New horizons for groundwater geochemistry in uranium exploration

Bruce Dickson; Angela Giblin

doi:10.1071/ASEG2006ab035

ISSN: 2202-0586
E-ISSN:

oa New horizons for groundwater geochemistry in uranium exploration
Authors Bruce Dickson^a and Angela Giblin^b
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^a Dickson Research, , 47 Arniens St,Gladesville,, , N.S.W., 2111, [email protected] ^b CSlRO Honorary Research Fellow, ,15 Syban St., Galston,, N.S.W., 2159, [email protected]
Publisher: Australian Society of Exploration Geophysicists
Source: ASEG Extended Abstracts, Volume 2006, Issue ASEG2006 - 18th Geophysical Conference, Dec 2006, p. 1 - 4
DOI: https://doi.org/10.1071/ASEG2006ab035
- Published online: 01 Dec 2006

Abstract

Groundwater geochemistry assists in determining the character of deep geological or geophysical targets from a limited number of boreholes, refining location, size and orientation of host target zones, or directly demonstrating presence of alteration or mineralisation. By themselves, uranium analyses can be very misleading in applying groundwater to U exploration. Detailed analyses of multi-element data is required to properly interpret water data, sorting false from significant indicators. Examples from a range of Australian areas reinforce these comments and show that, sometimes, the U indicator is a mineral assemblage, not a U concentration. Ready availability of modelling software and chemical databases allow exploration implications from groundwater data to be easily accomplished.

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References

Bethke, CM., 1998. The Geochemist’s Workbench Release 3.0. A user’s guide to RXN, ACT2, TACT, REACT and GTPLOT. University of Illinois Hydrogeology Program. Giblin, AM., 1987. Applications of groundwater geochemistry to genetic theories and exploration methods for early tertiary sediment-hosted uranium deposits in Australia. Uranium, 3, 165-186
Giblin A.M., 2001. Groundwaters. Geochemical Pathfinders to Concealed Ore deposits. CSIRO 2001 ISBN 0 643 06874 0 (available from http://www.svd.dem.csiro.au/unrestricted/demDublication /publicat.htm
Giblin, A, 2005. Alligator Rivers uranium deposits (Koongarra, Nabarlek and Ranger One), NT. In: C.R.M. Butt, I.D.M. Robertson, K.M. Scott and M. Cornelius (Editors), Regolith Expression of Australian Ore Systems. CRC LEME, Perth, pp 411-414.
Roberts, D.E., and Hudson, G.R.T., 1983, The Olympic Dam copper-uranium-gold deposit, Roxby Downs, South Australia: Economic Geology, v. 78, p. 799-822.
Wood, WW, 1981. A geochemical method of determining dispersivity in regional groundwater systems. Back, William (editor), Letolle, Rene (editor), Symposium on geochemistry of groundwater, Meeting: 26th international geological congress; symposium on geochemistry of groundwater, Paris, France, July 7-17, 1980.

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Article Type: Research Article

Keyword(s): exploration; groundwater; palaeochannel; uranium

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oa New horizons for groundwater geochemistry in uranium exploration

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