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https://hdl.handle.net/2440/128294
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Type: | Journal article |
Title: | Halogens in hydrothermal sphalerite record origin of ore-forming fluids |
Author: | Frenzel, M. Cook, N.J. Ciobanu, C.L. Slattery, A.D. Wade, B.P. Gilbert, S. Ehrig, K. Burisch, M. Verdugo Ihl, M.R. Voudouris, P. |
Citation: | Geology (Boulder), 2020; 48(8):766-770 |
Publisher: | Geological Society of America |
Issue Date: | 2020 |
ISSN: | 0091-7613 1943-2682 |
Statement of Responsibility: | Max Frenzel, Nigel J. Cook, Cristiana L. Ciobanu, Ashley D. Slattery, Benjamin P. Wade, Sarah Gilbert, Kathy Ehrig, Mathias Burisch, Max R. Verdugo-Ihl, and Panagiotis Voudouris |
Abstract: | The halogens Cl and Br are sensitive indicators for the origin of ore-forming fluids. Here, we use a combination of microchemical and microscopic methods to show that measurable concentrations of these elements commonly occur as atomic-scale substitutions in hydrothermal sphalerite. Furthermore, the Cl/Br ratios of halogen-rich sphalerites are indistinguishable from those of the corresponding ore-forming fluids. Thus, they record fluid compositions, which in turn record fluid origin. Given the abundance of sphalerite in hydrothermal base-metal deposits, as well as the relative ease of conducting in situ microchemical analyses, the halogen signature of sphalerite has the potential to become a sensitive proxy to distinguish between different ore-forming environments. |
Rights: | © 2020 Geological Society of America. For permission to copy, contact editing@geosociety.org. |
DOI: | 10.1130/G47087.1 |
Published version: | http://dx.doi.org/10.1130/g47087.1 |
Appears in Collections: | Aurora harvest 4 Chemical Engineering publications |
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