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Light water, heavy water: water anomalies and structural properties

Fluid inclusions in quartz. Hydrothermal cell for high pressure and temperature. Oxygen K-edge spectra of water at conditions indicated. Structural models of water.
Photo: Mirko Elbers
Fluid inclusions in quartz. Hydrothermal cell for high pressure and temperature. Oxygen K-edge spectra of water at conditions indicated. Structural models of water.

This project aims to combine the scientific efforts of physicists and geoscientists to gain new insights into the unique properties and anomalies of liquid water and aqueous solutions under extreme conditions. The properties of hydrothermal water including the associated structural changes are not fully understood. However, they are drastically different to ambient conditions with enormous implications for large scale geological processes. A novel approach is taken by studying water at negative pressures to verify different scenarios. Under these extreme conditions, water is in a stretched state for which different scenarios predict distinct thermodynamic properties, allowing them to be studied in more detail.

Fluid inclusions in quartz. Hydrothermal cell for high pressure and temperature. Oxygen K-edge spectra of water at conditions indicated. Structural models of water.
Photo: Mirko Elbers
Fluid inclusions in quartz. Hydrothermal cell for high pressure and temperature. Oxygen K-edge spectra of water at conditions indicated. Structural models of water.

Light water, heavy water, and sodium chloride aqueous solutions under extreme conditions

Sheding light on water anomalies and structural properties; DFG-ANR project, F. Chaupin (UCBL-ILM), M. Wilke (UP), and C. Sternemann (TU Dortmund)