Reassessment of controls on the gold mineralisation in the Nyankanga deposit - Geita gold mines, north-western Tanzania

8th International Mining Geology Conference 2011, Proceedings

Volumn , Issue , 2011, Pages 153-167

  Nugus, M J ^a   Brayshaw, M ^b   Robins, S ^b  

^a Sunrise Dam Gold Mine   (Australia)

^b AngloGold Ashanti Limited   (South Africa)

Author keywords

[No Author keywords available]

Indexed keywords

ARCHAEAN; BANDED IRON FORMATIONS; DEFORMATION HISTORY; FLUID PATHWAYS; GOLD MINERALISATION; HYDROTHERMAL FLUIDS; PHILLIPS; SEA FLOOR; SUBMILLIMETRE; TANZANIA;

DEPOSITS; ECONOMIC GEOLOGY; FRACTURE; GOLD DEPOSITS; GOLD MINES; MINERALOGY;

GOLD;

EID: 84866345221     PISSN: None     EISSN: None     Source Type: Conference Proceeding    
DOI: None     Document Type: Conference Paper

References (17)

1. Borg, G and Krogh, T E, 1999. Isotopic age date of single zircons from the Archaean Sukumaland greenstone belt, Tanzania, Journal of African Earth Science, 29:301-312.
2. Borg, G and Massola, S, 1991. The lithotypes of the Sukuluma greenstone belt, N W Tanzania, Geology and genetic evolution, in Gold and Platinoids in Central Africa, IGCP No 255 final meeting, 11-13.9, Bijumurra, extended abstract volume.
3. Brayshaw, M, 2009. Preliminary structural analysis of the geology of the central thrust ramp (Internal unpublished company report) Geita Gold Mine, 19 p.
4. Chamberlain, C M and Tosdal, R M, 2007. U-Pb geochronology of the Lake Victoria Greenstone terrane, Tanzania. Mineral Deposit Research Unit, The University of British Columbia (available to AngloGold-Ashanti as a sponsor of the research programme).
5. Cowley, P, 2001. The discovery and development of the Geita gold deposits, Northern Tanzania, in Proceedings New Generations Gold Conference, pp 123-135.
6. Goldfarb, R J, Groves, D I and Gardoll, S, 2001. Orogenic gold and geologic time: A global synthesis, Ore Geology Reviews; 18(1-2):1-75.
7. Krapez, B, 2008. Stratigraphic analysis of the Geita Mine Sequence, (unpublished consultancy report) Jigsaw Geoscience, 36 p.
8. Kuehn, S, Ogola, J and Sango, P, 1990. Regional setting and nature of gold mineralisation in Tanzania and southwest Kenya, Precambrian Research, 46:71-82.
9. Neall, F B, 1987. Sulfidation of iron-rich rocks as a precipitation mechanism for large Archaean gold deposits in Western Australia: thermodynamic confirmation, Recent advances in understanding Precambrian gold deposits, Geol Dept and Univ Extension (eds: S E Ho and D I Groves) University of Western Australia, 11:265-269.
10. Neall, F B, Phillips G N, 1987. Fluid-wall interaction in an Archean hydrothermal gold deposit: a thermodynamic model for the Hunt Mine, Kambalda, Econ Geol, 82:1679-1694.
11. Nugus, M, 2010. Review of geological characteristics at GGM for consideration (unpublished company report) Anglogold-Ashanti, 13 p.
12. Nugus, M J, Biggam, J Clark, F and Erickson, M, 2009. Development and application of macroscopic geological proxies for gold mineralisation in high nugget environments - an example from Sunrise Dam Gold Mine, Western Australia, in Proceedings Seventh International Mining Geology Conference, pp 309 (The Australasian Institute of Mining and Metallurgy: Melbourne).
13. Nugus, M and Brayshaw, M, 2010. General geological characteristics impacting gold mineralisation at Nyankanga Pit; GGM (unpublished company report) Anglogold-Ashanti, 40 p.
14. Painter, M, 2007. Documentation of Nyankanga structural model refinement (unpublished consultancy memorandum), RSG Global, 20pp.
15. Phillips, G N and Powell, R, 1993. Link between gold provinces, Economic Geology, 88(5)1084-1098.
16. Ryan, L and Speers, R, 2002. The geology and structural controls on mineralisation at the Nyankanga Deposit, Geita, Tanzania, internal unpublished company report, Geita Gold Mine, 37 p.
17. Skead, M B, Kersi, P, Jacob, I and Adofo, R, 2003. Nyankanga West Deposit: Geological and mineralisation model, internal unpublished company report, Geita Gold Mine, 31 p.