Carbonate Glass HP | Densities, structures and refractive indices at high pressure
How do the physical properties of carbonate melts change with pressure? Can we constrain these properties through optical experiments?
Erupting carbonate melts are rare but their properties are remarkable. In particular, their low density and viscosity set them apart from silicate melts. These properties of carbonate melts in the mantle, however, may be very different from that at Earth’s surface due to structural changes in response to pressure in the melt. In this project we measure the density and the refractive index of carbonate glasses (as proxies of carbonate melts) at high pressure using the capabilities of a setup we have recently developed. These new data will contribute to the understanding of the properties of carbonate-rich liquids in the Earth’s deep interior.
Time frame
- 01.03.2024 -28.02.2027
Principal Investigator
- S. Lobanov (GFZ)
- S. Speziale (GFZ)
Staff
- A. Kalugina (GFZ)
Funding
- DFG
Research Unit(s) (POF/MESI/GIPP)
Cooperation/Partner
- Prof. Dr. B. Winkler (Goethe University, Frankfurt on Main)
- Dr. L. Bayarjargal (Goethe University, Frankfurt on Main)
- Dr. A. Nikolenko (GFZ)