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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
Statement of
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
DOI: 10.1130/G47087.1
Appears in Collections:Aurora harvest 4
Chemical Engineering publications

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