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Macraes Flat

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Journal Article
Journal: Economic Geology
Published: 01 August 2000
Economic Geology (2000) 95 (5): 1025-1048.
...Cornel E. J. de Ronde; Kevin Faure; Colin J. Bray; David J. Whitford Abstract The 0.8-Moz Round Hill shear zone-hosted gold deposit is one of several located on, or near, the Hyde-Macraes shear zone, Macraes Flat, New Zealand. Field relationships show stockwork veins are the oldest part...
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Image
F ig . 1. A. Inset shows location of the <b>Macraes</b> <b>Flat</b> area and the Hyde-Mac...
Published: 01 August 2000
F ig . 1. A. Inset shows location of the Macraes Flat area and the Hyde-Macraes shear zone (HMSZ) within the Otago Schist of central Otago, South Island, New Zealand. The stripe pattern outlines the outcropping Median batholith ( Mortimer et al., 1999 ). Also shown are the Benmore Dam and Cromwell
Journal Article
Journal: Economic Geology
Published: 01 March 2018
Economic Geology (2018) 113 (2): 347-375.
...Andrew Allibone; Philip Jones; Hamish Blakemore; Dave Craw; Doug MacKenzie; Jonathan Moore Abstract The 10 Moz Macraes gold deposit in southern New Zealand is hosted within a 100-m-thick slice of weakly altered schist and the overlying Hanging-wall shear. This shear marks the base of the >1.5-km...
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Journal Article
Journal: Economic Geology
Published: 01 June 2010
Economic Geology (2010) 105 (4): 777-793.
... in a shear zone in upper greenschist facies Torlesse assemblage rocks (MacKenzie and Craw, 2006). Both of these shear zones contain some mineralized quartz veins, and scheelite is abundant in Macraes deposit veins. Macraes veins include shear-parallel (flat) and stockwork (vertical) vein types, whereas veins...
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Journal Article
Journal: Economic Geology
Published: 01 December 2006
Economic Geology (2006) 101 (8): 1525-1546.
... to amphibolite facies rocks. The belt contains abundant orogenic gold deposits, including the 125-t Au Macraes deposit. As such, the schist belt is an ideal geologic setting for investigation of the sources of metals and fluids responsible for formation of metamorphic rock-hosted gold deposits. A large suite...
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Image
F ig . 5. A. Histogram of wt percent NaCl equiv for <b>Macraes</b> (mainly Round H...
Published: 01 August 2000
F ig . 5. A. Histogram of wt percent NaCl equiv for Macraes (mainly Round Hill) type I fluid inclusions. Hanging-wall and stockwork vein samples have, on average, lower salinities than those for ramp and flat vein samples. B. Temperatures of homogenization (T h ) for all type I inclusions generally
Journal Article
Published: 01 May 2005
Journal of the Geological Society (2005) 162 (3): 429-432.
...Iain K. Pitcairn; Steve Roberts; Damon A. H. Teagle; Dave Craw Abstract Fourier Transform IR analyses of carbonaceous material from the Otago and Alpine Schists and the Macraes gold deposit of the South Island, New Zealand, show the progressive effects of graphitization during metamorphism...
FIGURES
Journal Article
Published: 01 August 2007
Geochemistry: Exploration, Environment, Analysis (2007) 7 (3): 225-232.
... Au deposit, Macraes Flat, Otago, New Zealand: evidence of a magmatic ore fluid . Economic Geology , 95 2000 . 1025 – 1048 . Field , C.W. , Fifarek , R.H. , Light stable isotope systematics in the epithermal environment . In: Berger , B.R. & Bethke , P.M. (eds...
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Journal Article
Journal: Economic Geology
Published: 01 November 2018
Economic Geology (2018) 113 (7): 1571-1586.
... . de Ronde , C.E. , Faure , K. , Bray , C.J. , and Whitford , D.J. , 2000 , Round Hill shear zone-hosted gold deposit , Macraes Flat, Otago, New Zealand: Evidence of a magmatic ore fluid: Economic Geology , v. 95 , p. 1025 – 1048 . Elburg , M. , Vroon , P. , van der...
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Series: GCSSEPM
Published: 01 July 1993
DOI: 10.5724/gcs.92.13.0009
EISBN: 978-0-9836097-3-5
.... The BSE depth map, distribution of Callovian salt and overlying Upper Jurassic sediments reflect the control of crustal extension on the overall configuration of the basin. Detailed mapping of Callovian salt ( MacRae 1990 ) shows that salt thins and onlaps the BSE surface around the periphery of the basin...
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Series: European Mineralogical Union Notes in Mineralogy
Published: 01 January 2010
DOI: 10.1180/EMU-notes.9.7
EISBN: 9780903056359
... of secondary fluorescence is illustrated in Figure 15 . In this image, single mineral grains of Ti-free olivine (San Carlos, Arizona, USA) and ilmenite (Kingaroy, Queensland, Australia) were polished flat on one surface, bonded together with a small drop of resin and then mounted in a block of resin. A line...
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Journal Article
Published: 01 March 2019
South African Journal of Geology (2019) 122 (1): 1-16.
... for the proximal and distal facies has been published recently ( Barbolini et al., 2018 ). The only previous palynological investigations of the Springbok Flats and Ellisras basins were by Anderson (1977) and MacRae (1988) , but recent advances in Karoo biostratigraphy (summarised in Rubidge et al., 2016...
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Series: Geological Society, London, Special Publications
Published: 01 January 2014
DOI: 10.1144/SP402.1
EISBN: 9781862396784
... and metamorphogenic water are flowing through fault and fracture zones throughout the mountains ( Jenkin et al. 1994 ; Upton et al. 1995 , 2003 ; Cox et al. 1997 ; Koons et al. 1998 ). Gold deposits have formed throughout the post-metamorphic history of the South Island. The Macraes deposit formed...
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Series: Geological Society, London, Special Publications
Published: 01 January 2009
DOI: 10.1144/SP312.5
EISBN: 9781862395602
... of the Alborz emerged, the marine facies being restricted to a small area on the Caspian side of the central Alborz. There, the Permo-Triassic boundary interval is somewhat similar to the Abadeh–Shahreza belt in central Iran, and contains oolites, flat microbialites and domal stromatolites, forming the base...
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