Geochemical effects of deeply buried Cu Au mineralization on transported regolith in an arid terrain

Geochemistry: Exploration, Environment, Analysis

Volumn 9, Issue 3, 2009, Pages 227-236

  Mokhtari, Ahmad R ^a   Cohen, David R ^a   Gatehouse, Simon G ^a  

^a UNIVERSITY OF NEW SOUTH WALES   (Australia)

Author keywords

Australia; Dispersion; Mandamah; Partial extraction; Transported regolith

Indexed keywords

ALKALINITY; BINARY ALLOYS; CHIMNEYS; CLAY ALTERATION; COPPER; COPPER ALLOYS; COPPER DEPOSITS; DISPERSION (WAVES); DISPERSIONS; GEOCHEMISTRY; GOLD; GOLD ALLOYS; GOLD DEPOSITS; GROUNDWATER; ION EXCHANGE; MINERALS; SULFUR COMPOUNDS; TRACE ELEMENTS;

AUSTRALIA; CATION EXCHANGE CAPACITIES; MANDAMAH; MINERAL DISTRIBUTION; PARTIAL EXTRACTIONS; SOIL ELECTRICAL CONDUCTIVITY; SULPHIDE MINERALIZATION; TRANSPORTED REGOLITH;

MINERALOGY;

ALKALINITY; BEDROCK; COPPER; DISPERSION; ELECTRICAL CONDUCTIVITY; GEOCHEMISTRY; GOLD; GYPSUM; ION EXCHANGE; MINERALIZATION; REGOLITH; TERRAIN; TRANSPORT PROCESS;

AUSTRALASIA; AUSTRALIA; NEW SOUTH WALES;

EID: 70349216386     PISSN: 14677873     EISSN: None     Source Type: Journal    
DOI: 10.1144/1467-7873/09-203     Document Type: Article

References (38)

1. Anand, R.R. 2005. Weathering history, landscape evolution and implications for exploration. In: Anand, R.R. & de Broekert, P. (eds) Regolith landscape evolution across Australia: A compilation of regolith landscape case studies with regolith landscape evolution models. CRC LEME Monograph, 2-40.
2. Anand, RR, Fraser, S.J., Jones, M.R et al 2002. Geochemical exploration in regolith dominated terrain, North Queensland. Final Report for CRC LEME- AMIRA Project P417.
3. Aspandiar, M.F. 2005. Mechanisms of metal transfer through transported cover with the Australian Regolith: A Review. In: Anand, RR & Morris, P. (eds) Minerals Exploration Seminar, 14-16 February 2005. CRC LEME, Adelaide, SA, 87.
4. Bajc, A.F. 1998. A comparative analysis of enzyme leach and mobile metal ion selective extractions; case studies from glaciated terrain, northern Ontario. Journal of Geochemical Exploration, 61, 113-148.
5. Bamford, P.L.M., McQueen, K.G. & Scott, K.M. 2004. Geochemical dispersion and under-cover expression of gold mineralization at the Wyoming gold deposit, Tomingley, NSW. In: Roach, I.C. (ed.) Regolith 2004. CRC LEME, Adelaide, SA, 26-28.
6. Butt, C.R.M. & Smith, RE. 1980. Conceptual models in exploration geochemistry-Australia. Journal of Geochemical Exploration, 12, 89-365.
7. Butt, C.R.M., Lintern, M.J. & Anand, RR. 2000. Evolution of regolith and landscapes in deeply weathered terrain-implications for geochemical exploration. Ore Geology Reviews, 16, 167-183.
8. Cameron, E.M., Hamilton, S.M., Leybourne, M.I., Hall, G.E.M. & McClenaghan, M.B. 2004. Finding deeply buried deposits using geochemistry. Geochemistry: Exploration, Environment, Analysis, 4, 7-32.
9. Chan, RA. & Gibson, D.L. 2003. Regolith Landforms of the Gilmore Project Area. CRC LEME, Open File Report, 147.
10. Cohen, D.R. & Ward, C.R. 1992. SEDNORM-A program for determining sedimentary mineral compositions from chemical data. Computers and Geosciences, 17, 1235-1254.
11. Cohen, D.R., Shen, X.C., Dunlop, A.C. & Rutherford, N.F. 1998. A comparison of selective extraction soil geochemistry and biogeochemistry in the Cobar area, New South Wales. Journal of Geochemical Exploration, 61, 173-189.
12. Cohen, D.R., Kelley, D.L., Anand, RR & Coker, W.B. 2007. Major advances in exploration geochemistry, 1998-2007. In: Milkreit, B. (ed.) Proceedings of Exploration '07: Fifth Decennial International Conference on Mineral Exploration, Prospectors and Developers Association of Canada, 1-22,
13. Dalrymple, I.J. 2006. An approach to the optimisation of partial extractions for use in geochemical exploration. PhD thesis, University of New South Wales.
14. Dalrymple, I.J., Cohen, D.R. & Gatehouse, S.G. 2005. Optimisation of partial extraction chemistry for buffered acetate and hydroxylamine leaches. Geochemistry: Exploration, Environment, Analysis, 5, 279-285.
15. Dalrymple, et al. 2007.
16. de Souza Kovacs, N., Moore, C.L. & Wilford, J. 2000. Distribution of gold and base metals in regolith materials at Mandamah prospect, central western New South Wales. In: Skilbeck, C.G. & Hubble, C.T. (eds) Understanding Planet Earth, 15th Australian Geological Convention, Abstracts. Geological Society of Australia, 135.
17. + and conductivity ot closely spaced surlace soil samples. Journal of Geochemical Exploration, 6, 359-382.
18. Govett, G.J.S. & Atherden, P.R 1987. Electrogeochemical patterns in surface soils-detection of blind mineralisation beneath exotic cover, Thalanga, Queensland, Australia. Journal of Geochemical Exploration, 28, 201-218.
19. Gray, D.J., Wildman, J.E. & Longman, G.D. 1999. Selective and partial extraction analyses of transported overburden for gold exploration in the Yilgarn Craton, Western Australia. Journal of Geochemical Exploration, 67, 51-66.
20. Hall, G.E.M. 1998. Analytical perspective on trace element species of interest in exploration. Journal of Geochemical Exploration, 61, 1-19.
21. Hamilton, S.M. 1998. Electrochemical mass-transport in overburden: a new model to account for the formation of selective leach geochemical anomalies in glacial terrain. Journal of Geochemical Exploration, 63, 155-172.
22. Hamilton, S.M., Cameron, E.M., McClenaghan, M.B. & Hall, G.E.M. 2004a. Redox, pH and SP variation over mineralisation in thick glacial overburden. Part I: methodologies and field investigation at the Marsh Zone gold property. Geochemistry: Exploration, Environment, Analysis, 4, 33-44,
23. Hamilton, S.M., Cameron, E.M., McClenaghan, M.B. & Hall, G.E.M. 2004b. Redox, pH and SP variation over mineralisation in thick glacial overburden. Part II: field investigation at Cross Lake VMS property. Geochemistry: Exploration, Environment, Analysis, 4, 45-58.
24. Hee, R 2002. Exploration Licence 5848 Junee, Annual Report to 2nd May 2002. Golden Cross Operations Pty Ltd.
25. Kelley, D.L., Hall, G.E.M., Closs, L.G., Hamilton, I.C. & McEwen, RM. 2003. The use of partial extraction geochemistry for copper exploration in northern Chile. Geochemistry: Exploration, Environment, Analysis, 3, 85-104.
26. Lintern, M.J. 2001. Exploration for gold using calcrete-lessons from the Yilgarn Craton, Western Australia. Geochemistry: Exploration, Environment, Analysis, 1, 237-252.
27. MacCorquodale, F. 1997. The Mandamah porphyry Cu-Au prospect: New developments in research for ore deposit exploration. In: Third National Conference of the Specialist Group in Economic Geology. Geological Society of Australia, 44-51.
28. Mann, A.W., Birrell, R.D., Mann, A.T., Humphreys, D.B. & Perdrix, J.L. 1998. Application of the mobile metal ion technique to routine geochemical exploration. Journal of Geochemical Exploration, 61, 87-102.
29. Mann, A.W., Birrell, R.D., Fedikow, M.A.F. & De Souza, H.A.F. 2005. Vertical ionic migration: mechanisms, soil anomalies, and sampling depth for mineral exploration. Geochemistry: Exploration, Environment, Analysis, 5, 201-210.
30. Ollier, CD. & Pain, C.F. 1994. Landscape evolution and tectonics in south-eastern Australia. AGSO Journal of Australian Geology and Geophysics, 15, 335-345.
31. Pillans, B. 2005. Geochronology of the Australian regolith. In: Anand, RR & de Broekert, P. (eds) Regolith-Landscape Evolution Across Australia. CRC LEME, Monograph, 41-61.
32. Shen, X.C., Dunlop, A.C. & Cohen, D.R. 1999. Geochemical dispersion in residual and transported regolith along drainage systems near the CSA mine, Cobar, New South Wales. In: Taylor, G.F. & Pain, C.F. (eds) New Approaches to an Old Continent. CRC LEME, Adelaide, SA, 263-270.
33. Smee, B.W. 1983. Laboratory and field evidence in support of the electro-geochemically enhanced migration of ions through glaciolacustrine sediment. Journal of Geochemical Exploration, 19, 277-304.
34. Smee, B.W. 1998. A new theory to explain the formation of soil geochemical responses over deeply covered gold mineralisation in arid environments. Journal of Geochemical Exploration, 61, 149-172.
35. Sonderling, L. & Neltner, S. 1983. Applied spectrophotometry in meth-ylene blue clay determinations. Transactions of the American Foundrymen's Society, 91, 77-80.
36. Wang, X., Xie, X., Cheng, Z. & Liu, D. 1999. Delineation of regional geochemical anomalies penetrating through thick cover in concealed terrains-a case history from the Olympic Dam deposit, Australia. Journal of Geochemical Exploration, 66, 85-97.
37. Ward, C.R, Taylor, J.C. & Cohen, D.R. 1999. Quantitative mineralogy of sandstones by X-ray diffractometry and normative analysis. Journal of Sedimentary Research, 69, 1050-1062.
38. Yeager, J.R, Clark, J.R., Mitchell, W. & Renshaw, R 1998. Enzyme Leach anomalies associated with deep Mississippi Valley-type zinc ore bodies at the Elmwood Mine, Tennessee. Journal of Geochemical Exploration, 61, 103-112.