Table 1.
Mineralogy of AOAs from Kaba (CV3.1) and DOM 08006 (CO3.01) carbonaceous chondrites
Chondrite | AOA name | AOA texture | fo | FeNi | Ca-, A1-rich portions | LIME o1b | 1px | |||
---|---|---|---|---|---|---|---|---|---|---|
A1-(Ti)-di | an | sp | haloa | |||||||
Kaba | K27 | compact | + | + | + | + | + | − | − | − |
DOM 08006 | 501 | pore-rich | + | + | + | + | − | + | + | − |
DOM 08006 | 502 | pore-rich | + | + | + | + | − | + | + | + |
DOM 08006 | 503 | pore-rich | + | + | + | + | − | + | + | + |
DOM 08006 | 505 | compact | + | + | + | − | + | − | + | − |
DOM 08006 | 511 | pore-rich | + | + | + | + | − | + | + | − |
DOM 08006 | 512 | pore-rich | + | + | + | + | − | + | + | − |
DOM 08006 | 513 | compact | + | + | + | + | + | − | − | − |
DOM 08006 | 514 | pore-rich | + | + | + | + | − | + | − | − |
Diffuse area that appears to be brighter in BSE images than surrounding forsterite. See section 4.1.
Olivine grains with MnO/FeO (wt%) ≥ 1. The MnO/FeO ratios are calculated from SIMS data in Table 4, except for AOA 514.
The MnO/FeO ratios of olivine grains from AOA 514 are calculated from FE-EPMA data due to an absence of SIMS minor element data.
fo = forsterite, FeNi = Fe,Ni-metal and/or weathering products, Al-(Ti)-di = Al-(Ti) diopside, an = anorthite, sp = spinel, LIME ol = LIME olivine, lpx = low-Ca pyroxene