Fluid and melt properties at high pressures and temperatures: GFZ

Determination of fluid properties at high pressures and temperatures

Speciation and solubility in aqueous fluids and fluid-melt partitioning determined using Raman spectroscopy

Sn(IV) speciation in an experiment with cassiterite (SnO2) and 1.63 molal HCl solution determined in situ using Raman spectroscopy. *(Fig.: C. Schmidt, GFZ)*

Complexation of heavy elements, solubility in aqueous fluids, fluid-melt partitioning, and kinetics of mineral/melt-fluid interaction...

In situ XRF/XAS experiments at synchrotron radiation facilities (example: microfocus beamline ID22, European Synchrotron Radiation Facility, Grenoble). *(Fig.: C. Schmidt, GFZ)*

Complexation of heavy elements, solubility in aqueous fluids, fluid-melt partitioning, and kinetics of mineral/melt-fluid interaction determined from synchrotron-radiation absorption and fluorescence spectroscopy and modified HDAC.

Crystal growth in pegmatite melts

Pegmatitic texture developed by crystallization of a haplogranitic melt with added Li2O, B2O3 and H2O after 113 hours at 600°C, 180 MPa and 72 hours at 550°C, 150 MPa in the sample chamber of a hydrothermal diamond-anvil cell. *(Fig.: C. Schmidt, GFZ)*

Principal investigator

Prof. Dr. M. L. Sirbescu, Central Michigan University