Formation and destruction of magnetite in CO3 chondrites and other chondrite groups
Rubin, Alan E., Li, Ye(2019). Formation and destruction of magnetite in CO3 chondrites and other chondrite groups. Chemie der Erde / Geochemistry, 79(4), 125528. https://doi.org/10.1016/j.chemer.2019.07.009
Datasets
| number | title | Methods | variables analyzed | ||
|---|---|---|---|---|---|
| 1 | Mean ferroan olivine compositions (wt.%) in CO3 chondrites | EMP, PC | Cr2O3, MgO, FeO, CaO, MnO, TOTAL, SiO2, FAYALITE | ||
| 2 | Modal abundances (vol.%) of CO3 chondrites | PC | TROILITE, TOTAL, SILICATE, CHROMITE, LIMONITE, MAGNETITE, FeNi METAL | ||
| 3 | Mean metallic Fe-Ni and carbide compositions (wt.%) in CO3 chondrites | EMP | Co, Cr, TOTAL, Ni, Fe, C, P | ||
| 4 | Mean oxide compositions (wt.%) in CO3 chondrites | EMP | MgO, TOTAL, TiO2, MnO, FeO, Cr2O3, Al2O3, SiO2 | ||
Methods
| method name | laboratory | method comment | More details are available for the following variables | |
|---|---|---|---|---|
| ELECTRON MICROPROBE | UNIVERSITY OF CALIFORNIA - LOS ANGELES | JEOL JXA-8200, acceleration voltage of 15 kV, a 15 nA sample current, 20-s counting times and a focused beam. ZAF corrections | ||
| POINT COUNTING | UNIVERSITY OF CALIFORNIA - LOS ANGELES | Modal abundances were determined microscopically in reflected light using an automated point counter |
