Dionysios I. Foustoukos, Graduate Student Researcher
Mineral solubility at elevated temperatures and pressures provides the primary means for mass-transfer in subseafloor hydrothermal systems at mid-ocean ridges. These hydrothermal systems are the largest on earth and are primarily responsible for maintaining the composition of seawater at steady state values throughout geologic time. Although there have been numerous experiments measuring the solubility of minerals, such as quartz, at a wide range of temperatures and pressures, data does not exist at the critical point of seawater where hydrothermal conditions tend to occur most often. For this reason, new experiments at this P-T region are required. Moreover, to better understand the conceptual framework for experimental data, molecular dynamic calculations are needed. The combination of experimental and theoretical constraints will go a long way to understanding phase relations involving quartz in subseafloor hydrothermal systems.
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URL: http://www.msi.umn.edu/about/publications/annualreport/ar2000/depts/IT/EarthSci_Geology_GeoPhys/seyfried.html |
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