 | Cave, Ben J., Pitcairn, Iain K., Craw, Dave, Large, Ross R., Thompson, Jay M., Johnson, Sean C. (2017) A metamorphic mineral source for tungsten in the turbidite-hosted orogenic gold deposits of the Otago Schist, New Zealand. Mineralium Deposita, 52 (4) 515-537 doi:10.1007/s00126-016-0677-5 | Journal (article/letter/editorial) | | turbidite-hosted orogenic gold deposits of the Otago Schist, New Zealand Ben J. Cave 1 & Iain K. Pitcairn 2 & Dave...Abstract The orogenic gold deposits of the Otago Schist, New Zealand, are enriched in a variety of trace elements...metamorphic recrystallisation of detrital rutile to titanite releases significant amounts of W (potentially...Scheelite from syn-metamorphic veins at Fiddlers Flat and Lake HÄwea shows distinct differences in composition...scheelite from late-metamorphic veins at the Macraes Mine, the latter of which is enriched in REEs, Y |  | | Journal (article/letter/editorial) | | sedimentary basin, New Zealand D. Craw Ć , D.A. Chappell Geology Department, University of Otago, P.O. Box 56...Dunedin, New Zealand Received 6 April 1999; accepted 5 August 1999 Abstract River sediments at Macraes Flat...Flat, east Otago have formed in a tectonically active depression in the Otago Schist basement adjacent...HydeâMacraes Shear Zone crosses the depression, and this shear zone hosts the Macraes gold mine. The...Sulphide minerals were eroded and deposited in the Macraes Flat river sediments at least 28,000 years ago. The |  | | Journal (article/letter/editorial) | | a ductile-brittle shear zone, Macraes Mine, Otago Schist, New Zealand Received: 4 December 1997 / Accepted:...facies schist which hosts the Macraes Mine in East Otago, New Zealand has been pervasively altered by...section perpendicular to foliation. Metamorphic titanite has been replaced by rutile, and epidote has been...reduction and recrystallization of micas to form a new foliation. Muscovite has grown at the expense of...Department, University of Otago, PO Box 56, Dunedin, New Zealand P.V. Angus Macraes Mining Co. Ltd, PO Box |  | | Journal (article/letter/editorial) | | rock, Macraes gold mine, Otago Schist, New Zealand D. Craw * Geology Department, University of Otago, PO...9001 Dunedin, New Zealand Received 7 June 2001; accepted 31 May 2002 Abstract The Macraes gold deposit...deposit in the Otago Schist, New Zealand, formed during late metamorphic fluid flow through a lower greenschist...reserved. Keywords: Gold; Metamorphism; Graphite; New Zealand 1. Introduction Most schist-hosted mesothermal...1986). In contrast, the Macraes gold mine in the Otago Schist of New Zealand has volumetrically minor |  | | Journal (article/letter/editorial) | | refractory ore in an orogenic gold deposit, Macraes mine, New Zealand Received: 5 October 2004 / Accepted:...March 2005 Springer-Verlag 2005 Abstract The Macraes mine is hosted in an orogenic (mesothermal) gold...gold deposit in metasedimentary rocks of the Otago Schist belt. Much gold occurs within altered schist with...Geology Department, University of Otago, PO Box 56, Dunedin, New Zealand E-mail: dave.craw@stonebow.otago...on refractory ore at the Macraes mine of southern New Zealand. The Macraes deposit is diïŹerent from most |  | PITCAIRN, I, TEAGLE, D, KERRICH, R, CRAW, D, BREWER, T (2005) The behavior of nitrogen and nitrogen isotopes during metamorphism and mineralization: Evidence from the Otago and Alpine Schists, New Zealand. Earth and Planetary Science Letters, 233 (1) 229-246 doi:10.1016/j.epsl.2005.01.029 | Journal (article/letter/editorial) | | mineralization: Evidence from the Otago and Alpine Schists, New Zealand Iain K. Pitcairna,1, Damon A.H....Department of Geology, University of Otago, PO Box 56, Dunedin, New Zealand d Department of Geology, University...nitrogen remain. The Otago and Alpine Schists in the South Island of New Zealand comprise a large, comparatively...from a number of crustal transects through the Otago crust. The range of y15N values for mica and whole...whole rock concentrations, indicates that for the Otago and Alpine T Corresponding author. Tel.: +44 23 |  | Allibone, Andrew, Jones, Philip, Moore, Jonathan, Craw, Dave, MacKenzie, Doug, Blakemore, Hamish (2017) Kilometre-scale structural setting of ore shoots in the Frasers gold deposit, Macraes mine, New Zealand. Ore Geology Reviews, 89. 1107-1121 doi:10.1016/j.oregeorev.2017.05.019 | Journal (article/letter/editorial) | | ore shoots in the Frasers gold deposit, Macraes mine, New Zealand Andrew Allibone, Philip Jones, Jonathan...ore shoots in the Frasers gold deposit, Macraes mine, New Zealand, Ore Geology Reviews (2017), doi: http://dx...ore shoots in the Frasers gold deposit, Macraes mine, New Zealand Andrew Allibonea, Philip Jonesb, Jonathan... Wanaka 9343, New Zealand b Oceana Gold, 22 McLaggan Street, Dunedin 9016, New Zealand c Department of... University of Otago, PO Box 56, Dunedin 9054, New Zealand Abstract The Hyde-Macraes Shear Zone in southern |  | | Journal (article/letter/editorial) | | zone, Macraes mine, New Zealand Phaedra Upton â, Dave Craw Geology Department, University of Otago, PO...PO Box 56, Dunedin, New Zealand Received 14 June 2007; received in revised form 3 October 2007; accepted...Abstract The HydeâMacraes Shear Zone (HMSZ) is a mineralised low-angle shear within the Otago Schist traceable...of the HMSZ at the Macraes mine. A. Photograph of the main active pit at Macraes mine (2005), showing the...Inset: location map showing the Macraes mine in the South Island of New Zealand. B. Outcrop sketch from the |  | Allibone, Andrew, Jones, Philip, Blakemore, Hamish, Craw, Dave, MacKenzie, Doug, Moore, Jonathan (2018) Structural Setting of Gold Mineralization within the Hyde-Macraes Shear Zone, Southern New Zealand. Economic Geology, 113 (2) 347-375 doi:10.5382/econgeo.2018.4553 | Journal (article/letter/editorial) | | Mineralization within the Hyde-Macraes Shear Zone, Southern New Zealand Andrew Allibone,1,â Philip Jones...758, Wanaka 9343, New Zealand Gold, 22 McLaggan Street, Dunedin 9016, New Zealand of Geology, University...University of Otago, P.O. Box 56, Dunedin 9054, New Zealand Abstract The 10 Moz Macraes gold deposit in...in southern New Zealand is hosted within a 100-m-thick slice of weakly altered schist and the overlying...base of the >1.5-km-thick, gently dipping, Hyde-Macraes shear zone. The term âHanging-wallâ reflects the |  | | Journal (article/letter/editorial) | | dam, Otago, New Zealand D. Craw Geology Department, UniĂersity of Otago, PO Box 56, Dunedin, New Zealand...chemistry monitoring of a large mine tailings impoundment dam at the Macraes mine provided a site for a 5-year...study of progressive waterârock interaction with Otago Schist greenschist facies schist debris. Water of...experimental observations and other mine sites because the Macraes mine chlorite is intimately intergrown...rights reserved. Keywords: Environmental geology; Mine drainage; Chlorite; Calcite; Pyrite; Chemical weathering |  | Goodwin, Nicholas R. J., Burgess, Ray, Craw, Dave, Teagle, Damon A. H., Ballentine, Chris J. (2017) Noble gases fingerprint a metasedimentary fluid source in the Macraes orogenic gold deposit, New Zealand. Mineralium Deposita, 52 (2) 197-209 doi:10.1007/s00126-016-0648-x | Journal (article/letter/editorial) | | metasedimentary fluid source in the Macraes orogenic gold deposit, New Zealand Nicholas R. J. Goodwin 1 & Ray...Berlin Heidelberg 2016 Abstract The world-class Macraes orogenic gold deposit (âŒ10 Moz resource) formed...of a metasedimentary schist belt in southern New Zealand. Mineralising fluids, metals and metalloids were...higher than typical magmatic/mantle fluids. The Macraes mineralising fluids were compositionally variable...minor meteoric incursion cannot be discounted. The Macraes deposit formed in a metasedimentary belt without |  | Scanlan, Emma J., Scott, James M., Wilson, Victoria J., Stirling, Claudine H., Reid, Malcolm R., Le Roux, Petrus J. (2018) In Situ 87Sr/86Sr of Scheelite and Calcite Reveals Proximal and Distal Fluid-Rock Interaction During Orogenic W-Au Mineralization, Otago Schist, New Zealand. Economic Geology, 113 (7) 1571-1586 doi:10.5382/econgeo.2018.4603 | Journal (article/letter/editorial) | | During Orogenic W-Au Mineralization, Otago Schist, New Zealand Emma J. Scanlan,1,â ,* James M. Scott,1...of Otago, Dunedin 9054, New Zealand of Chemistry, University of Otago, Dunedin 9054, New Zealand for...Trace Element Analysis, University of Otago, Dunedin 9054, New Zealand 4Department of Geological Sciences...W-Au mineralization occurring in the Otago Schist in New Zealand. Scheelite Sr isotope populations, regardless... while scheelite 87Sr/86Sr values in the Hyde-Macraes shear zone and the Barewood and Bendigo deposits |  | MacKenzie, Doug, Farmer, Lauren, Moore, Jonathan, Craw, Dave (2017) Contrasting coeval paragenesis of gold and scheelite in an orogenic hydrothermal system, Macraes mine, New Zealand. Ore Geology Reviews, 80. 645-657 doi:10.1016/j.oregeorev.2016.08.011 | Journal (article/letter/editorial) | | scheelite in an orogenic hydrothermal system, Macraes mine, New Zealand Doug MacKenzie a, Lauren Farmer a, Jonathan...of Otago, PO Box 56, Dunedin 9054, New Zealand OceanaGold Ltd, 22 McLaggan St, Dunedin 9016, New Zealand...The Macraes deposit (N 10 Moz resource) is a Cretaceous orogenic system hosted in the Hyde-Macraes Shear...fracture permeability. The Au and W enrichment in the Macraes deposit resulted from regional scale metal mobility...metamorphism that persisted structurally below the Macraes deposit for at least 10 Ma after mineralisation |  | | Journal (article/letter/editorial) | | arsenate (V) ion adsorption from mine waters, Macraes mine, New Zealand Alisa J. Roddick-Lanzilottaa, A...University of Otago, PO Box 56, Dunedin, New Zealand b Geology Department, University of Otago, PO Box 56...56, Dunedin, New Zealand Received 5 October 2000; accepted 17 August 2001 Editorial handling by R. Fuge...contain up to 10 mg l1 dissolved As at the Macraes mine, New Zealand, and this is all removed by adsorption...being deposited from dam discharge waters at the Macraes mine. An adsorption isotherm determined for this |  | | Journal (article/letter/editorial) | | precursor to orogenic gold mineralisation, Otago Schist, New Zealand Anicia Henne & Dave Craw Received: 3...January 2012 # Springer-Verlag 2012 Abstract The Macraes orogenic gold deposit is hosted by a graphitic...protoliths, that occur locally in background pelitic Otago Schist metasediments. This study was aimed at determining... Argillites in the protolith turbidites of the Otago Schist metamorphic belt contain minor amounts of...Geology Department, University of Otago, PO Box 56, Dunedin, New Zealand e-mail: dave.craw@otago.ac.nz |  | Pitcairn, I. K., Teagle, D. A. H., Craw, D., Olivo, G. R., Kerrich, R., Brewer, T. S. (2006) Sources of Metals and Fluids in Orogenic Gold Deposits: Insights from the Otago and Alpine Schists, New Zealand. Economic Geology, 101 (8) 1525-1546 doi:10.2113/gsecongeo.101.8.1525 | Journal (article/letter/editorial) | | Gold Deposits: Insights from the Otago and Alpine Schists, New Zealand IAIN K. PITCAIRN,â ,* DAMON A. H...Geology Department, University of Otago, P.O. Box 56, Dunedin, New Zealand GEMA R. OLIVO, Department of...Kingdom Abstract The Otago and Alpine schists of the South Island of New Zealand form a young (<200 Ma)...orogenic gold deposits, including the 125-t Au Macraes deposit. As such, the schist belt is an ideal geologic...the lithologic and metamorphic variation in the Otago and Alpine schists was collected and analyzed for |  | | Journal (article/letter/editorial) | | DURING PROGRADE METAMORPHISM OF THE OTAGO AND ALPINE SCHISTS, NEW ZEALAND Iain K. PITCAIRN§ Department of...University of Otago, PO Box 56, Dunedin, New Zealand Abstract Sulfide minerals in the Otago and Alpine...Alpine schists, New Zealand, a metasedimentary belt exposed from unmetamorphosed greywackes up to amphibolite...metamorphism, orogenic gold, Otago Schists, Alpine Schists, New Zealand. Sommaire Les minĂ©raux sulfurĂ©s...sulfurĂ©s des schistes des sĂ©ries Otago et Alpine, en Nouvelle-ZĂ©lande, roches appartenant Ă une ceinture |  | | Journal (article/letter/editorial) | | Department, University of Otago, Leith Street, PO Box 56, Dunedin 9001, New Zealand Received 29 August 2002;...suite of a variety of thin sediments in southern New Zealand, with no evidence for chemical corrosion. These...thermodynamic data for arsenopyrite. Calculations using the new thermodynamic data suggest that arsenopyrite has...the laboratory and up to 400 ppm dissolved As in mine processing waters. These concentrations of dissolved...protective oxide coatings on arsenopyrite grains. Mine tailings containing arsenopyrite should be chemically |  | | Journal (article/letter/editorial) | | Vein, NW Otago Schist, New Zealand R. Hay and D. Craw Geology Department, University of Otago, P.O. Box...Box 56, Dunedin, New Zealand Received: July 1, 1992 / Accepted: September 30, 1992 Abstract. The Invincible...Valley, NW Otago. The vein cuts north striking foliation in lower greenschist facies Otago Schist. Structures...earliest recognised gold-bearing vein system in the Otago Schist. Gold-quartz vein deposits are commonly...syn-metamorphic mineralised vein system in the Otago Schist belt, New Zealand, a metamorphic belt in which there |  | | Journal (article/letter/editorial) | | rocks from the Otago and Alpine Schists, New Zealand. The metabasaltic rocks in the Otago and Alpine Schists...scale to that removed from metasedimentary rocks in Otago. Arsenic concentrations increase with metamorphic...Geology Department, University of Otago, PO Box 56, Dunedin, New Zealand D. A. H. Teagle National Oceanography...metasedimentary rocks in the Otago and Alpine Schists, South Island, New Zealand (Pitcairn et al. 2006a, 2010)...those enriched in the orogenic gold deposits of Otago. Hence, the Miner Deposita depletions are interpreted |  | | Journal (article/letter/editorial) | | Terranes, South Island, New Zealand: Implications for the gold endowment of the Otago Schist? Frank P. Bierlein...Geology Department, University of Otago, PO Box 56, Dunedin, New Zealand a r t i c l e i n f o Article...Mantle plumes Orogenic gold Ore-forming processes Otago Schist a b s t r a c t We report quantitative X-ray...South Island of New Zealand. These rocks underlie the Mesozoic metasedimentary Otago Schist which is...least one world-class orogenic gold deposit at Macraes (N 125 t Au). Geochemical and Nd isotopic similarities |  | | Journal (article/letter/editorial) | | contrasting supergene gold alteration zones, southern New Zealand Dave Craw, Gemma Kerr PII: S0883-2927(17)30271-8...contrasting supergene gold alteration zones, southern New Zealand, Applied Geochemistry (2017), doi: 10.1016/ j...southern New Zealand 3 4 Dave Craw and Gemma Kerr 5 Geology Department, University of Otago, PO Box...Box 56, Dunedin 9054, New Zealand RI PT 6 Abstract 8 Supergene alteration of gold deposits has had...supergene processes in 12 the Otago Schist goldfield of southern New Zealand, and these analyses are used |  | | Journal (article/letter/editorial) | | 2006 Abstract Gold extraction at the Macraes gold mine in New Zealand involves concentration of pyrite and...cyanidation. The ore concentrate is predominantly Otago Schist host rock (andesitic composition) with up...Geology Department, University of Otago, P.O. Box 56, Dunedin, New Zealand e-mail: dave.craw@stonebow.otago...calcite, epidote Pyrite, pyrrhotite, chalcopyrite, titanite Quartz, kaolinite, smectite, illite, sericite...2001) is located at the Macraes gold mine, New Zealand (Craw 2003). The gold mine is developed in a mesothermal |  | Wellnitz, A. Katrin, Scott, James M., Martin, Candace E., Palin, J. Michael, Stirling, Claudine H., Reid, Malcolm R., Wombacher, F., Craw, Dave (2019) Carbonation reactions and coupled element and isotope redistribution during shallow crustal gold mineralisation, New Zealand. Mineralium Deposita, 54 (5) 743-760 doi:10.1007/s00126-018-0838-9 | Journal (article/letter/editorial) | | during shallow crustal gold mineralisation, New Zealand A. Katrin Wellnitz 1 & James M. Scott 1 & Candace...meta-basite (greenschist) in the Otago Schist in New Zealand. The new data provide insight into the fluid-rock...mineralising fluids with high CO2 activity was epidote < titanite < actinolite < chlorite and muscovite, with their...microscopic scale during the replacement of metamorphic titanite. Similarly, rare earth elements (REE; La to Lu)... Carbonate . Trace elements . Mineralisation . Otago Schist Introduction Editorial handling: S. Hagemann |  | | Journal (article/letter/editorial) | | gold deposits, Reefton goldfield, South Island, New Zealand Received: 20 January 2001 / Accepted: 28 January...prior to 1951, and recent exploration has identiïŹed new gold resources in several deposits, including the...are graphite, apatite, zircon, tourmaline and titanite. Hydrothermal alteration of the sandstones has...Sciences Limited, P.O. Box 31-312, Lower Hutt, New Zealand E-mail: t.christie@gns.cri.nz Tel.: +64-4-5701444...assistance to exploration. Keywords Alteration Ă New Zealand Ă Orogenic gold Ă Reefton Introduction The Reefton |
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