodies Silicification, quartz-sericite/illite Main gangue minerals Steep and...residual quartz, quartz-alunite Quartz, alunite, barite Silicification, quartz-adulariaillite Quartz, chalcedony...et al. (2003), Sillitoe and Hedenquist (2003) Quartz, calcite, manganoan carbonates, rhodonite, adularia...geothermal system, Taupo Volcanic Zone, North Island, New Zealand (see Simmons et al. 1993) The reactive H2S-bearing |  | | Report (issue) | | r Broken Hills D~striCt (3>. . . Hill~J Broken ·j. ·I I J/ . ·; ·!\ i ) . District __...__ -E~:~h~ "'B~k~~ ·PJ.lls district 'lies 'between the Fairview and Paradise l~nges.:• ~·:::~~~,·~~:_...Rawhide, and 2 miles west of - [ QuartZ Mountain (fig. 47)• ·(Quartz twun~y7 ' juat r -·- .-... '· ....production . ' . }: . _ u~ ::~~Â¥~~::4t-- J3,ro.ken Hills was first discovered in 1905 by .Jam.e~ M. ': Stratror...of the Silver Trailer mine near:cy- a ~:, ~: below the site of the Broken Hills mille. 1 i By tracing |  | | Journal (article/letter/editorial) | | epithermal), Dorozhnoe, Konechnoe, and Yakutskoe (Au-quartz). Dark rims around native gold are uytenbogaardtite...Au-skarn, Au-Cu volcanic-hosted massive sulfide, Au-quartz-sulfide, and other deposits. Keywords: Uytenbogaardtite...Au-skarn, Au-Cu volcanogenic massive sulfide, and Au-quartz-sulfide deposits (Zhen-jie et al. 1979; Castor...coexist stably are in contact and react to produce a new phase or an assemblage along their interface (Fisher...Nazareno, Pongkor (Greffie et al. 2002), and Broken Hills (Cocker et al. 2013), and, therefore, their |  | | Journal (article/letter/editorial) | | MINERALS WORLD NEWS ON MINERAL OCCURRENCES Items on new finds wanted. Please send them in. ALABAMA — Rose...Sylacauga, Talladega Co., Ala. ARIZONA—The old Yuma mine, famous for its wonderful specimens of vanadinite...am sending some wulfenite xls from the old Yuma mine in the Tucson Mts. These xls range anywhere from...single xls. This mine quit working about 1920 and was mainly a gold, silver, and lead mine." ARKANSAS—Billy...Creek bridge. I was unable to enter the titanium mine, so did not get any rutile. I finally was able to |  | | Report (issue) | | type................................ Epithermal quartz-alunlte Au................................. Hot............................... Types of potential new deposits...........................................totals, as shown in Table 1. The Cornstock Lode district in Storey and Lyon Counties is by far the largest...Cu) and Yerington (Cu, Ag, Au) In Lyon County; Broken Hills (Ag, Pb, Cu, Au, Zn), Nevada Scheelite (W, Pb...and Rawhide (Ag, Au, Pb, Cu) in Mineral County; Quartz Mountain (Ag, Pb, Au, W) in Nye County; Ragged |  | | Book | | Published in Canada by Firefly Books Ltd. Buffalo, New York Richmond Hill, Ontario Published in the United...120) Page 6: Mimetite (see page 139) Page 248: Quartz (amethyst variety), Erongo Mountains, Namibia *...destroyed in these changing conditions. In the process, new minerals and rocks are formed. RIGHT: Malachite...Earth’s crust are composed of just a few minerals; quartz and the feldspar group are the most abundant species...periods of stability PLANET | 114 San Carlos district, Chihuahua, Mexico * 8 x 4 x 2 om are uncommon |  | | Journal (article/letter/editorial) | | Wollastonite from famous Broken Hills, New South Wales. Next I discover exquisite clear quartz crystals, beautiful...Boulder Opal from Queensland, and Molybdenite from New South Wales, etc. At the bottom of the wonder parcel...huge Chalk Mines, amber, Galena, Cerussite, clear Quartz crystals, golden Fluorite, and many more. Receiving...has added to our exchange. A small parcel from New Zealand, however, really caught my fancy. For it contained...Cinnabar, Rhodonite from South Island, N. Z. Jasper, Thames Coast, Geyserite containing petrified reeds and |  | | Report (issue) | | minerals (dark gray to black areas), quartz (light gray areas), and quartz and a minor amount of illite (beige...white areas). Sample is from the Buckskin National Mine, Humboldt County, Nevada. Photograph by Peter Vikre...............................................Q26 Mine Waste Characteristics.............................showing selenium concentrations in coal samples, by region of the United States.............................earth may lead to new (or unconventional) sources of selenium, the discovery of new methods of extraction |
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Broken Hills Mine, Hikuai, Thames-Coromandel District, Waikato Region, New Zealand