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Deep Earth Water Community Forms to Investigate Fluids in Deep Earth
During the Summer of 2016, Dimitri Sverjensky (Johns Hopkins University, USA) hosted a series of workshops throughout Europe to introduce primarily early career scientists to the Deep Earth Water model (DEW) and its capabilities. DEW, published in 2014, enables modeling of water-rock interactions at the conditions of Earth’s upper mantle, and has already contributed to a suite of high profile publications [e.g. refs 1-9). The workshops nucleated a new initiative within DCO, the Deep Earth Water Community.
In preparation for the workshops, Sverjensky worked with DCO collaborator Mark Ghiorso (OFM Research and University of Washington, USA) and undergraduate student Emily Marshall (Johns Hopkins University, USA) to adapt the modeling codes for aqueous speciation and chemical mass transfer consistent with the DEW model into a general format accessible to scientists in a variety of disciplines. The new versions of modeling tools, along with instructions and tutorials, are available on the DEW website here.
The workshops took place in June and July 2016 over three-five day periods, and took Sverjensky through France, Germany, Italy, and the UK to meet with colleagues, collaborators, and students.
Lyon, France, hosted by Isabelle DanielMünster, Germany, hosted by Carmen Sanchez-ValleMilan, Italy, hosted by Simone TumiatiRome, Italy, hosted by Vincenzo StagnoCambridge, UK, hosted by Simon RedfernSt Andrews, Scotland, hosted by Sami Mikhail
Planning is now underway for a larger research training forum for researchers using the DEW model in a variety of settings. The forum will take place in late Spring 2017. For more information about DEW, please visit the website or contact sver [at] jhu [dot] edu (Dimitri Sverjensky).
1. Mikhail S, Sverjensky DA (2014) Nitrogen speciation in upper mantle fluids and the origin of Earth’s nitrogen-rich atmosphere. Nature Geoscience doi:10.1038/NGEO2271
2. Sverjensky DA, Stagno V, Huang F (2014) Organic carbon species in subduction–zone fluids and implications for the deep carbon cycle. Nature Geoscience 7:909–913
3. Sverjensky DA, Huang F (2015) Diamond Formation due to a pH drop during fluid-rock interactions. Nature Communications 6:8702
4. Galvez ME, Connolly JA, Manning CE (2016) Implications for metal and volatile cycles from the pH of subduction zone fluids. Nature 539:420-424
5. Galvez ME, Manning CE, Connolly JAD, Rumble D (2015) The solubility of rocks in metamorphic fluids: A model for rock-dominated conditions to upper mantle pressure and temperature. Earth Planet. Sci. Lett. 430:486-498
6. Ochoa G, Pilgrim CD, Martin MN, Colla CA, Klavins P, Augustine MP, Casey WH (2015) 2H and 139La NMR Spectroscopy in Aqueous Solutions at Geochemical Pressures. Angewandte Chemie International Edition 54:15444-15447
7. Ochoa G, Colla CA, Klavins P, Augustine MP, Casey WH (2016) NMR spectroscopy of some electrolyte solutions to 1.9 GPa. Geochim. Cosmochim. Acta 193:66-74
8. Pan D, Galli G (2016) The fate of carbon dioxide in water-rich fluids at extreme conditions. Science Advance Vol. 2, no. 10, e1601278
9. Pautler BG, Colla CA, Johnson RL, Klavins P, Harley SJ, Ohlin CA, Sverjensky DA, Walton JH, Casey WH (2014) A High-Pressure NMR Probe for Aqueous Geochemistry. Angewandte Chemie International Edition 53, 9788-9791.