Structure and geochemistry of the rise & shine shear zone mesothermal gold system, Otago Schist, New Zealand

New Zealand Journal of Geology and Geophysics

Volumn 49, Issue 4, 2006, Pages 429-442

  Cox, L ^a   Mackenzie, D J ^a   Craw, D ^a   Norris, R J ^a   Frew, R ^a  

^a UNIVERSITY OF OTAGO   (New Zealand)

Author keywords

Arsenopyrite; Fluid inclusions; Gold; Macraes mine; Schist; Stable isotopes; Structure

Indexed keywords

FLUID INCLUSION; GOLD; HYDROTHERMAL ALTERATION; MINERALIZATION; SCHIST; SHEAR ZONE; STABLE ISOTOPE;

AUSTRALASIA; NEW ZEALAND; OTAGO; SOUTH ISLAND;

EID: 33846375534     PISSN: 00288306     EISSN: 11758791     Source Type: Journal    
DOI: 10.1080/00288306.2006.9515179     Document Type: Article

References (46)

1. Adams, CJ, and Graham, IJ. 1997. Age of metamorphism of Otago Schist in eastern Otago and determination of protoliths from initial strontium isotope characteristics. New Zealand Journal of Geology and Geophysics, 40:275–286.
2. Aldridge, CH. 1983. Examination of Rise and Shine mine area, PL 31576, Otago, Wellington:Bronze Boulder Mining and Development Co. Ltd. Ministry of Economic Development. unpublished open-file report MR1951
3. Ashley, PM, and Craw, D. 1995. Carrick Range Au and Sb mineralisation in Caples Terrane, Otago Schist, Central Otago, New Zealand. New Zealand Journal of Geology and Geophysics, 38:137–149.
4. Brown, EH. 1967. The greenschist facies in part of eastern Otago, New Zealand. Contributions to Mineralogy and Petrology, 14:259–292.
5. Cathelineau, M, and Nieva, D. 1985. A chlorite solid solution geother-mometer. The Los Azufres (Mexico) geothermal system. Contributions to Mineralogy and Petrology, 91:235–244.
6. Corner, NG. 1986. Drilling report, Prospecting Licences 31–576 and 31–1490, Wellington:Homestake New Zealand Exploration Ltd. Ministry of Economic Development. unpublished open-file report MR1996
7. Craw, D. 1988. Shallow-level metamorphic fluids in a high uplift rate mountain belt, Alpine Schist, New Zealand. Journal of Metamorphic Geology, 6:1–16.
8. Craw, D. 1992. Fluid evolution, fluid immiscibility and gold deposition during Cretaceous-Recent tectonics and uplift of the Otago and Alpine Schist, New Zealand. Chemical Geology, 98:221–236.
9. Craw, D. 1998. Structural boundaries and biotite and garnet ‘isograds’ in the Otago and Alpine Schists, New Zealand. Journal of Metamorphic Geology, 16:395–402.
10. Craw, D. 2002. Geochemistry of late metamorphic hydrothermal alteration and graphitisation of host rock, Macraes gold mine, Otago Schist, New Zealand. Chemical Geology, 191:257–275.
11. Craw, D, and Norris, RJ. 1991. Metamorphogenic Au-W veins and regional tectonics:mineralisation throughout the uplift history of the Haast Schist, New Zealand. New Zealand Journal of Geology and Geophysics, 34:373–383.
12. Craw, D, Reay, A, and Johnstone, RD. 1991. Hydrothermal alteration geochemistry of Nugget gold vein system, Shotover valley, northwest Otago, New Zealand. New Zealand Journal of Geology and Geophysics, 34:419–427.
13. Craw, D, Windle, SJ, and Angus, PV. 1999. Gold mineralisation without quartz veins in a ductile-brittle shear zone, Macraes Mine, Otago Schist, New Zealand. Mineralium Deposita, 34:382–394.
14. Craw, D, MacKenzie, DJ, and Petrie, B. Disseminated gold mineralisation in a schist-hosted mesothermal deposit, Macraes mine, Otago, New Zealand. Proceedings, PACRIM 2004. Carlton, Victoria. pp. 135–140. Australasian Institute of Mining & Metallurgy.
15. de Caritat, P, Hutcheon, I, and Walshe, JL. 1993. Chlorite geothermometry:a review. Clays and Clay Minerals, 41:219–239.
16. Deckert, H, Ring, U, and Mortimer, N. 2002. Tectonic significance of Cretaceous bivergent extensional shear zones in the Torlesse accretionary wedge, central Otago Schist, New Zealand. New Zealand Journal of Geology and Geophysics, 45:537–547.
17. de Ronde, CEJ, Faure, K, Bray, CJ, and Whitford, DJ. 2000. Round Hill shear zone-hosted gold deposit, Macraes Flat, Otago, New Zealand:evidence of a magmatic ore fluid. Economic Geology, 95:1025–1048.
18. Forster, MA, and Lister, GS. 2003. Cretaceous metamorphic core complexes in the Otago Schist, New Zealand. Australian Journal of Earth Sciences, 50:181–198.
19. 39Arthermochronologic constraints on deformation, metamorphism and cooling/exhumation of a Mesozoic accretionary wedge, Otago Schist, New Zealand. Tectonophysics, 385:181–210.
20. Grieve, PL. 1991. Final report, Prospecting Licence 31 -2450, Rise and Shine, Macraes Mining Co. Ltd. unpublished report
21. Harper, CT, and Landis, CA. 1967. K-Ar ages from regionally metamorphosed rocks, South Island, New Zealand, and some tectonic implications. Earth and Planetary Science Letters, 2:419–429.
22. Hay, R, and Craw, D. 1993. Syn-metamorphic gold mineralisation, Invincible Vein, NW Otago Schist, New Zealand. Mineralium Deposita, 28:90–98.
23. Jackson, J, Norris, RJ, and Youngson, JH. 1996. The structural evolution of active fault and fold systems in Central Otago, New Zealand:evidence revealed by drainage patterns. Journal of Structural Geology, 18:217–234.
24. Kerr, LC, Craw, D, and Youngson, JH. 1999. Arsenopyrite compositional variation over variable temperatures of mineralization, Otago Schist, New Zealand. Economic Geology, 94:123–128.
25. 39Ar white mica ages. New Zealand Journal of Geology and Geophysics, 42:305–325.
26. Lister, GS, and Baldwin, SL. 1996. Modelling the effect of arbitrary P-T-t histories on argon diffusion in minerals using the MacArgon program for the Apple Macintosh. Tectonophysics, 253:83–109.
27. Lonker, SW, Fitzgerald, J, Hedenquist, JW, and Walshe, JL. 1990. Mineral-fluid interaction in the Broadlands-Ohaaki geothermal system, New Zealand. American Journal of Science, 290:995–1068.
28. McKeag, SA, and Craw, D. 1989. Contrasting fluids in gold-quartz vein systems formed progressively in a rising metamorphic belt:Otago Schist, New Zealand. Economic Geology, 84:22–33.
29. MacKenzie, DJ, and Craw, D. 2005. Structural and lithological continuity and discontinuity in the Otago Schist, Central Otago, New Zealand. New Zealand Journal of Geology and Geophysics, 48:279–293.
30. MacKenzie, DJ, Corner, N, and Craw, D. 2006. “ The Rise & Shine Shear Zone ”. In Geology and exploration of New Zealand mineral deposits, Australasian Institute of Mining and Metallurgy Monograph 25 Edited by:Christie, AB, and Brathwaite, RL. 319–323.
31. Mitchell, M, Maw, L, Angus, PV, and Craw, D. 2006. “ The Macraes gold deposit in east Otago ”. In Geology and exploration of New Zealand mineral deposits, Australasian Institute of Mining and Metallurgy Monograph 25 Edited by:Christie, AB, and Brathwaite, RL. 313–318.
32. Mortimer, N. 1993. Geological map of the Otago Schist and adjacent rocks, scale 1:500 000, Institute of Geological & Nuclear Sciences Geological Map 7 Lower Hutt, New Zealand:Institute of Geological & Nuclear Sciences Ltd.
33. Mortimer, N, and Roser, BP. 1992. Geochemical evidence for the position of the Caples-Torlesse boundary in the Otago Schist, New Zealand. Journal of the Geological Society London, 149:967–977.
34. Park, J. 1908. The geology of the Cromwell subdivision, New Zealand Geological Survey Bulletin 5 92
35. Paterson, CJ. 1986. Controls on gold and tungsten mineralization in metamorphic-hydrothermal systems, Otago, New Zealand, Geological Association of Canada Special Paper 32 25–39.
36. Petrie, BS, Craw, D, and Ryan, CG. 2005. Geological controls on refractory ore in an orogenic gold deposit, Macraes mine, New Zealand. Mineralium Deposita, 40:45–58.
37. Roedder, E. 1984. Fluid inclusions. Reviews in Mineralogy 12, 644Washington DC:Mineralogical Society of America.
38. Scott, SD. 1983. Chemical behaviour of sphalerite and arsenopyrite in hydrothermal and metamorphic environments. Mineralogical Magazine, 47:427–435.
39. Sharp, ZD, Essene, EJ, and Kelly, WC. 1985. A re-examination of the arsenopyrite geothermometer:pressure considerations and applications to natural assemblages. Canadian Mineralogist, 23:517–534.
40. Sibson, RH. 1977. Fault rocks and fault mechanisms. Journal of the Geological Society of London, 133:191–213.
41. Smith, DW, Craw, D, and Koons, PO. 1996. Tectonic hydrothermal gold mineralisation in the outboard zone of the Southern Alps, New Zealand. New Zealand Journal of Geology and Geophysics, 39:201–209.
42. Teagle, DAH, Norris, RJ, and Craw, D. 1990. Structural controls on gold-bearing quartz mineralization in a duplex thrust system, Hyde-Macraes Shear Zone, Otago Schist, New Zealand. Economic Geology, 85:1711–1719.
43. Turnbull, IM, ed. 2000. Geology of the Wakatipu area, Institute of Geological & Nuclear Sciences 1:250 000 Geological Map 18 72Lower Hutt, New Zealand:Institute of Geological & Nuclear Sciences Ltd. 1 sheet +
44. Turnbull, IM, Mortimer, N, and Craw, D. 2001. Textural zones in the Haast Schist—a reappraisal. New Zealand Journal of Geology and Geophysics, 44:171–183.
45. Williamson, JH. 1939. The geology oftheNaseby Subdivision, Central Otago, New Zealand Geological Survey Bulletin 39
46. Zang, W, and Fyfe, WS. 1995. Chloritization of the hydrothermally altered bedrock at the Igarape Bahia gold deposit, Brazil. Mineralium Deposita, 30:30–38.