Ferric saponite and serpentine in the nakhlite martian meteorites
Hicks, L. J., Bridges, J. C., Gurman, S. J.(2014). Ferric saponite and serpentine in the nakhlite martian meteorites. Geochimica et Cosmochimica Acta, 136, 194-210. https://doi.org/10.1016/j.gca.2014.04.010
Datasets
| number | title | Methods | variables analyzed | ||
|---|---|---|---|---|---|
| 1 | Compositions of Lafayette apatite and siderite and NWA 817 terrestrial calcite | SEM, CALC | F, TOTAL, MnO, FeO, P2O5, CaO, SiO2, Cl, Na2O, CO2 | ||
| 2 | Compositions of saponite and serpentine phyllosilicates in Lafayette, and amorphous vein deposits across the nakhlites | XANES, EMP | FeO, MgO, SO3, CaO, MnO, SiO2, Al2O3, TiO2, TOTAL, Cl, Fe2O3, P2O5, Na2O, K2O | ||
| 3 | Six Fe-silicate standards and two Fe-silicate nakhlite grains with Fe-K XANES 1s!3d pre-edge absorption centroid positions and their known or calculated Fe3+/ΕFe ratios | XANES | Fe3_SUMFe | ||
| 4 | Fe-K XANES measurements (eV), Fe3+/EFe ratios and Fe–O bond lengths | XANES | Fe3_SUMFe | ||
Methods
| method name | laboratory | method comment | More details are available for the following variables | |
|---|---|---|---|---|
| CALCULATED | UNKNOWN | for CO2 value only, calculated by difference of probe analysis from 100 wt% oxide | ||
| ELECTRON MICROPROBE | OPEN UNIVERSITY | Cameca SX100 measurements made using TAP, LTAP, LLiF, LPET, and PET crystal spectrometers, a 10 um defocused beam, at an accelerating voltage of 20 kV, and beam current 20 nA | ||
| SCANNING ELECTRON MICROSCOPE | UNIVESITY OF LEICESTER | Philips XL30 accelerating voltage of 20 kV and beam current of ~1.0 nA | ||
| X-RAY ABSORPTION NEAR-EDGE STRUCTURE SPECTROSCOPY | UNKNOWN | eV |
