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ander-Gysi
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From: Daniel Harlov <dharlov@xxxxxxxxxxxxxx>
Subject: Goldschmidt 2018 NSF Workshop: Metasomatism and ore deposits in the Earth’s crust: experimental and modeling methods
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Registration Deadline is July 12
Metasomatism and ore deposits in the Earth’s crust: experimental and modeling methods
Saturday 11th August 09:00 - Sunday 12th August 17:00
Contacts: Alexander P. Gysi (Colorado School of Mines), Daniel Harlov (GFZ Potsdam), Dmitrii A. Kulik (PSI, Switzerland), George D. Miron (PSI, Switzerland)
Contacts: Alexander P. Gysi (Colorado School of Mines), Daniel Harlov (GFZ Potsdam), Dmitrii A. Kulik (PSI, Switzerland), George D. Miron (PSI, Switzerland)
This two-day NSF-sponsored workshop includes hands-on tutorials, lectures, and discussions about current numerical thermodynamic modeling methods, the databases required, and the experimental approaches used for studying metal transport associated with hydrothermal fluid-rock interaction in the crust coupled with examples from nature. The goal of this workshop is to link thermodynamic modeling and experimental approaches, and bring together a broad community interested in the interpretation of crustal metasomatism and ore-forming processes. Participants in the workshop will be provided with a memory stick, which contains the free software, thermodynamic databases, tutorials and relevant references covered.
The workshop is intended for graduate students, researchers, and professionals whom want to learn how to apply the GEMS code package (http://gems.web.psi.ch ) to geochemical modeling, as well as learn about how to use current experimental methods regarding fluid-rock equilibria at elevated P-T conditions. The GEMS code package is based on Gibbs energy minimization, and provides a user friendly framework for predicting mass transfer in complex non-ideal systems such as those associated with fluid-rock interaction and ore-forming processes. The workshop will cover: 1) fundamentals of the GEM-Selektor code package and thermodynamic databases for simulating fluid-rock systems; 2) the GEMSFITS parameter optimization tool for optimizing thermodynamic properties against experimental data; 3) an overview of experimental advances in the study of the stability and mobility of metasomatically induced and altered REE mineral phases in crustal rocks (e.g. monazite, xenotime, apatite, allanite, and titanite); 4) field case studies of metasomatism and associated REE mineral deposits. The first day of the workshop will cover 1) and 2).
Here participants will learn the tools necessary to simulate fluid-rock equilibria at high P-T conditions and how to retrieve the parameters for geochemical modeling. These tools include the GEMS code package, which is supported by a tutorial series for different ore-forming processes (e.g., Greisen tin deposits), and by the MINES thermodynamic database (http://tdb.mines.edu). The second day of the workshop will cover 3) and 4). Here participants will be introduced to the experimental methods and field examples necessary for studying the solubility and speciation of REE in crustal fluids. Short discussion sessions will be included in order for the audience to find connections between the content of the workshop and their own particular interests in crustal fluid-rock interaction, including examples from both nature and experiments. More information about the workshop will be available on the web link above in due time.
Alexander Gysi, Ph.D.
Assistant Professor, Lithogeochemistry
Department of Geology and
Geological Engineering
1516 Illinois Street
Colorado School of Mines
Golden, CO 80401
Phone: +1 303 273 3828
Homepage:
http://econgeol.mines.edu/AlexMINES database and GEMS tutorials:
http://tdb.mines.eduVolcano Listserv is a collaborative venture among Arizona State University (ASU), Portland State University (PSU), the Global Volcanism Program (GVP) of the Smithsonian Institution's National Museum of Natural History, and the International Association for Volcanology and Chemistry of the Earth's Interior (IAVCEI).
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