A5011316454- Geological and Geochemical Analysis
- High-pressure geophysics and materials
- earthquake and tectonic studies
- Geomagnetism and Paleomagnetism Studies
- Geochemistry and Geologic Mapping
- Geology and Paleoclimatology Research
- Phase Equilibria and Thermodynamics
- Geophysical and Geoelectrical Methods
- Hydrocarbon exploration and reservoir analysis
- Ionosphere and magnetosphere dynamics
- Metallurgical Processes and Thermodynamics
- Astro and Planetary Science
- Paleontology and Stratigraphy of Fossils
- Energetic Materials and Combustion
- Microstructure and Mechanical Properties of Steels
- Thermal and Kinetic Analysis
- Nuclear Materials and Properties
- Advanced Materials Characterization Techniques
- Earthquake Detection and Analysis
- Boron and Carbon Nanomaterials Research
- Thermodynamic properties of mixtures
- Geochemistry and Elemental Analysis
- Building materials and conservation
- Solar Radiation and Photovoltaics
- Air Quality Monitoring and Forecasting
Hebrew University of Jerusalem
2011-2023
California Institute of Technology
2001-2007
Ludwig-Maximilians-Universität München
1989
Ice-rich planets are formed exterior to the water ice-line and thus expected contain a substantial amount of ices. The high ice content leads unique conditions in interior, under which structure planet is affected by interaction with other metals. We apply experimental data ice-rock at pressure, calculate detailed thermal evolution for possible interior configurations ice-rich planets, mass range super-Earth Neptunes (5-15 Earth masses). model effect migration inward on including influences...
We have developed a novel analytical technique for diamond-trap experiments to directly analyze high-pressure, high-temperature fluid and melt compositions in equilibrium with mantle material. Experiments were conducted at pressure of 6 GPa temperatures between 900-1200 °C multi-anvil apparatus synthetic K-free eclogite doped 860 ppm Cs, ~20 wt% H2O, layer diamond aggregates serving as fluid/melt trap. identical conditions analyzed two different methods. In the new, "freezing," approach,...
We determined activity-composition relationships for the Pt-Fe system by equilibrating Fe-oxides with alloys at temperatures in range of 1200-1400 °C and oxygen fugacities from 1.6 to 7.7 log units above iron-wüstite (IW) buffer. The is characterized strong negative deviations ideality throughout investigated temperature (e.g., γalloyFe<0.02 XalloyFe <0.3). Our data are consistent an asymmetric regular solution form:
Abstract— Activities of chromite in multicomponent spinels with compositions similar to those H chondrites were experimentally determined by equilibrating Pt‐alloys spinel at known temperature and f O 2 . Our results are consistent predictions based on the solid solution model incorporated into MELTS program. Therefore, we combined literature formulations for activities components spinel, ferromagnesian silicates, alloys measured (bulk alloy) meteoritic phases constrain T‐ conditions H‐group...