 | | 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) | | The Originof Mineralization at the Tui Mine, Te Aroha, New Zealand,in the Light of StableIsotopeStudies*...StableIsotopeStudies* BRIAN W. ROBINSON Abstract The Tui mine lies within the old Hauraki gold field of the CoromandelPeninsula...andesiteswhich overlie Mesozoicgraywackes. The Tui mine paragenesisis divided into four stages: (1) pyrite...Present-day hot spring activity occurs at Te Aroha near to the Tui mine. The thermal water shows an oxygen isotope...derivedfrom the graywackes. Introduction TI•E Tui mine is situated within ton. In addition,the ChampionN |  | 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) | | Zone, New Zealand ANTHONY B. CHRISTIE,†GNS Science, P.O. Box 30-368, Lower Hutt 5040, New Zealand MARK...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...Hauraki goldfield in the Coromandel volcanic zone, New Zealand, produced 320,000 kg Au and 1.5 million kg Ag...sphalerite, galena, chalcopyrite, sulfosalt minerals, and Te- and Se-bearing minerals are present in some deposits |  | | 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) | | Adularia-Sericite Epithermal Gold-Silver Deposits in the Waihi-Waitekauri Region, New Zealand ANNE E....92019, Auckland Mail Centre, Auckland 1142, New Zealand Abstract Aeromagnetic, airborne radiometric...radiometric, and surface gravity data from the adularia-sericite epithermal province of the Hauraki goldfield have...Waitekauri-Maratoto area. Gravity data in the Waihi district define a unique, double-peaked, 50-gravity unit...data provides an outstanding case study of the district- to regional-scale geophysical characteristics |  | | 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 |  | | Journal (article/letter/editorial) | | silver-bearingquartz and calcitewith minor amountsof adularia, sericite,andsulfides.Quartzandcalciteare dominantthroughoutthe...quartzandcalcite calcite with minor amountsof adularia, sericite, and fromgold-andsilver-bearing hydrothermalveinsin...northwestof the Kushikino chemicalparametersof fluid. mine (Izawa et al., 1981). The vein systemsformedin closeconnectionwith...finelybandedtexture.The earlierprecipand an absence of sericite and kaolinitc. This zone mayrepresenta low-g...of the area, is characterizedby the presenceof sericite and absence of kaolinitc. Nearer the veins, montmorillonite |  | | Journal (article/letter/editorial) | | Province, New Zealand W. R. H. RaMsaY Armidale, N. S. W., Australia H. W. KOB~ Auckland, N e w Zealand The...Province, which constitutes N e w Zealand's major region of noble metal production (Fig. 1). The province...Corornandel ;1ThamesPeninsula /LTe Aroha AUCKLANJ i Central Volcanic ~ Region NORTH ISLAND SOUTH ISLAND...general geological map, Great Barrier Island, New Zealand TRUM'S conclusions, while more recently THOMI...the island on N. Z. Geological Survey Map of New Zealand, Sheet 2B, 1:250'000. He correlates the Andesitic |  | | Journal (article/letter/editorial) | | formation depth (Petrovskaya, 1965). In the 1980s–1990s, new approaches to interpret ing the sulfur isotope ratio...authors, silver deposits in the western Verkhoyansk region (Prognoz, Upper Men kechen, Mangazeya) can be...of ore for Russia’s silver industry. Discovery of new promising objects are required. Therefore, geological...helpful for developing the mineral resources of this region. EXPLORATION HISTORY The Mangazeya deposit is located...km south of Yakutsk in the western Verkhoyansk region. Silver has been mined primitively from a few separate |  | | Journal (article/letter/editorial) | | Institute of Nuclear Sciences, DSIR, Lower Hutt, New Zealand Abstract. Stratiform sulphide deposits which...virgin discovery. Mineralisation at the old Mt Molloy mine and the Dianne deposit is dominantly massive cupreous...carbonate and minor sericite. A narrow stockwork zone of pyrite-quartz-sericite alteration and veining...sulphide specimens from Mt Molloy were from the old mine dumps. Vein and stratabound pyritic samples were...O.K. mine was obtained from drill core whereas massive mineralisation was chosen from the mine dump material |  | | Journal (article/letter/editorial) | | 0016-7037/87/53.00 + .Jo Mercury ores from. the New Idria Mining District, California: Geochemical and stable isotope...1987) Abstract-The mercury ores of the New Idria Mining District are composed of metacinnabar and cinnabar...Metacinnabar from the main ore zone at the New Idria Mine contains Fe as a major impurity (0.96 to 2...sulfur are involved. INTRODUCTION THE NEW IDRIA MINING DISTRICT is located in the southern part of the...western Fresno County. The geology of the New Idria Mining District was studied extensively by ECKEL and MEYERS |  | | Journal (article/letter/editorial) | | GoldenCrossEpithermalGold-SilverDeposit,Waihi, New Zealand CORNELE. J. DE RONDE* Geology DepartmentUniversity...NewZealandGeologicalSur•etd, P.O. Box$0 $68, Lower Hurt, New Zealand Abstract The GoldenCrossepithermalgold-silverdepositis...the Taupo volcaniczone in the Waihi district,Coromandel Peninsula,New Zealand.Gold andsilverof economicgrades(1-20...previouslybeendescribedfromepithermal depositsin New Zealandandpossiblycontainorganicliquid(s). Oxygenisotopesof...the Golden the important Hauraki epithermal district of New Crosshydrothermal system.Variationsin the sysZealand |  | | 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...volcanic zone contains approximately 50 adularia-sericite epithermal Au-Ag deposits in a 200-km-long by...Northland and Colville volcanic arcs in the New Zealand region of the southwest Pacific. Introduction EPITHERMAL...Sillitoe, 2008), and the Hauraki goldfield of New Zealand (e.g., Christie et al., 2007). Work in these |  | | Journal (article/letter/editorial) | | steepdips (usuallymore than 80ø). In the Emperor mine area, the majority of the steeplodesare associated...1967a andb). Many of them lie The host rocksin the mine area are mainly nearwithin a narroweast-westzone...The fresholivinebasaltis greenishgray, massive, Mine Geology andmarkedlyporphyritic,with phenocrysts...plagioclase, andolivineup to 5 mmin diameter.The mine (Figs.3 and4) havebeendescribedin detailby groundmass... Three major fracturezoneshavebeen mappedin the mine workings,namely,the Shattershearzone, the HangingWall |  | | Journal (article/letter/editorial) | | and pyrite - accompanied by quartz, adularia, sericite, + (tourmaline, chlorite, carbonates, graphite)...research which ENADIMSA is carrying out in the region, and which aims to define a basic frame of reference...NNE-SSW trending edge of the allochtonous Malpica-Tui Unit, MTU (IGME 1984), forms part of a regional gold-bearing... EXPLAN A~-O-N. . . . . ~ . Goldprospeet ~r old mine - - - vein Typelolluvtal ~ Idetollotect I PRE~RIAN...rocks (indif. PREC.TO EARLY ~ IPALAEOZOIC Molpico--Tui Unit I Fault / formed, of the M T U or of the |  | | Report (chapter) | | service click here to receive free e-mail alerts when new articles cite this article Permission request click...subduction beneath the arc, less certain is whether the new crust is invariably created at a spreading ridge...modern island arcs, such as the Philippines, New Zealand and Japan. Another possible example is the cinnabar...cinnabar ore at Pinchi-Lake mercury mine in western Canada, which forms veins in dolomitic rocks and carbonated...volcanoes. Sulphur deposits at Vanua Lava in the New Hebrides 22 and at various localities within the |  | 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) | | Epithermal Au-Ag Deposit, Hauraki Goldfield, New Zealand Mark P. Simpson,1,†Michael F. Gazley,2,* Alistair...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...producer in the Hauraki goldfield, Coromandel, New Zealand. Production was mainly from the Maria and Welcome/Crown |  | | Journal (article/letter/editorial) | | none is expected. This acidsulfateandadularia-sericite (Haybaet al., 1985;Heald paper, therefore, concentrates...summitof a submerged positsof all ages,quartz-sericite alteration is accompanieddepthof about600m (MinnitiandBonavia...to 7.8 ppm Au aswell as extremely high quartz,sericite,chlorite,andcarbonate of alterationorigin contents...categorized ashighsulfidation on the basisof pub- Sericite-chlorite alteration surrounds the stockwork zones... SCIENTIFIC COMMUNICATIONS Boliden Hokuroku district Recsk Bousquet Brewer, Slate Belt Viejo Bossa |  | | Journal (article/letter/editorial) | | Blueschist-facies metapelites from the Malpica–Tui Unit (NW Iberian Massif): phase equilibria modelling...35042 Rennes cedex, France ABSTRACT The Malpica–Tui Unit (Galicia, NW Spain) records eclogite- and blueschist-facies...the evolution of the European Variscan belt. This region comprises exotic terranes forming a huge and complex...sequence of the westernmost basal unit, the Malpica–Tui Unit (MTU; Fig. 1), with particular attention to...for the Upper Sheet (Pazos Synform) of the Malpica–Tui Unit. The gradation of colours indicates the decrease |  | | 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 |  | | Report (volume) | | east-west, northwest, and northeast within the district. Hawkins (1982) postulated that the east-westÂ...scale east-west-trending faults in the Enfield Bell mine are are the Marlboro Canyon, Bell, and Ridge faults...upper- and lower-plate rocks in the Jerritt Canyon district is thought to be a high-angle fault. Exposure...cover in the district. REGIONAL STRATIGRAPHY Most of the rocks in the Jerritt Canyon district are Paleozoic...Kay, 1967) (Ordovician) Silicified rock GEORGIA TE H LIBRARY Thrust fault- sawteeth on upper plate |  | | Journal (article/letter/editorial) | | alkali leachingaccompaniedby high aluminaminerals(sericite,pyrophyllite, andalusite___ topaz) and anomalous...>30-km2peripheralzoneof low lso sericiteschists, chlorite-sericite schists, andandesitic volcanicrocks(b•80•,ho•...surface. volcanic and epiclastic rocks near the region of studyare correlatedwith the Virgilina sequenceby...Note that in the followingdiscussion, the term sericite will be used to refer to fine- grainedmuscoviteand...high aluminaminerals.The altered zone is located sericite, and sometimespyrite and epidote that within the |  | | Book | | Shikazono 2003 Elsevier Amsterdam - Boston - London - New York - Oxford - Paris San Diego - San Francisco -...R. (1919) On the origin of Kuroko of the Kosaka mine. J. Geol. Soc. Japan, 26, 107-132 (in Japanese)...alteration: a case study on the Seigoshi-Ugusu district. central Japan ....................... 1.4.2.6.................................... 1.4.4. Se- and Te-type Au-Ag deposits ...............................interaction with carbonaceous matter. In the Kitakami district (North Honshu) gold vein-type (mesothermal-type) |  | | | | NORTH ISLAND NEW ZEALAND Poor Kn1ght1 Is • . ,, r ,n H~n & C h1ck...Rivt~r I'. MY OF East C,pe Pf.NEW PLYMO • Cil.pe Eimo C • Portl.lfld I MY Secretar)'...ISLAND f Pq,1 Pt., 1~s II t I SOUTH ISLAND NEW ZEALAND +I s University College Cardiff Library...' _____ TELE - . _, • The Geology of New Zealand Volume 2 •• J-----~---.. ~ ::,,::::j::~....Associate Editors: G. R. Stevens, M. T. Te Punga New Zealand Geological Survey, Department of Scientific |  | | Book (volume) | | NORTH ISLAND NEW ZEALAND Poor Kn1ght1 Is • . ,, r ,n H~n & C h1ck...Rivt~r I'. MY OF East C,pe Pf.NEW PLYMO • Cil.pe Eimo C • Portl.lfld I MY Secretar)'...ISLAND f Pq,1 Pt., 1~s II t I SOUTH ISLAND NEW ZEALAND +I s University College Cardiff Library...' _____ TELE - . _, • The Geology of New Zealand Volume 2 •• J-----~---.. ~ ::,,::::j::~....Associate Editors: G. R. Stevens, M. T. Te Punga New Zealand Geological Survey, Department of Scientific |
|
