Journal article
Halogens and noble gases in sedimentary formation waters and Zn-Pb deposits: A case study from the Lennard Shelf, Australia
MA Kendrick, D Phillips, M Wallace, JML Miller
Applied Geochemistry | Published : 2011
Abstract
Halogen ratios (Br/Cl and I/Cl) and concentrations provide important information about how sedimentary formation waters acquire their salinity, but the possible influence of organic Br derived from sedimentary wall-rocks is rarely quantified. Here, it is demonstrated that Br/Cl versus I/Cl mixing diagrams can be used to deconvolve organic Br contributions; that organic matter has a limited range of Br/I ratios; and that organic Br is a more significant component in Zn-Pb deposit ore fluids than previously recognised. The significance of these findings is illustrated for the Lennard Shelf Zn-Pb deposits of Western Australia. Fluid inclusions related to Lennard Shelf Zn-Pb mineralisation have ..
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Awarded by Australian Research Council
Funding Acknowledgements
This project was funded by a University of Melbourne Early Career Researcher Grant to MK in 2005. MK thanks Stanislav Szczepanski for technical assistance in the noble gas laboratory; Andy Tompkins for use of the Monash University Linkham fluid inclusion stage; and Gorden Holm for preparation of fluid inclusion wafers. Dr. M. A. Kendrick is the recipient of an Australian Research Council QEII Fellowship (Project Number DP 0879451). Pete Burnard, Chris Ballentine and Steve Kesler are gratefully acknowledged for comments on an earlier manuscript. The current manuscript was further improved by an anonymous reviewer and Daniele Pinti.