We present a new autoclave that enables in situ characterization of hydrothermal fluids at high pressures and high temperatures at synchrotron x-ray radiation sources. The autoclave has been specifically designed to enable x-ray absorption spectroscopy in fluids with applications to mineral solubility and element speciation analysis in hydrothermal fluids in complex compositions. However, other applications, such as Raman spectroscopy, in high-pressure fluids are also possible with the autoclave. First experiments were run at pressures between 100 and 600 bars and at temperatures between 25 °C and 550 °C, and preliminary results on scheelite dissolution in fluids of different compositions show that the autoclave is well suited to study the behavior of ore-forming metals at P–T conditions relevant to the Earth’s crust.
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June 2021
Research Article|
June 11 2021
A hydrothermal apparatus for x-ray absorption spectroscopy of hydrothermal fluids at DESY
S. Klemme
;
S. Klemme
a)
1
Institut für Mineralogie, Universität Münster
, Corrensstrasse 24, 48149 Münster, Germany
a)Author to whom correspondence should be addressed: stephan.klemme@uni-muenster.de
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M. Feldhaus;
M. Feldhaus
1
Institut für Mineralogie, Universität Münster
, Corrensstrasse 24, 48149 Münster, Germany
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V. Potapkin;
V. Potapkin
1
Institut für Mineralogie, Universität Münster
, Corrensstrasse 24, 48149 Münster, Germany
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M. Wilke;
M. Wilke
2
Institut für Geowissenschaften, Universität Potsdam
, Karl-Liebknecht-Str. 24-25, 14476 Potsdam, Germany
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M. Borchert;
M. Borchert
1
Institut für Mineralogie, Universität Münster
, Corrensstrasse 24, 48149 Münster, Germany
3
Deutsches Elektronen-Synchrotron DESY, A Research Centre of the Helmholtz Association
, Notkestrasse 85, 22607 Hamburg, Germany
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M. Louvel;
M. Louvel
1
Institut für Mineralogie, Universität Münster
, Corrensstrasse 24, 48149 Münster, Germany
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A. Loges;
A. Loges
4
Institut für geologische Wissenschaften, Freie Universität Berlin
, Malteserstr. 74-100, 12249 Berlin, Germany
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A. Rohrbach
;
A. Rohrbach
1
Institut für Mineralogie, Universität Münster
, Corrensstrasse 24, 48149 Münster, Germany
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P. Weitkamp;
P. Weitkamp
1
Institut für Mineralogie, Universität Münster
, Corrensstrasse 24, 48149 Münster, Germany
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E. Welter
;
E. Welter
3
Deutsches Elektronen-Synchrotron DESY, A Research Centre of the Helmholtz Association
, Notkestrasse 85, 22607 Hamburg, Germany
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M. Kokh
;
M. Kokh
2
Institut für Geowissenschaften, Universität Potsdam
, Karl-Liebknecht-Str. 24-25, 14476 Potsdam, Germany
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C. Schmidt;
C. Schmidt
5
GFZ German Research Centre for Geosciences
, Telegrafenberg, 14473 Potsdam, Germany
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D. Testemale
D. Testemale
6
Université Grenoble Alpes, CNRS, Grenoble INP, Institut Néel
, 38000 Grenoble, France
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a)Author to whom correspondence should be addressed: stephan.klemme@uni-muenster.de
Rev. Sci. Instrum. 92, 063903 (2021)
Article history
Received:
January 19 2021
Accepted:
May 27 2021
Citation
S. Klemme, M. Feldhaus, V. Potapkin, M. Wilke, M. Borchert, M. Louvel, A. Loges, A. Rohrbach, P. Weitkamp, E. Welter, M. Kokh, C. Schmidt, D. Testemale; A hydrothermal apparatus for x-ray absorption spectroscopy of hydrothermal fluids at DESY. Rev. Sci. Instrum. 1 June 2021; 92 (6): 063903. https://doi.org/10.1063/5.0044767
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