| | 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) | | 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) | 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...gained in adularia-quartz−rich rocks close to the Waitekauri fault. Other major elements are preferentially | | | 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 | | 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,† 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 | | | 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) | 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 | | 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 | | Brathwaite, R., Simpson, M., Faure, K., Skinner, D. (2001) Telescoped porphyry Cu-Mo-Au mineralisation, advanced argillic alteration and quartz-sulphide-gold-anhydrite veins in the Thames District, New Zealand. Mineralium Deposita, 36 (7) 623-640 doi:10.1007/s001260100182 | Journal (article/letter/editorial) | quartz-sulphide-gold-anhydrite veins in the Thames District, New Zealand Received: 28 August 2000 / Accepted: 2 April...on the northeastern margin of the Thames district, New Zealand. The geological setting is Jurassic greywacke...Sciences Ltd., P.O. Box 31-312, Lower Hutt, New Zealand E-mail: B.Brathwaite@gns.cri.nz Present address:...University of Auckland, Private Bag 92019, Auckland, New Zealand temperatures (450 to >600 °C). These hypersaline...selvages from quartz-gold veins in the Thames district. Introduction A porphyry Cu-Mo-Au prospect was | | | 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 | | Simpson, C. J., Scott, R. J., Crawford, A. J., Meffre, S. (2007) Volcanology, geochemistry and structure of the Ordovician Cargo Volcanics in the Cargo – Walli region, central New South Wales. Australian Journal of Earth Sciences, 54 (2) 315-352 doi:10.1080/08120090701221706 | Journal (article/letter/editorial) | Ordovician Cargo Volcanics in the Cargo – Walli region, central New South Wales C. J. SIMPSON1*, R. J. SCOTT2...dacites or monzonites, suggesting that the Cargo region was rapidly exhumed following emplacement of the...Volcanic Belt in the Lachlan Fold Belt of central New South Wales preserves a thick succession of dominantly...the various belts of Ordovician volcanic rocks in New South Wales (Glen et al. 1998; Pogson & Watkins 1998;...Volcanics. Core from drilling by Newcrest Ltd and Golden Cross Resources NL in the vicinity of the Cargo porphyry | | Boomeri, Mohammad, Moradi, Rahele, Stein, Holly, Bagheri, Sasan (2019) Geology, Re-Os age, S and O isotopic composition of the Lar porphyry Cu-Mo deposit, southeast Iran. Ore Geology Reviews, 104. 477-494 doi:10.1016/j.oregeorev.2018.11.018 | Journal (article/letter/editorial) | its various 34 igneous rocks have become a key region for both petrological and tectonic studies (e.g...youngest fault system strikes NE-SW and clearly 116 cross-cuts all mineralization and the LIC (Fig. 4). 117...veinlets. 288 Based on petrographic examination and cross-cutting relationships, at least five main groups...421 δ18O values (Field and Fifarek, 1985). This new hydrothermal water could sharply increase the 18O...Our thanks to professor David Lentz (University of New Brunswick) who provided feedback on the research | | | 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 • • 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...both gold and silver. T h u s , in the Kongsberg district the proportion of silver to gold is given a s | | | Journal (article/letter/editorial) | Alteration and Mineralization in the Comstock District, Nevada DONALD M. HUDSON† 1540 Van Petten Street...metal deposits of the world-renowned Comstock district of western Nevada constitute one of several superimposed...superimposed Miocene hydrothermal systems. In the district, Mesozoic metasedimentary and igneous rocks are...kaolinite alteration exposed at the periphery of the district may be linked to preore alteration near the paleowater...elsewhere in the district. Pliocene to Holocene reactivation of faults has disrupted the district, redistributing | | | Journal (volume) | Geologist C. A. LOGAN, District Mining Engineer C. McK. Laizure, District W. Burling Tucker, Reid...Engineer District Sampson, Assistant Mining Engineer District Engineer Chas. V. Averii.l, District Mining...Mining Engineer J. C. O'Brien, District Mining Engineer George John Gary, Mineral Technologist L. ... CONTENTS Page REPORTS OF DISTRICT MINING ENGINEERS Sacramento Field District 6 7 Mines and Mineral Resources...now available is appended hereto, and the names of new bulletins will be added in the future as they are | | | Journal (volume) | A. Logan, District Mining Engineer C. Jenkins, Chief Geologist McK. Laizure, District W. Burling...Engineer District Sampson, Assistant Mining Engineer District Engineer Chas. V. Averill, District Mining...OF CONTENTS Page DISTRICT REPORTS OF MINING ENGINEERS—— 7 Redding Field District 7 Sacramento Field...Field District 7 San Francisco Field District 7 Los Angeles Field District i) Current Mining Activity...now available is appended hereto, and the names of new bulletins will be added in the future as they are | | | 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 | | | Journal (article/letter/editorial) | D. R. Lentz Department of Geology, University of New Brunswick, Fredericton, NB, Canada Present address:...equivalents of lithologies shown by open symbols halo, augite, hornblende and plagioclase have been replaced...as parallel veins, however, locally, they show cross cutting relationship. Some of the veins were filled...after the first stage. This is consistent with cross cutting relationships of these veins, which suggest...alteration types were carried out at the University of New Brunswick, Fredericton, NB Canada. Operating conditions | | | Report (issue) | OR PROFE SIONAL PAPER 68 THE ORE DEPOSITS OF NEW MEXI.CO BY WALDEMAR LINDGREN, LOUIS C. GRATON AND...PRQ)tESSIONAL PAPER 68 T·H E ORE DEPOSITS O.F NEW MEXICO.. . . ., .,· ;,.: BY WALDEMAR LINpGREN...J,5 Historical sketch of mining and smelting in New Mexico....... . . . . . . . . . . . . . . . ............... . . , ... -.. . Rio Hondo. (Twining) district . . . . . . . . . . . . . ......................::.:::.::: ::: :::: :: ':::: :: ::::. Red River district. ..................•......... -~ . . ........ | | | Journal (article/letter/editorial) | Andesite is composed mainly of hornblende-hypersthene-augite andesite of Pleistocene © 2010 The Authors Resource...Institute of Geological and Nuclear Sciences, Ltd, New Zealand. The 87Sr/86Sr ratios are reported relative to...Institute of Geological & Nuclear Sciences Ltd, New Zealand. Abbreviations: Adu, adularia; Cal, calcite;...Survey Team (1955) On the Subterranean heat in Noya district, Oita prefecture. Bull. Geol. Surv. Jpn., 6, 551–...evolution of the Waiotapu geothermal system, New Zealand, based on the chemical and isotopic composition | | | Book (volume) | acquarie Volcanic Arc, Eastern Lachlan Orogen in New South Wales, Australia: A Review 71 Mike Porter and...Ertsberg Diorite, G unung Bijih (Ertsberg/G rasberg) District, West Papua, Indonesia Kurt C Friehauf, Spencer...of Porphyry Cu-Mo-Ag Deposits in the Collahuasi District,N orthern Chile Glertton J. Masterman, David R.............. 207 Geology of the Bingham Mining District, Salt Lake County, Utah Charles H. Phillips, Edward...Porphyrv Cu-Mo Deposits of the Highland Valley District, Guichoti Creek Batholith^ British Columbia, Canada | | | Report (volume) | and 1970s were decades of mineral exploration and mine development unprecedented in the northwestern Cordillera...the 30 years since the opening of the Bethlehem mine in late 1962, porphyry mines in British Columbia...stability and renewed development , activity. Relatively new discoveries of ‘“‘porphyry gold’’ and related deposits...following the last major thermal disturbance in the region, rather than the actual age of intrusion. Research...for survival of the Bell mine in fascinating detail. The paper on the Brenda mine presents insights into | | | Conference Proceedings (Volume) | Cover photograph: View of the Aitik open pit copper mine in the very north of Sweden. Mining operations started...regional scale 3D-model of the Skellefte mining district, northern Sweden ..............................VHMS-type deposits, Kristineberg area, Skellefte District, Sweden . . ....................................epithermal Au-Ag mineralisation at Golden Cross, Hauraki Goldfield, New Zealand ................ 70 A.B.... Christie & R. Carver A new storage approach for 3D Modeling ..................................... |
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