Sample Petrographic Description
Sample Number | MET 00630 |
Newsletter | 26,1 |
Location | Meteorite Hills |
Field Number | 13531 |
Dimensions (cm) | 3.0 x 2.5 x 1.0 |
Weight (g) | 10.80 |
Original Classification | CM2 Chondrite |
Pairing | MET 00431; MET 001012; MET 00433; MET 00434; MET 00435; MET 00630; MET 00632; MET 00633; MET 00635; MET 00639; MET 00781; MET 00810; |
Mineral Composition (%Fa & %Fs) | |
Fayalite (mol%): 0-2;Ferrosilite (mol%): 2-7 | |
Weathering | |
A | |
Fracturing | |
B | |
Macroscopic Description - Kathleen McBride, Cecilia Satterwhite | |
The exteriors of these carbonaceous chondrites are black with small patches of purplish colored fusion crust. The interiors are a black, platy or shale like matrix with small (< 1 mm) white specks. | |
Thin Section Description (,2) - Tim McCoy | |
We tentatively describe these as paired given their find sites in a linear array ~4 km in length. The MET 0063X meteorites exhibit the shaly texture seen in other MET 00 meteorites, particularly the MET 00431 grouping (AMN Vol. 24, #2), with which these are spatially associated. The sections consist of a few small, unaltered chondrules (up to 1 mm), mineral grains and CAIs set in a black matrix. Olivine compositions are Fa0-41; orthopyroxene is Fs1-7. The meteorites are CM2 chondrites. |
Antarctic Meteorite Images for Sample MET 00630 | ||||
Lab Photo(s) : | ||||
Antarctic Meteorite Images for Sample MET 00630 | ||||
Thin Section Photo(s) : | ||||
References for Sample MET00630 | |
Schultz, C., Anzures, B.A., Milliken, R.E., Hiroi, T., and Robertson, K., 2023, Assessing the spatial variability of the ~3 µm OH/H2O absorption feature in CM2 carbonaceous chondrites. Meteoritics & Planetary Science, 58, 170-194, doi: 10.1111/maps.13946. | |
Hiroi, T., Ohtsuka, K., Howard, K.T., Robertson, K.R., and Milliken, R.E., Kaiden, H., Imae, N., Misawa, K., Kojima, H., Sasakia, S., Matsuokaa, M., Nakamura, T., Bish, D.L., 2021, UV-visible-infrared spectral survey of Antarctic carbonaceous chondrite chips. Polar Science, 29, 100723, https://doi.org/10.1016/j.polar.2021.100723. | |
Kaplan, H.H., Connolly, H.C., Dotto, E., Emery, J.P., Fornasier, S., Lantz, C., Lim, L.F., Merlin, F., Praet, A., Reuter, D.C., Sanford, S.A., Hamilton, V.E., Simon, A.A., Takir, D., and Lauretta, D.S., Howell, E.S., Anderson, F.S., Barrucci, M.A., Brucato, J., Burbine, T.H., Clark, B.E., Cloutis, E.A., 2020, Visible-near infrared spectral indices for mapping mineralogy and chemistry with OSIRIS-Rex. Meteoritics & Planetary Science, 55, 744-765, doi: 10.111/maps.13461. | |
RELAB, , Reflectance Experiment Lab , catalogue of samples. |