Acoustic and electrical properties of Fe-Ti oxides with application to the deep lunar mantle

The overturn of titanium-rich mantle cumulates has been invoked to explain the structure and dynamics of the Moon. These dense cumulates are stable at the core-mantle boundary (CMB) and could explain field anomalies inferred from geophysical studies. We report the first acoustic and electrical experiments on natural ilmenite-rutile aggregates up to 4.5 GPa and 1920 K. Seismic velocities show a weak pressure and temperature dependence, with Vs ~4.2 (+/-0.2) km/s and Vp ~ 8.0 (+/-0.2) km/s at the CMB conditions. Conductivity increases by a factor > 104 over 373-1920 K and is >103 S/m above 1573 K. Seismic and electrical mixing models of Fe-Ti oxides - olivine rocks based on our results indicate that field velocity and conductivity estimates are reproduced satisfactorily with 3-16% Fe-Ti oxides and 20% melt. Interactions between this Ti-rich and melt-bearing layer and the adjacent core likely affect the cooling and magnetic history of the Moon., , Acoustic and electrical conductivity data from the experiments shown in this study., # Data from: Acoustic and Electrical Properties of Fe-Ti Oxides with Application to the Deep Lunar Mantle

Experimental data used in manuscript EPSL_118570 entitled \"Acoustic and Electrical Properties of Fe-Ti Oxides with Application to the Deep Lunar Mantle\" by Anne Pommier, Michael J. Walter, Ming Hao, Jing Yang, Rostislav Hrubiak (Earth and Planetary Science Letters).

The spreadsheet lists all the acoustic and electrical measurements from the experiments shown in the manuscript.

Each tab corresponds to a type of measurement:
-Electrical: conductivity data as a function of pressure and temperature.
-Acoustic: seismic measurements as a function of pressure and temperature.

The reader is referred to the manuscript for details about the experimental procedures and results.

## Description of the data and file structure

* Electrical: data for the two electrical experiments (Run E1 and Run E2). For each experiment, the different columns correspond to temperature (in degC and K), pres...